~250,000
Avaya customers globally
Source: Avaya company disclosure
TL;DR
Key Takeaways
- Avaya states an install base of roughly 250,000 customers across more than 190 countries.
- Privately held since emerging from Chapter 11 restructuring in May 2023; Alan Masarek CEO since 2022; originated as a 2000 spin-off from Lucent Technologies.
- BizzContacts maintains 14,800+ verified Avaya records with a 99% accuracy SLA and 98.1% inbox deliverability.
- Banking and financial services is the densest vertical at roughly 19% of verified records.
- BPO and IT services carry the largest seat volume, with single operators running tens of thousands of Avaya seats.
- Enterprise and large enterprise (250 to 4,999 seats) together form roughly half the verified base.
- A large share of the base remains on-premises or hybrid, making deployment model the strongest migration-readiness filter.
- The United States accounts for roughly 47% of verified records; India is the second-largest market by account count.
By the numbers
Avaya Install Base by the Numbers
Quotable statistics on the Avaya install base, sourced from Avaya company disclosures, restructuring filings, ENGAGE conference materials, and BizzContacts proprietary verification.
190+
Countries with Avaya deployments
Source: Avaya company disclosure
2000
Year Avaya was spun off from Lucent Technologies
Source: Company history
May 2023
Emergence from Chapter 11 restructuring as a private company
Source: Restructuring filings
14,800+
Verified BizzContacts Avaya records
Source: BizzContacts Q2 2026 audit
~47%
Share of verified Avaya records in the United States
Source: BizzContacts geographic analysis
98.1%
Inbox deliverability on the BizzContacts Avaya list
Source: Third-party audit, Q2 2026
4.8x
Reply rate vs generic IT decision-maker list
Source: BizzContacts customer benchmark, 2026
What is it
What Is the Avaya Customers List?
The Avaya customers list contains the contact information of professionals working in the companies that use Avaya. Sales and marketing teams use it to run campaigns that promote their products and services to those accounts. Some of the data fields included are name, job title, business email, phone number, and LinkedIn URL.
Who is on it? Organisations of every size that use Avaya software day to day, from a 50-seat IP Office setup in one office to a 20,000-seat Aura and Experience Platform estate spread across continents. Next to each name we record what they run, how they run it (on their own servers, in the cloud, or a mix of both), how many agent seats they have, the industry they sit in, and where their sites are. Those last two details matter more than anything else here, because a bank running 1,200 seats on its own servers and a 40-seat cloud deployment are not the same buyer and should never land in the same campaign.
What do you get for each person? A verified work email, a direct dial number, a postal address, their job title, and the firmographics of the business behind them: company name, industry, size, employee count, revenue band, and location. Enough to run email, phone, direct mail, SMS, or social audience matching from a single file, and enough context that your first line can name the platform they are actually running.
Custom list
Customize Your Avaya Customers List With the Data Fields You Need
A customized Avaya users email database simplifies your B2B marketing strategy and helps you generate positive results, because the file arrives already scoped to the accounts you can actually sell to. We offer the Avaya contact list with full customization options, so you can personalise marketing messages that resonate with your targeted ICP rather than sending one generic pitch to the whole base.
Moreover, you select the data fields yourself, so the list of Avaya users you receive is built around the marketing goals you are actually chasing. A direct mail campaign needs postal addresses and company size; a cold calling programme needs direct dial numbers and job titles; an ABM programme needs firmographics on every account. You pay for the fields that campaign uses and skip the rest.
Choose the products, deployment model, seat band, industry, region, and job titles that define your buyer, and we cut the file to that shape before it reaches you. On this base the deployment and seat filters do most of the work: an on-premises Aura account with 1,200 seats is a completely different conversation from a 40-seat Cloud Office deployment, and the two should never sit in the same sequence.
Tell us the segment and we verify every record against current sources before delivery, typically within 2 to 3 business days. Get an Avaya users email database that fits your needs by choosing the right data fields listed below:
02Top customers
What Companies are Using Avaya?
Below are the list of companies that use Avaya:
Campaign reach
Using the Avaya Customers List Boosts the Success Rate of Your Campaign
Our database contains verified and current Avaya users email addresses, so you can target audiences from your own niche rather than a broad technology list. Reach high-ranking decision makers and key stakeholders at the companies using Avaya, from the CIO who signs the renewal down to the voice engineer who runs the estate day to day.
Avoid bounce rates and make sure your marketing emails actually reach prospect mailboxes. Every address on the Avaya customers list is multi-step verified before it ships, so you connect with the businesses and professionals who are ready to hear about products and services that compete with Avaya, extend it, or replace it outright.
So why delay? Acquire our multi-step verified Avaya mailing list and get solid response rates from your niche audiences, backed by a 30-day replacement guarantee on any contact that bounces or has moved on.
03Definition
Why an Avaya Customer List Matters in 2026
Avaya holds one of the largest installed footprints in enterprise communications, built over two decades of Aura and IP Office deployments across banking, healthcare, government, retail, telecom, and business process outsourcing. That footprint is unusually valuable to outbound teams because it is concentrated, long-tenured, and mid-migration: a substantial share of the base still runs on-premises or hybrid infrastructure and is actively evaluating what its cloud path looks like.
Avaya emerged from Chapter 11 restructuring in May 2023 as a private company with materially reduced debt, and repositioned around the Avaya Experience Platform and an 'innovation without disruption' strategy that lets existing Aura customers add cloud and AI capability without ripping out the estate. That strategy is the central competitive question at every account: Cisco, Genesys, NICE, Five9, Amazon Connect, Talkdesk, Microsoft Teams, RingCentral, and 8x8 all target the same base with full-replacement pitches, while a large ecosystem of AI, workforce engagement, and integration vendors sells alongside the incumbent deployment.
BizzContacts isolates the Avaya install base as a separately filterable cohort so vendors can run focused outbound into CIOs, VPs of Contact Center Operations, Directors of Unified Communications, and Telecom Managers across the entire Avaya customer base.
04Adoption
Organisations Running Avaya
Avaya concentrates in contact-centre-intensive industries: banking and financial services (the densest single vertical, spanning retail banks, credit unions, insurers, and card issuers), healthcare systems and payers, government at federal, state, and local level, business process outsourcing and IT services (where Avaya seats number in the tens of thousands per operator), retail and ecommerce customer care, telecommunications and cable operators, utilities and energy, higher education, airlines, hospitality, and logistics. Manufacturing and professional services appear more often on the unified communications side than the contact centre side.
Customer skew runs heavily to mid-market and enterprise. Approximately 14% are small business accounts (under 50 contact centre seats, typically Avaya IP Office or Cloud Office), 26% are mid-market (50 to 249 seats), 31% are enterprise (250 to 999 seats), 20% are large enterprise (1,000 to 4,999 seats), and 9% are global enterprise (5,000+ seats, typically multi-region Aura and Experience Platform estates). BizzContacts focuses on mid-market and larger where outbound vendor pitches have commercial value.
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05Adoption
Avaya Adoption by Industry
Avaya concentrates wherever contact volume is high and communications uptime is contractual.
Banking and financial services accounts for approximately 19% of the verified Avaya install base, the densest single vertical, driven by long Aura tenure and strict uptime requirements.
BPO and IT services together represent the largest seat volume rather than the largest account count, since a single operator can run tens of thousands of Avaya seats across delivery centres.
Government is disproportionately on-premises, which makes it the slowest-migrating and most defensible segment of the Avaya base.
Healthcare adoption clusters around patient access and member services, where Avaya Experience Platform routing and workforce engagement pitches land best.
Retail and telecom show the highest seasonal seat elasticity, making them the most receptive to burst-capacity and cloud overflow offers.
06Geo coverage
Avaya Adoption by Country
Avaya is genuinely global, with deployments in more than 190 countries and strong presence well beyond North America.
The United States accounts for approximately 47% of the verified Avaya install base, a lower concentration than most enterprise software segments because Avaya's footprint is genuinely global.
India is the second-largest market by account count and arguably the largest by seat count, driven by IT services and BPO delivery centres.
EMEA collectively accounts for roughly 27% of verified records, with the UK, Germany, and the Gulf states the strongest individual markets.
The geographic spread means geo-targeted segmentation matters more on Avaya than on North America-centric platforms: a campaign scoped to one region can still address thousands of qualified accounts.
07US footprint
Avaya Customers by US State
US Avaya deployments span all 50 states with concentration in financial services corridors, healthcare hubs, and government centres.
Charlotte, North Carolina is the densest single metro for Avaya banking contact centres outside New York, driven by the regional banking corridor.
Phoenix and Salt Lake City host a disproportionate share of outsourced and captive contact centre operations, making them high-yield metros for seat-based pitches.
Northern New Jersey retains unusually long Avaya tenure, a legacy of the platform's origins in the Lucent Technologies spin-off.
Virginia and Maryland concentrate federal and defence-adjacent deployments, which are the most compliance-sensitive and slowest to migrate.
08Segmentation
Avaya Customer Size Distribution (focused on Mid-Market and Larger where outbound matters)
Avaya spans small business through global enterprise. BizzContacts focuses on mid-market (50+ contact centre seats) and larger where outbound vendor pitches have commercial value.
Enterprise (250 to 999 seats) and large enterprise (1,000 to 4,999 seats) together form roughly half the verified base and are the highest-velocity outbound segment: large enough to run a formal evaluation, small enough to decide inside a single budget cycle. Global enterprise accounts above 5,000 seats represent strategic multi-region estates where displacement cycles run for years but contract values justify named-account programmes.
09Buyer titles
Decision-Makers at Avaya Customer Accounts
Avaya buying decisions cluster around IT infrastructure, contact centre operations, customer experience leadership, and telecom management.
The Director of Unified Communications and the Telecom Manager are the most Avaya-aware titles on the account and the fastest to reply to technically specific outreach. VP of Contact Center Operations owns seat-based commercial decisions. CIO and Director of IT Procurement come into play on renewal and migration. CISO is a required approver on anything touching recording, session border control, or data residency.
Reach these Avaya decision-makers this week.
Verified Avaya customer contacts with named CIO, ERP Manager, CFO, and procurement titles. 97.4% inbox deliverability.
10Tech stack
Technology Ecosystem Around Avaya Customers
Avaya accounts run a predictable adjacent stack of CCaaS and UCaaS alternatives, AI and agent assist, workforce engagement, session management, and integration tooling.
Compared
Avaya vs Cisco vs Genesys vs NICE vs Five9
Avaya and four leading competing communications platforms compared by buyer focus and BizzContacts coverage.
Avaya wins on protecting long-tenured on-premises investment and hybrid continuity. Cisco wins where the network and collaboration stack are already Cisco. Genesys wins on cloud-native feature velocity. NICE wins on integrated workforce engagement and analytics. Five9 wins on mid-market speed to deploy.
11Benefits
Why Outbound Teams Use the Avaya Customers List
Sell CCaaS migration into on-premises Aura accounts
Reach the exact accounts still running on-premises infrastructure and weighing a cloud path.
Target by contact centre seat band
Scope pitches to the seat counts your pricing and onboarding model actually fits.
Pitch conversational AI and agent assist
Layer-on vendors reach Avaya accounts without asking them to replace the platform.
Position workforce engagement alongside CMS
Verint, Calabrio, and NICE-class vendors target Avaya reporting and WFM gaps.
Reach telecom and voice engineers directly
Session border control, SIP trunking, and endpoint vendors reach hands-on owners.
Event marketing around Avaya ENGAGE
Drive registrations and meetings around Avaya's annual customer conference.
Who buys this list
Which Businesses Can Use the Avaya Customers List
Avaya sits at the centre of enterprise contact centre and unified communications operations. The buyers below are the most common purchasers of the BizzContacts Avaya customers list.
01
CCaaS platforms
Genesys, NICE CXone, Five9, Talkdesk, Amazon Connect, and Cisco target Avaya contact centre estates for migration.
Use case: Cloud contact centre migration, platform displacement, hybrid coexistence.
02
UCaaS and cloud telephony vendors
RingCentral, 8x8, Zoom Phone, and Microsoft Teams voice partners target the Avaya unified communications base.
Use case: Cloud telephony migration, Teams voice enablement, site consolidation.
03
Conversational AI and agent assist vendors
Cresta, Observe.AI, and Level AI layer onto existing Avaya deployments without requiring replacement.
Use case: Real-time agent assist, call summarisation, quality automation.
04
Workforce engagement management vendors
Verint, Calabrio, and comparable vendors target gaps around Avaya CMS reporting.
Use case: Forecasting, scheduling, quality management, interaction recording.
05
CPaaS and messaging providers
Twilio, Vonage, and Sinch sell programmable messaging and voice alongside Avaya channels.
Use case: SMS and messaging channels, programmable voice, notification workflows.
06
Session border control and SIP vendors
Ribbon, Oracle, and AudioCodes compete with and complement Avaya session border controllers.
Use case: SIP trunking, session border control, secure interconnect.
07
Endpoint and headset manufacturers
Jabra, Poly, EPOS, and Yealink sell into agent refresh cycles independent of the platform decision.
Use case: Agent headsets, IP endpoints, hybrid work device refresh.
08
Systems integrators and managed service providers
Integrators and MSPs sell migration, managed voice, and optimisation services to Avaya accounts.
Use case: Migration services, managed voice, estate optimisation, support transition.
If your product or service touches cloud contact centre, cloud telephony, conversational AI, workforce engagement, CPaaS messaging, session border control, endpoints, or communications integration at an Avaya-running organisation, the BizzContacts Avaya customers list is the most direct path to qualified CIO, VP Contact Center Operations, Director of Unified Communications, and Telecom Manager decision-makers.
12Buyer use cases
Why Businesses Purchase the Avaya Users Email List
Contact centre and UC title precision
CIO, VP Contact Center Operations, Director of Unified Communications, and Telecom Manager at Avaya-running accounts.
Avaya product filtering
Filter by Aura, Experience Platform, IP Office, Call Management System, Cloud Office, Session Border Controller, and Workforce Engagement.
Deployment model filtering
Filter by on-premises, hybrid, or cloud, the single strongest predictor of migration readiness.
Seat band filtering
Filter by contact centre seat count from under 50 to 5,000+.
Global geo-targeting
Segment across the US, UK, Canada, Australia, Germany, France, Italy, India, and the Gulf.
Higher reply rates than generic IT lists
BizzContacts Avaya records benchmark at 4.8x the reply rate of generic IT decision-maker lists.
13Data dictionary
What Every Avaya Record Includes
Every record on the BizzContacts Avaya customers list ships with the following fields.
14Trust signals
Why BizzContacts for Avaya Intelligence
Communications title precision
Data resolves to Director of Unified Communications, VP Contact Center Operations, and Telecom Manager rather than generic IT contacts.
Product-level Avaya tagging
Every record tagged with the specific Avaya products live, including Aura, Experience Platform, IP Office, CMS, and Cloud Office.
Deployment model and seat band
The two filters that predict migration readiness and deal size better than firmographics alone.
Genuinely global coverage
Verified records across 190+ countries, not a North America file with token international rows.
Multi-step verified records
Every contact passes automated validation plus manual analyst review before it ships.
98.1% inbox deliverability
Multi-step email verification on every record, with a 30-day replacement guarantee.
How we build the data
Obtain a Verified, High-Quality, and Well-Segmented Avaya Users Contact List Sourced From Trustworthy Platforms
Our expert data professionals collect Avaya users email addresses only from legitimate and trusted sources, then verify the Avaya users mailing list through a five-step data validation procedure involving advanced AI technologies and human checks to raise the quality of the database.
The Avaya users email list is 100% consent-based, which means the prospects have agreed to receive marketing and sales messages. We also guarantee that the database strictly adheres to data compliance policies such as GDPR, the CAN-SPAM Act, CCPA, and more, so you will not encounter any kind of legal repercussion when using the list in your B2B targeting efforts.
Here are the offline and online channels we use to gather data, all focused on confirming the Avaya products in production, deployment model, contact centre seat band, industry, and geographic footprint, plus the named communications decision-makers on each account:
A record is shipped only when at least two independent sources confirm the Avaya deployment and the decision-maker contact is verified by the research desk within the trailing 30 days.
Customer voice
What Outbound Teams Say About BizzContacts Avaya Data
The on-premises Aura filter was the whole campaign. We pulled 2,900 accounts still running on-premises and booked 61 migration assessments in a quarter. Reply rate went from 2.1% to 9.4%.
Seat band filtering meant we stopped wasting sequences on 40-seat shops our pricing never fit. Targeting 1,000+ seat Avaya estates cut our cost per meeting by more than half.
Telecom managers and voice engineers actually reply when the message is technically specific. This was the first list where those titles were reliably correct rather than generic IT contacts.
Ready to test the Avaya customers list?
Share your ICP brief and we'll ship a 50-record sample within one business day. No credit card required.
15Quick answers
Avaya Buyer Intelligence: Quick Answers
Short, direct answer blocks optimised for AI search engines and featured snippets.
Q: How many companies use Avaya?
A: Avaya states an install base of roughly 250,000 customers across more than 190 countries. BizzContacts verifies 14,800+ records focused on mid-market and larger accounts where outbound has commercial value.
Q: What is Avaya Aura?
A: Avaya's enterprise unified communications platform, comprising Communication Manager for call processing, Session Manager for SIP session control, and System Manager for administration. It is the core of most long-tenured on-premises Avaya estates.
Q: What is the Avaya Experience Platform?
A: Avaya Experience Platform (AXP) is the company's flagship cloud contact centre and omnichannel customer experience platform, positioned to add cloud and AI capability to existing Aura deployments without a full replacement.
Q: What is Avaya IP Office?
A: Avaya's unified communications platform for small business and mid-market organisations, covering voice, video, messaging, and basic contact centre functions at lower cost and complexity than Aura.
Q: What is Avaya Call Management System?
A: Avaya CMS is the long-established contact centre reporting and historical analytics product, widely embedded in enterprise operations and a frequent target for workforce engagement and analytics vendors.
Q: What is Avaya Cloud Office?
A: Avaya's UCaaS offering, delivered in partnership with RingCentral, aimed at customers moving telephony off premises.
Q: Who owns Avaya?
A: Avaya is privately held. It emerged from Chapter 11 restructuring in May 2023 owned by its former creditors, having reduced debt substantially. Alan Masarek has served as CEO since 2022. Avaya originated as a 2000 spin-off from Lucent Technologies.
Q: How does Avaya compare to Genesys?
A: Genesys Cloud CX is cloud-native and typically pitched as a full replacement. Avaya wins on protecting existing on-premises investment and hybrid continuity; Genesys wins on cloud-native feature velocity.
Q: How does Avaya compare to Cisco?
A: Both hold large enterprise estates across contact centre and unified communications. Cisco wins where the network and collaboration stack are already Cisco; Avaya wins on contact centre depth and long-tenured routing customisation.
Q: How does Avaya compare to NICE CXone?
A: NICE CXone bundles CCaaS with workforce engagement and analytics, and often displaces Avaya Aura plus CMS as a pair. Avaya wins on migration continuity; NICE wins on integrated WEM and analytics.
Q: How does Avaya compare to Microsoft Teams?
A: Teams competes mainly on the unified communications side rather than the contact centre. Many Avaya accounts run Teams for collaboration while keeping Avaya for contact centre, which makes them prime targets for integration and coexistence pitches.
Q: What industries use Avaya most?
A: Banking and financial services, business process outsourcing, IT services, healthcare, government, insurance, retail, telecommunications, utilities, higher education, airlines, hospitality, and logistics.
Q: Where is the largest Avaya install base?
A: The United States accounts for roughly 47% of verified records. India is the second-largest market by account count and among the largest by seat count, followed by the UK, Canada, Germany, and Australia.
Q: How accurate is the BizzContacts Avaya customers list?
A: 99% record-accuracy SLA, 98.1% inbox deliverability, and a 30-day replacement guarantee on any bounced or mistagged contact.
Q: Can I filter by deployment model?
A: Yes, by on-premises, hybrid, or cloud, which is the strongest available signal of migration readiness.
16Search insights
People Also Ask About Avaya Customers
17FAQ
Avaya Customers List FAQs
Why act now
Use the Avaya Users Email List to Obtain Strong Recognition for Your Brand
Leveraging our Avaya users email list, present your products, services, and solutions to ready-to-buy audiences across the companies that use Avaya, and turn that visibility into significant sales and ROI. These are people who already hold a communications budget and already own a platform decision, which is what separates them from a cold technology audience.
Using our Avaya users mailing list, you can not only attract new audiences but also retain existing ones through cross-sell and up-sell opportunities. The same Avaya customers list serves both motions, because every record carries the deployment context that tells your team which product to lead with across contact centre, unified communications, endpoints, and managed services.
By utilising our clean and error-free Avaya users email database, position your brand value at the top of a highly competitive technology sector. Low bounce rates keep your messages landing in prospect mailboxes rather than spam filters, which is what makes repeated exposure across the companies that use Avaya build recognition rather than irritation.
Data hygiene
Our Data Hygiene Services: Boost the Quality and Authenticity of Your Email Database
We offer data hygiene services to help businesses like yours work from the high-quality, up-to-date email list your B2B marketing success depends on, rather than a file that quietly decayed since the last campaign. Communications data ages quickly: migration projects move telecom managers and UC directors between roles, sites consolidate, and inboxes go dark.
Transform an outdated and inaccurate database into a current and accurate one using our data cleansing, data appending, data deduplication, data enrichment, and other services. We remove invalid, inactive, and duplicate entries, fill the gaps in missing firmographic and contact fields, and re-verify each Avaya deployment signal against current sources.
Regular audits, completeness and accuracy checks, and automated validation on every record keep hard bounce rates low and protect your sender reputation. Do not delay: get our data hygiene services and optimise the quality and accuracy of your new or existing email database, whether it is a file you just bought or one you have been building for years.
18Full technology index
Every Technology Users Database Inside BizzContacts
Browse every install-base and technographic database BizzContacts maintains. Every link below points to a live BizzContacts landing page with verified customer records, decision-maker contacts, and buyer-center intel for that platform, updated on a continuous verification cycle.
121 technology users databases covered. Every entry links to a verified install-base landing page with buyer contacts.