$61.5B
Anthropic valuation, March 2025
Source: Anthropic Series E announcement
TL;DR
Key Takeaways
- Anthropic Claude is deployed across thousands of enterprise accounts via direct API, Amazon Bedrock, and Google Cloud Vertex AI.
- Claude is strongest in software, financial services, healthcare, consulting, education, media, and federal government.
- Anthropic was valued at $61.5B in the March 2025 funding round, making it one of the most strategic private AI companies.
- BizzContacts maintains 9,400+ verified Anthropic enterprise records with 97.6% inbox deliverability.
By the numbers
Anthropic Customers by the Numbers
Quick stats you can quote in any outbound campaign.
3
Major distribution channels: Anthropic API, AWS Bedrock, GCP Vertex AI
Source: Anthropic disclosures
MCP
Anthropic-led open standard for AI tool integration
Source: Anthropic announcement, 2024
9,400+
Verified records in our Anthropic file
Source: BizzContacts Q2 2026 audit
97.6%
Inbox deliverability rate
Source: Third-party audit, 2026
30 days
Decision-maker revalidation window
Source: BizzContacts policy
What is it
How Many Companies Use Anthropic Claude Today?
Anthropic is the AI safety company behind Claude, the family of frontier large language models built on Constitutional AI alignment research. Claude is deployed across enterprises for software engineering, customer service, analytics, document understanding, and agentic workflows, with growing adoption inside regulated industries that prioritise alignment and safety.
Anthropic does not publicly disclose total customer count, but the company has confirmed strong enterprise traction across the Fortune 500 and a Claude API business that runs across direct, Amazon Bedrock, and Google Cloud Vertex AI distribution channels. Anthropic was valued at $61.5B in the March 2025 funding round.
02Definition
Why Buy an Anthropic Customers List?
Anthropic customers are actively procuring adjacent AI infrastructure, governance, observability, RAG, agent orchestration, and safety tools every quarter. Reaching the AI buying centre with a sharp, generative-AI-specific pitch beats sending another generic CIO blast.
Our Anthropic Customers List narrows the field. You get a list of real Claude-running accounts with named Chief AI Officer, AI Strategy, and Responsible AI decision-makers, ready to drop into your campaigns the same day you receive it.
03Adoption
Which Companies Run Anthropic Claude?
Anthropic Claude runs across software and SaaS, financial services, healthcare and life sciences, professional services and consulting, federal government, education, retail, media, and digital health. The customer base spans growing startups using Claude API for product features all the way up to global enterprises rolling out Claude Enterprise to tens of thousands of employees.
Here is a quick sample of well-known companies that run Anthropic Claude today.
04Top customers
Examples of Companies Using Anthropic Claude
A snapshot of Anthropic accounts, drawn from public references and Claude customer announcements.
See if your top Anthropic accounts are in the database.
Get 50 verified Anthropic customer records that match your ICP. Delivered in one business day.
05Adoption
Anthropic Customers by Industry
Anthropic Claude runs hottest in industries that need careful reasoning, strong safety properties, and long-context document understanding.
Software and cloud tech is the densest single vertical for Anthropic, with most modern AI-led companies running Claude alongside other models.
Healthcare and life sciences customers favour Claude for strong reasoning and longer context windows in clinical and regulatory documentation.
06Geo coverage
Anthropic Customers by Country
Anthropic Claude is available globally through the Anthropic API, Amazon Bedrock, and Google Cloud Vertex AI. Most paying enterprise accounts cluster into the markets below.
The United States accounts for roughly six in ten paying Anthropic enterprise accounts.
European customers favour Claude for strong reasoning and the Anthropic emphasis on responsible AI alignment, particularly in regulated finance.
07US footprint
Top US States for Anthropic Customers
Inside the USA, Anthropic accounts concentrate in modern software hubs, financial centres, and consulting cities.
California carries the densest US Anthropic Claude footprint, especially among modern AI-led SaaS companies.
Tennessee anchors a growing healthcare and publishing cluster including Sentinel Healthcare Information Systems and Lonely Planet.
08Segmentation
Anthropic Customers by Company Size
You can customize the Anthropic Customers List by company size to match the AI buying profile you want to reach.
Mid-sized and enterprise accounts (1,000 to 4,999 employees) are the densest target band for adjacent AI governance, model evaluation, agent orchestration, RAG, AI security, and AI cost-control vendor pitches.
09Buyer titles
Key Decision-Makers on the Anthropic Customers List
Anthropic buying authority sits with AI executives, AI strategy leaders, responsible AI heads, and platform engineering owners.
Most Anthropic conversations route through the Chief AI Officer, VP AI Strategy, and Director of Generative AI. The Director of Responsible AI plays a central role in alignment and evaluation tooling decisions. The CISO signs off on Claude Enterprise data residency and security. The Director of Engineering Productivity owns Claude-powered coding agents.
Reach these Anthropic decision-makers this week.
Verified Anthropic customer contacts with named CIO, ERP Manager, CFO, and procurement titles. 97.4% inbox deliverability.
10Tech stack
Tools That Pair With Anthropic
Anthropic sits in the middle of a predictable AI infrastructure stack you can pair your pitch with.
Compared
Anthropic Claude Vs OpenAI Vs Google Gemini Vs Cohere Vs Open-Source
A quick look at how Anthropic Claude compares with the platforms it competes with most often.
Anthropic Claude wins on reasoning quality, alignment depth, and long-context document understanding. OpenAI wins on developer ecosystem and ChatGPT brand reach. Google Gemini wins on Google Workspace integration and Vertex AI bundling. Cohere wins on enterprise NLP and sovereign data residency. Open-source wins on cost-sensitive and on-prem deployments.
11Benefits
Features of the BizzContacts Anthropic Customers List
Hand-verified records
Every contact passes a manual research review before we ship the file.
Filter by Anthropic product mix
Pick Claude Enterprise, Claude Team, direct API customers, Bedrock customers, or Vertex AI customers.
Claude seat band where available
Records carry estimated Claude Enterprise seat bands to help size your deal opportunity.
97.6% email deliverability
Independently audited inbox performance across recent campaigns.
Weekly refresh cycle
We re-check titles, emails, and Anthropic signals every week.
Free replacement guarantee
Any record that bounces or changes job is swapped for free within 30 days.
Privacy-law compliant
Aligned with GDPR, CCPA, and CAN-SPAM. Phones screened against DNC lists.
Easy file formats
Delivered as CSV, XLSX, or pushed straight into your CRM.
Who buys this list
Who Should Use the Anthropic Customers List?
The Anthropic Customers List works best for vendors and service providers selling into AI procurement teams. Common buyers of the list include the categories below.
01
AI governance and evaluation platforms
Sell Credo AI, Robust Intelligence, Holistic AI, Patronus AI, Galileo, Arize AI into Claude accounts maturing responsible AI programs.
Use case: Model evaluation, red-teaming, bias testing, AI risk management, AI policy compliance
02
AI gateway and inference cost-control vendors
Pitch Portkey, Kong AI Gateway, LiteLLM, OpenRouter, Vellum, Helicone into Claude customers managing multi-model inference costs.
Use case: AI gateway routing, cost controls, fallback models, observability for LLM inference
03
Vector database and RAG infrastructure vendors
Sell Pinecone, Weaviate, Qdrant, Chroma, Milvus, Turbopuffer into Claude-running RAG applications.
Use case: Vector search, embedding storage, RAG pipelines, hybrid search
04
Agent orchestration and AI workflow vendors
Pitch LangChain, LlamaIndex, Vellum, Crew AI, Sema4, AgentOps, Inkeep to Anthropic customers building agentic applications.
Use case: Agentic AI workflows, multi-step LLM orchestration, agent evaluation, prompt management
05
AI observability and tracing vendors
Sell Langfuse, Helicone, Arize Phoenix, LangSmith, Traceloop into Claude accounts in production.
Use case: LLM observability, prompt tracing, token cost tracking, eval pipelines
06
AI security and prompt injection defence vendors
Pitch Lakera, Prompt Security, HiddenLayer, Protect AI, Lasso Security into Claude accounts hardening AI applications.
Use case: Prompt injection defence, model security, AI red-teaming, jailbreak detection
If your product or service touches AI governance, AI gateways, vector databases, agent orchestration, AI observability, or AI security for a Claude-running organisation, the BizzContacts Anthropic Customers List is the most direct path to the Chief AI Officer or AI Strategy leader who actually signs.
12Buyer use cases
Why Marketers Buy Our Claude Users Email List
Reach the AI buying centre
We deliver named Chief AI Officer, VP AI Strategy, Director of Generative AI, and Director of Responsible AI contacts.
Anthropic-specific segments
Cut the list by direct API customers, Bedrock customers, Vertex AI customers, MCP early adopters, or Claude Agent SDK users.
Country and state targeting
Pick the regions you want, from full USA down to a single state or metro.
Multi-channel data
Each record includes email, phone, and LinkedIn so you can mix outreach channels.
Stronger reply rates
AI-specific targeting beats generic CIO blasts every time.
13Data dictionary
Customize Your Claude Users Email List With Rich Data Fields
Pick the fields you want on your Claude Users Email List. The standard data fields shipped with the Anthropic Customers List are below.
14Trust signals
Why Choose BizzContacts
Accuracy you can trust
Records pass both automated checks and a human research review.
Anthropic-specific tagging
Product mix, distribution channel, seat band, MCP adoption, and Claude Agent SDK flags on every row.
Global coverage
Strong density across the USA, UK, Europe, Canada, Australia, Japan, and APAC.
Strong inbox results
97.6% inbox deliverability across recent customer campaigns.
Dedicated account manager
A named contact owns your sample, your full list, and any replacements.
How we build the data
How We Build the Anthropic Customers List
Every record on our Anthropic file goes through a multi-source research process before it reaches you.
A record only ships when at least two independent signals confirm Anthropic Claude use and the contact has been verified inside the trailing 30 days.
Customer voice
What Our Clients Say
Filtering by Claude Enterprise customers in healthcare with MCP early adoption was the textbook ICP for our healthcare AI agent product. We sourced 300 accounts and booked 18 demos in six weeks.
The Anthropic API plus financial services cross-filter gave us the perfect ICP for our AI governance product. Reply rates beat eleven percent and the cohort closed two pilots inside the first month.
Ready to test the Anthropic customers list?
Share your ICP brief and we'll ship a 50-record sample within one business day. No credit card required.
15Quick answers
Quick Answers About the Anthropic Customers List
Short, direct answer blocks optimised for AI search engines and featured snippets.
Q: What does the Anthropic Customers List include?
A: It includes verified company details and named AI decision-makers at companies that run Anthropic Claude.
Q: How many companies use Anthropic Claude?
A: Anthropic does not publicly disclose total customer count, but the company has confirmed strong enterprise traction across the Fortune 500 and a fast-growing Claude API business.
Q: Which country has the most Anthropic customers?
A: The United States is the largest market, followed by the UK, Canada, Germany, Australia, and Japan.
Q: Can I request a free Anthropic sample?
A: Yes. Send us your target profile and we will share a 50-record sample.
Q: How fresh is the data?
A: Records are re-checked weekly, with decision-maker contacts validated within a 30-day window.
Q: Does the list work with my CRM?
A: Yes. Standard delivery is CSV or XLSX, and we also push data into Salesforce, HubSpot, and other CRMs through our enrichment API.
16Search insights
People Also Ask About Anthropic Customers
17FAQ
Frequently Asked Questions
18Explore more
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