List of Top USA B2B Email Marketing Platforms in 2026!

In 2023, the market size of global email marketing solution is valued at $1.38B, and is expected to raise to $3.73B by 2032. Specifically, North America has dominated the market with a significant share of 34.78% in 2023, and the trend continues. This represents intense competition in email marketing among B2B businesses in the USA generating the need for B2B email marketing platforms. It helps to automate, streamline, and accelerate the email marketing processes for best results. Sending an email with email marketing platforms is like learning 1,2,3,4… in secondary school.

Market figures above are from the Fortune Business Insights email marketing software market report.

In 2025 & ahead, generic approach to email marketing won't produce a penny. Relying on email marketing platforms is a cornerstone to win the highly competitive USA email marketing landscape. Consequently, you must select an user-friendly email marketing platform with next-generation factors such as automation capabilities, integrations, hyper-personalization, segmentations, deliverability, analytics, budget-friendly pricing, and the recently added Artificial Intelligence for your business.

Therefore, keeping in mind your need for an email marketing platform, in this blog we've outlined the best and advanced platforms with pricing details and specifications. Compare and grab the most optimal pick for your business.

What are the Top 20 USA Email Marketing Platforms in 2026?

1. 1ActiveCampaign
2. 2Constant Contact
3. 3Omnisend
4. 4Moosend
5. 5Brevo
6. 6MailerLite
7. 7Flodesk
8. 8Salesforce
9. 9HubSpot
10. 10MailChimp
11. 11Zoho Campaigns
12. 12SendPulse
13. 13MailBluster
14. 14GetResponse
15. 15Sender

1. ActiveCampaign

It is a powerful marketing automation platform that specializes in email marketing, CRM, and sales automation. The main feature is creating and triggering emails based on the prospects in the pipeline.

Best for

• Small to mid-size businesses
• Businesses seeking for a platform that is CRM-compatible

Features to Support Email Marketing

• Advanced Automation: It automates email campaigns with personalization, A/B testing, etc. Under automation, there's a feature activity feed that gives recent activity status of the contacts. Results? Hyper-personalized email copy leading to increase in click, open, view, and ultimately conversion.
• Split Testing: It includes A/B testing features allowing businesses to test multiple versions of email copy to find the right for higher click-rate, views, open-rate, response, engagement rate optimizing the effectiveness of email marketing.
• Easy Segmentation: It provides detailed segmentation options helping businesses to segment their email list based on several criteria such as purchasing pattern, browsing behavior, etc., for precision-targeted email campaigns.
• Dynamic Content Curation: The predictive and conditional content features by ActiveCampaign drafts email copy that is highly relevant to the user's intent. It also optimizes subject line, and CTAs.
• AI Integration: ActiveCampaign AI utilizes produce and purify email content, creates high-quality images, and finds the right time to send email for maximum email marketing effectiveness. Also, based on past customer behaviors, it generates follow-up tailored email copy.
• Intuitive Interface: The interface is user-friendly. In context to email marketing, drag and drop email editor is easy to use.

Cons

• Learning Curve: The complex and technical features on the platforms make quite a challenging task for beginners resulting in steep learning curve. On the other hand, tech-driven professionals can interpret all the features without major difficulties.
• Exorbitant Pricing: The pricing plan is too high, especially the higher plans with advanced and more features. However, businesses with stringent budgets may find difficulty investing in ActiveCampaign.
• Poor Deliverability: ActiveCampaign deliverability rate is not up to the mark.

This reflects the deliverability challenge with the ActiveCampaign email marketing platform.

Pricing Model

Businesses purchasing subscription from ActiveCampaign must opt for the annual plan. It is comparatively cheaper than monthly. The below prices are based on annual plan:

2. Constant Contact

An email marketing platform since 1995 comes up with niche features and top-notch capabilities supporting the B2B email marketing. With Constant Contact easy-to-use interface and quick sign-up businesses can create and execute an email campaign within 10 minutes.

Best for

• Small Business Type
• Beginners
• Event Organizers

Features to Support Email Marketing

• A/B Split Testing: It allows for testing of multiple email versions including subject line, body, salutations, etc. The software identifies the best performing email copy and automatically sends it to the audience.
• Good Deliverability: The platform maintains a deliverability rate as high as 97%. It provides resources on email mistakes that make your message end in the spam box, and best practices to ensure your email lands in the right place. It gives an option to self-authenticate your email address or domain name with DKIM. If more than 0.1% emails get flagged as spam, then Constant Contact quickly puts your account under review, a stringent spam policy.
• Email List Management: It create lists of prospects who are highly receptive and looking to hear from you. Then, it segments the list based on interest, demographics, browsing behavior to send highly targeted email. Outcome? A higher view, open, and response rate. Even other email marketing platforms offers list management; the distinguishing factor is Constant Contact automatically removes duplicates and non-opt-in contacts, no manual efforts.
• AI Tools: AI-powered Constant Contact automate and boosts the email marketing processes by curating appealing email text for your campaign. For beginners, you just need to add the contacts and information into the pre-built templates. Also, if you look for further automation, you can turn on custom triggers that automatically send email as and when necessary, as per the subscriber's activity.
• Easily Accessible Reports: Once the emails are delivered, on the Constant Contact platform you can easily access the report sketching details on the KPIs (views, open rate, click-through rate, bounces, unsubscribed, spam rates, etc.) Downloading their app is good choice, it helps to check the campaign's report anywhere across the globe in real time.

Cons

• Automation Feature: They offer a very basic automation that is not a good option for businesses running email marketing on a large scale. There's no option for automation on the main menu. And nowadays, every marketer be it in small or large firms is seeking to automate their non-core activities.
• Lengthy Cancellation Process: The cancellation process is time-consuming as on Constant Contact dashboard there is no option to cancel the subscription. To cancel, you need to get in touch with customer care via call. This makes it a lengthy process.
• Affordability: For small businesses, you had to send a hundred emails and require basic automation, the pricing is ideal. On the other hand, for top tier plans with number of key features, the price is quite high. Therefore, before investing in their service, try the 60-Day free trial plan to understand if it really fits your business.

Pricing Structure

The pricing structure is categorized into three types: Lite, Standard, and Premium.

3. Omnisend

A robust email marketing platform to create professional and personalized email campaigns in just a flick of an eye generating higher open rates and ultimately upscaling business.

Best for

• E-commerce Business

Pros

• Advanced Automation: Even if you're not from a tech background, you can easily leverage the advanced automation for your email campaign. No technical coding required.
• Clean Interface: The moment you log in, you get on to the modern and beginner-friendly interface. All the features are easy to navigate through and understand.
• Quick Support & Help: It offers 24/7 live chat and email support. Also, the videos tutorials and community forums (where you can connect with professionals actually using Omnisend for instant support if stuck somewhere).

Cons

• No Edit Option: There's no editing an email campaign option which is imperative if some minor or major mistakes happens.
• Poor Tracking Capabilities: The tracking feature doesn't analyze the email campaign minutely which can affect the performance.
• Limited Email Templates: The email templates offered by Omnisend are not too attractive and relevant. There is a need for more customized options.

Pricing Plan

4. Moosend

Launched in 2012, the most intuitive email marketing platform that helps to build, send, and automate the email campaigns and get interested subscribers. It is trusted and reliable choice for small and big businesses across the globe.

Suited for

• SMBs
• eCommerce Brands
• Non-Profits
• Large scale (advanced automations)

Crucial Features Offered for Email Marketing

• Unlimited Email Sends: Moosend the most exclusive feature is email sends (unlimited) which is uncommon among all other platforms.
• Affordable: The basic pricing plan starts at $7/month, which is quite budget friendly. Additionally, the basic plan also has good features to support the email campaigns.
• Real-Time Triggers: It comes up with advanced trigger features ensuring email getting sent automatically based on real-time actions such as website visit, order placing, clicking on a link, etc.
• Drag and drop + Email Templates: The drag-drop editor option is simple making it user-friendly and good for beginners. Also, there are multiple impactful email templates (110+ customizable templates) allowing businesses to draft effective email inciting the users to act.
• Optimized for Mobile: Most of the email marketing platforms don't perform well on mobile phones. Some features are restricted. Contrary to this, Moosend mobile application allows to create, send, edit, automate, and personalize easily and quickly.
• Exclusive Automation: Compared to top-rated email marketing platforms, Moosend beats most of them in terms of automation.

Cons

• Limited A/B Testing: It limits testing to only subject lines. Other parts such as email body, designs, etc., can't be subjected to A/B testing. Also, you can only compare two versions A & B at the same time, more than 2 is not possible.
• Lack of Segmentation: There's no segmentation option in either of the plans, unlike other providers that offer at least a basic segmentation and even advanced.
• Slight Deliverability Issue: The deliverability rate is 86-90%, which is not a bad percentage. However, they still need to work on it, ensuring each email lands in the main inbox, leaving no room for spam.

Pricing Model

Like the other platforms, Moosend annual pricing plan is a great save of 20% automatically. The following plans are based on annual basis:

5. Brevo

An AI-enabled email marketing platform to build connections with your customers via email, and other communication channel. With strong deliverability and significant value, Brevo is one of the most effective platforms streamlining email campaigns and boosting engagement.

Great for

• Small businesses (online)
• Digital Agency
• Non-Profit organizations

Pros

• Deliverability Rate: The platform guarantees a delivery rate of 99% ensuring maximum number of email lands directly into the inbox avoiding spam.
• Optimized Email Design: It offers drag and drop editor and pre-built template allowing businesses to design email and newsletter with little to no efforts. Moreover, the design is optimized for all screen types such as phones, tablets, laptops, etc.
• AI Assistant: They offer exceptional AI assistant which helps to curate compelling subject lines and email content. Also, the predictive AI analyzes the best sent time leading to increased engagement.
• Unmatched Automation: This feature provides two option: create own automation workflows or utilize from the 8 prebuilt ones. Choosing from the already available ones is a good move.
• Excellent Segmentation: It allows easy and fast segmentation ensuring you send relevant email to specific audience. All you need to do is insert the email list and segment based on attributes and filters such as purchasing pattern, browsing behavior, demographics, etc., available on the menu.
• Good Personalization: Through Brevo's customization ribbon, you can personalize by adding multiple attributes such as name, location, etc. You can personalize subject line and add dynamic content into your email.

Cons

• Limited Sending: With the free plan, there is a sending limit of 300 email campaigns/day which is very less number making it not a good option for growing businesses.
• Poor in-house migration: If you're planning to change to another email marketing platform, Brevo has no migration option. You need to do most of the migration by yourself resulting in spending a lot of time and resources.
• Customer Support: Facing difficulty with your email marketing campaign and need quick solution? With starter plan, you can contact Brevo only via email, for phone support upgrade to Business Plan. However, there is no live chat on the website. The unresponsive and slow support assistance hinders the performance.

Pricing Model

6. MailerLite

Known for its robust feature, MailerLite is both powerful and intuitive email marketing platform great choice for startups seeking develop professional's connections via email. Unlike other platforms that overwhelms businesses with complex features and cumbersome dashboard, MailerLite core principle is simplicity.

Best for

• Small Businesses
• Marketing Agencies
• E-commerce Stores

Pros

• Unparalleled Email Design: With the drag and drop editor and customizable templates, businesses can draft an email with ease. Also, where most of the emails are being opened on mobile phones, the MailerLite optimizes the email design that looks great on all devices.
• Personalization: It allows businesses to add personalize elements such as name, hometown details, etc., to make the subscriber feel valued and think the email is drafted exclusively for them.
• Segmentation: Great segmentation feature allowing businesses to categorize based on engagement levels, purchase history, demographics, etc., for sending targeted audience resonating with specific groups.
• Reports and Analytics: The easy to navigate dashboard allows businesses to easily monitor and track the email campaign performance such as CTRs, subscribers, open rates, etc. It helps in refining the strategies.
• A/B Testing: It helps to test different subject line, Call-to-Actions, email content, etc., and find the one that resonates with your target audience generating better engagement, effectiveness, and higher return on email campaign.
• High Deliverability: Email addresses are appropriately authenticated with SPF, DKIM, DMARC, delivering all the emails straight into the main inbox, no spam!

Cons

• Basic Automation: MailerLite limited advanced automation doesn't support predictive workflows which is unfavorable to large-scale businesses.
• No migration availability: Businesses moving to MailerLite from another email marketing platforms needs to manually shift subscribers, templates on their own.
• Support Assistance: The customer support gives priority to premium users which is an indication of increase wait time for free or basic users needing quick solutions leading to campaign ineffectiveness.

Pricing Plan

7. Flodesk

Founded in 2019 with the aim to create the most user-friendly email marketing platform for businesses. The platform offers extensive features which are easy to use and effective.

Best for

• Small Businesses
• Creative Businesses

Pros

• Customizable Templates: The email templates is professionally designed and can be completely modified as per your brand colors. You are also allowed to add your own brand images.
• Time Scheduling: It allows to choose the "best time" for sending an email and schedule the campaign. This enables to catch the right audience and witness higher open and click rate.
• Analytics: Get general reports on email campaigns such as how many emails sent, how many delivered, Open rates, click rates, Bounces, Unsubscribed, Marked spam. This helps businesses understand what's working and what needs modification.

Cons

• Surface-Level Automation: The automation is not multi-trigger workflows; it is confined to single-trigger. This is not good for businesses who require more triggered emails.
• Support Assistance: There is no call or chat support; it is restricted to email support which might lead to delays in solving your queries i.e., increased wait time.
• No heat map: Also known as email click map. This shows on which buttons, links, and images are clicked on the email. Flodesk doesn't have it.

Pricing Structure

8. Salesforce

Considered as the best-in-class email marketing platform helping businesses deliver professionally designed emails for increased subscribers.

Best for

• Mid-Sized Business
• Large-scale Business

Pros

• 360-view of Customer Data: It offers multiple insights into customer behavior such as browsing behavior, interactions with the brand, past purchasing pattern, etc., helping businesses create relevant email content.
• Intuitive Interface: The interface is easy to navigate and understand with simple features. It helps businesses to create and track campaigns easily.
• Good Campaign Management: Salesforce provide tools helpful for campaign reporting and analytics to measure the actual state of the email campaigns for further improvement in strategies and plans.

Cons

• Cost is too High: For small businesses or businesses with limited budget, the pricing plan is too expensive.
• Steep Learning Curve: The platform has multitude of features making it complex for new users to understand, learn, and master.
• Sometimes Slow: It is noticed that the software sometimes take times for loading, making it unresponsive leading to decrease in productivity.
• Customer Support is Unreliable: Sometimes, even after approaching the customer support, they aren't able to solve complex issues.

Pricing Structure

Pricing is too complex, for detailed view check the Salesforce marketing pricing page. Note: No free plan available!

9. HubSpot

A comprehensive email marketing platforms helping businesses create and personalize stunning/impactful email campaigns. With HubSpot, you get every feature you need to build lucrative connections.

Best Suited for

• Large-Scale Enterprise (high budgets)

Pros

• User-friendly: The HubSpot's interface is for user of competencies, from newbies to email marketing platforms. They also provide a tour of their software which gives support to understand and getting started with the platform.
• Automation for Free Plans: Their free plan lets you send a certain number of automated emails based on triggers such as form submissions (sending welcome emails).
• Great Segmentation: The advanced email tool help to segment audience on the basis past purchase, engagement pattern, interactions with website, etc., enabling to draft email sequences resonating with specific behaviors or interests.
• Impressive Reporting: The report dashboard can be personalized. It allows you to add the metrics you want to see on the main menu. You can also share the reports with the person you want to have access of it.
• Better Deliverability: It provides powerful authentication support, bounce handling, spam protection, etc., ensuring email lands in the right place.

Cons

• Restricted Customer Support: With free plan customer support is limited to knowledge base and community forum, you can't contact HubSpot via live chat, email, or call. Any major issues witnessed with the free plan can be difficult to tackle.
• Quite Expensive: The high point features come under the high tier plans that are expensive hindering the businesses with tight budgets.
• Limited Features: The "free email marketing plan" includes basic features, and for a better version you must invest in starter plan which is priced at $50/month, and next is professional package with more features at $800.
• No A/B Testing in Low-tier Plans: A/B testing is crucial for all business type trying different strategies for email marketing campaigns. However, with HubSpot free and starter plan there is no A/B testing available. You need to invest $800 or above to access the feature.

Pricing Details

10. MailChimp

It is the top email marketing platform that provide the right approach to convert your every email into revenue. They consider themselves the best-in-class recommending ways to get more opens, clicks, views, etc.

Best Fit for

• High-Level Enterprises

Pros

• Ease of Use: They offer classic builder (drag and drop editor) and a newly discovered "builder" that uses AI tools to optimize the email content. Both the features are simple.
• Top Analytics Tool: Mailchimp analytics and reporting features give 360-degree view of the email campaign performance enhancing the effectiveness.
• A-grade email automation: This feature allows to send triggered email sequences or follow-ups based on multiple metrics. For instance, you can send personalized email if someone visits the website for the first time.
• AI-Assistant: An effective and provocative email content along with subject line can be created with the help of generative AI.
• Personalization: Under the merge tag, you'll get multiple options such as full name, birthday, address, etc., or you can manually add as per choice and accordingly personalize the content.

Cons

• Automation Restricted for Free Plans: The automation feature isn't present on the free plans. Therefore, businesses must opt for the paid plans to experience it.
• Difficult Navigation: The interface is complex. There are number of features not clearly mentioned on the main board, and navigating through all can be daunting at times.
• Pricing: The paid pricing plan is too steep and there's a sending limit to monthly email campaign. You need to pay for any duplicate, inactive, or unsubscribed contacts. Contrary to this, other email marketing platforms charge only for unique contacts.
• Email Templates: There are 100 pre-built templates mentioned by MailChimp. Among 100, it is observed that most of them seem repetitive and obsolete.
• A/B Testing Limited to 2 Plans: For free plans, you can only test two different subject lines together.

Pricing Model

11. Zoho Campaigns

An all-in-one powerful email marketing platform that perfectly balance creation of email content, personalization, sending follow-ups, and accomplish high inbox placement. The platform is made for only those who have their own email lists and seeking help with email marketing campaign.

Best for

• Small Businesses
• Medium-Scale Businesses

Pros

• Robust Automation: The advanced automation allows businesses to establish autoresponders, triggered campaigns, follow-ups, sequences as per the user's behavior increasing customer engagement.
• Affordability: Zoho pricing plan is budget-friendly for all business types and sizes making it go-to choice for businesses looking to execute email marketing campaign.
• Intuitive Interface: The interface is beginner-friendly and it contains easy to use features such as drag and drop editor supporting businesses with even less technical skills.
• Good Compliance: Zoho ensures the subscribers to whom the email is being sent abides by global compliance policies such as GDPR, CAN-SPAM, CCPA, etc.

That compliance point applies to your data as much as your sending tool. If you are unsure where your contacts stand, read how we handle GDPR and CAN-SPAM on every list we build.

Cons

• Poor Deliverability: Deliverability is a slight concern. A huge number of people using Zoho mentioned that emails are landing in the spam box.
• Limited A/B Testing: The A/B testing is not multivariate. It is only restricted to subject line. However, people looking to optimize the email content, Zoho cannot help on that front.

Pricing Structure

12. SendPulse

A user-friendly email marketing platform with the aim to transform your email marketing strategy into life by sending highly targeted emails to targeted prospects. SendPulse allows to create a mailing list, create impactful campaigns, and send it.

Best for

• Small Businesses & Startups
• Marketing Agencies
• Nonprofits
• SaaS Companies

Pros

• Multivariate A/B Testing: It allows testing for subject line, email content, and other components of the email to get the most impactful email copy.
• AI Assistant: The built-in AI feature in SendPulse aids in curating intriguing email copy. It speeds up the entire email campaign generating good results.
• In-depth Reports: With SendPulse, you can analyze your previous campaign performance such as email traffic and conversion rate to make your strategy better.
• AI-Personalization at the top: It allows for segmentation based on user behavior, purchasing pattern, and then leverages AI-personalization to write the email content as per the segmentation for better response and engagement.
• Dependable Deliverability: The authentication and IP options ensures your email lands in the main inbox instead of spam folder every time.

Cons

• Basic Automation: SendPulse offers basic automation, but compared to HubSpot, Zoho, etc., it is less.
• Higher Learning Curve: Too many features on the interface makes it complex and non-intuitive. Therefore, at the beginning the learning curve becomes quite steep.
• No mobile app for Email Campaign: Unlike other email marketing platforms, SendPulse doesn't provide mobile app to manage the email campaign at your fingertip from anywhere.
• No Branding Removal: Businesses opting for free plans send email which contains a brand logo of SendPulse.

Pricing Plans

13. MailBluster

An affordable email marketing platform with cutting-edge technology to craft best-in-class personalized email. Trusted by 50K+ businesses, MailBluster offers intuitive and exclusive features.

Best for

• Small business
• Startups
• Larger Marketing Firms

Pros

• Reliable Deliverability: Leverages DKIM/SPF tools, bounce tracking, and ensures high inbox rates. There's less chances of emails getting marked as spam.
• Cost-Effective: There is no monthly subscription unlike other email marketing platforms which makes MailBluster stand out. You have to only pay for the email you send, pay as you go.
• Intuitive Interface: A clean, uncluttered, no complexity in the interface with drag and drop editor option to create visually compelling email campaigns. Email scheduling and tracking campaign report on the dashboard is simple.

Cons

• Limited Templates: It has a handful of templates with basic designs unlike the other email marketing platforms offering vibrant, aesthetic, industry-specific, campaign-driven templates.
• Support Assistance: They have no live chats or phone number on the website. Therefore, it can be problematic for businesses on the verge of meeting deadlines.

Pricing Plan

Other Features to Fast Track Your Email Campaigns!

• A/B Testing
• Autoresponders
• CAN-SPAM Compliance
• Customer Segmentation
• Event Triggered Actions
• Click Tracking
• Dynamic Content
• Email Campaign Management
• Generative AI
• Mobile Optimization
• Personalization
• Preview Functionality

14. GetResponse

An affordable and easy to use platform helping businesses convert more customers with highly personalized email campaign. Send email to specific audience segment and get response quickly.

Best for

• Mid-sized Business
• E-commerce Store

Pros

• Build First Campaign in 10 minutes: The user-friendly interface helps to build email campaigns in only ten minutes saving up the time and resources.
• 24/7 Customer Support: The live chat and email support is available around the clock. Additionally, there is help center.
• Advanced Automation made Easy: Setting up complex automation such as autoresponders, sequences, triggered workflows can also be done within 30 minutes.
• Email List Automation: Powerful than most of the B2B email marketing platforms allowing businesses to automatically segment the list based on multiple conditions.
• Great Deliverability: With GetResponse, you get deliverability rate of 99% which is an excellent number.

Cons

• Outdated Templates: The email templates available look dull; a polish is needed.
• High Pricing: For businesses with small email lists, the pricing is budget friendly. But as the list grows, it becomes expensive.
• Advanced Features in High-Tier Plans: The best features required for B2B email marketing campaign is only added in the high-tier plan making it an unreliable choice for businesses with tight budget.

Pricing Structure

15. Sender

A very supportive email marketing platform that helps businesses right from capturing leads to closing deals via email campaigns.

Best for

• Ecommerce stores
• Small and medium businesses

Pros

• Easy to use Interface: When you land on the interface, you'll find all the features and tabs are well-organized helping you easily set up campaigns in minutes.
• Free Forever Plan: It offers a free forever plan along with basic automation, which no other B2B email marketing platforms does.
• High Deliverability Rate: The deliverability rate is up to the mark as they adhere to strict authentication standards.
• In-house migration: If you're moving from another email marketing platform to Sender, they have a migration feature which automatically transfer your data with full security, unlike Brevo and MailerLite.
• Always Available: The support agents are always available to solve queries and doubts related to your B2B email marketing campaigns.

Cons

• Sender Branding: In the free plan, your email content will have the sender branding i.e., the brand name and logo which to some extent doesn't create a good impression.
• Poor Segmentation: The segmentation feature is weak, and restricts businesses from creating targeted email content.
• Improper A/B Testing: For subject line A/B testing works properly, but for the email content it is not that effective.
• Less Email Template: The email templates are not available in many varieties, especially if you want for different themes such as sales promotion, webinar invitation, etc. It is quite difficult to find such theme email template with Sender.

Pricing Plans

Conclusion

The blog covers the top email marketing platforms in the USA that can be effective in 2026 and ahead. All platforms come with their own set of strengths and weaknesses. No single platform is best for all; you must choose one that aligns with your use cases.

For growing businesses, Brevo, Flodesk, and SendPulse is a good choice. For medium size business, Moosend, MailerLite, MailBluster is a better option. For large-scaled business with flexible budget, ActiveCampaign, HubSpot, Salesforce, Zoho Campaigns, etc.

Once you invest in an email marketing platform, set up campaigns, and build workflows, switching is too costly. Therefore, evaluate wisely the top USA B2B email marketing platforms, and make the right choice.

Choosing the platform is step one. Step two is filling it with contacts worth sending to. If you want more on that side, read how to build a B2B email list in 2026 and our guide to the top B2B data providers in the USA.