List of Companies Using Avaya
Prospecting companies using Avaya? Here they are, biggest first, including Online Business Systems, Cloud5 Communications and Montana Department of Transportation. Open a company to see its revenue range, headcount, tech stack and the people to contact.
Company NameIndustryLocationFundingRevenueEmployees
$500M - $1B
620
$100M - $250M
619
$100M - $250M
619
$250M - $500M
617
$1.1B
$250M - $500M
617
$250M - $500M
617
$50M - $100M
616
$80M
$50M - $100M
616
$50M - $100M
616
$25M - $50M
615
$25M - $50M
615
$1B - $10B
615
$100M - $250M
614
$1B - $10B
614
$25M - $50M
614
$50M - $100M
614
$25M - $50M
614
$10M - $25M
613
$1B - $10B
613
$500M - $1B
612
$1M - $10M
612
$5.3M
$500M - $1B
611
$1.9B
$1B - $10B
610
$250M - $500M
610
$1.2B
$250M - $500M
610
$7.5M
$100M - $250M
609
$250M - $500M
608
$250M - $500M
608
$10M - $25M
608
$250M - $500M
607
$50M - $100M
606
$100M - $250M
605
$100M - $250M
605
$1.6M
$100M - $250M
604
$562M
$100M - $250M
604
$50M - $100M
604
$250M - $500M
603
$1B - $10B
603
$250M - $500M
602
$100M - $250M
601
$10M - $25M
600
$5.6M
$100M - $250M
600
$50M - $100M
599
$250M - $500M
599
$2.4M
$500M - $1B
599
$50M - $100M
598
$5.3M
$1M - $10M
598
$250M - $500M
598
$50M - $100M
597
$7M
$100M - $250M
597
$500M - $1B
595
$50M - $100M
595
$500M - $1B
594
$250M - $500M
593
$3.2B
$500M - $1B
593
$500M - $1B
591
$100M - $250M
591
$136M
$250M - $500M
591
$100M - $250M
591
$100M
$250M - $500M
590
$250M - $500M
590
$1M - $10M
589
$30M
$25M - $50M
589
$250M - $500M
588
$10M - $25M
588
$500M - $1B
587
$1B - $10B
586
$1M - $10M
586
$100M - $250M
586
$50M - $100M
586
$250M - $500M
586
$50M - $100M
585
$1B - $10B
585
$77M
$50M - $100M
584
$100M - $250M
584
$100M - $250M
583
$250M - $500M
583
$80M
$100M - $250M
583
$50M - $100M
583
$38M
$100M - $250M
583
$10M - $25M
582
$50M - $100M
582
$500M - $1B
581
$100M - $250M
580
$38M
$250M - $500M
580
$25M - $50M
580
$100M - $250M
579
$25M - $50M
579
$10B+
578
$25M - $50M
578
$25M - $50M
578
$1B - $10B
577
$100M - $250M
576
$100M - $250M
575
$383M
$50M - $100M
573
$250M - $500M
573
$250M - $500M
573
$1M - $10M
572
$50M - $100M
572
$25M - $50M
572
About companies using Avaya
Why target companies using Avaya?
Avaya is a Customer support & communications technology. Companies running these tools operate help desks, live chat and phone or video platforms, which makes them buyers of customer experience, telephony and support tooling. Companies on the list include Online Business Systems, Cloud5 Communications and Montana Department of Transportation.
Which industries use Avaya the most?
Among companies using Avaya on LeadIQ, the most common industries are IT Services and IT Consulting, Hospitals and Health Care, Financial Services, Software Development, Hospitality and Insurance. Narrow your list to the industry you sell into from there.
Where are companies using Avaya located?
Companies using Avaya are most often headquartered in the United States, the United Kingdom, Canada, France, Australia and Germany.
What other Customer support & communications technologies do companies use?
Prospecting the wider Customer support & communications space? Related technologies with their own company lists include Zendesk, Zoom, ServiceNow and WhatsApp Business.
How do I reach decision makers at companies using Avaya?
Open a company to see its employee directory and email format, then use LeadIQ to get verified work emails and phone numbers for the people you want to reach and push them straight to your CRM or sequencer.
Insights based on LeadIQ data refreshed in September 2026.
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