Company lists · Data refreshed September 2026

Top 25 Unified communications consulting firms based in the United States

Name: Unified communications consulting firms based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 1,053 companies tracked

RevenueBase identified 1,053 company matches for unified communications consulting firms associated with the United States as of September 2026 and tracks 33,647 professional contacts across them, including 9,814 with verified work emails. New York is the largest hub.

This list covers company matches for unified communications consulting firms associated with the United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 29, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Sep 29, 2026 How this list was built

1,053Companies

33,647Contacts tracked

9,814Verified emails

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The 25 largest unified communications consulting firms based in the United States

Ranked by team size

Top 25 of 1,053 company matches for unified communications consulting firms based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 29, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	AVAYA	Exact match	Morristown, NJ, United StatesHQ recorded Sep 29, 2026	5,001-10,000	10,510 contacts →
	Exact match “At Avaya, we give our customers the freedom to take their business in the directions that benefit them most.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
2	Avi-Spl	Exact match	Tampa, FL, United StatesHQ recorded Sep 29, 2026	1,001-5,000	4,017 contacts →
	Exact match “At AVI-SPL, we go beyond technology; we empower the human experience at work.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
3	Polycom	Exact match	San Jose, CA, United StatesHQ recorded Sep 29, 2026	1,001-5,000	1,787 contacts →
	Exact match “Plantronics and Polycom are now Poly.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
4	Intermedia Intelligent Communications	Exact match	Sunnyvale, CA, United StatesHQ recorded Sep 29, 2026	1,001-5,000	1,254 contacts →
	Exact match “Intermedia is the cloud communications company that helps over businesses connect better, from wherever, through our AI-powered platform that includes voice, video conferencing…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
5	Integra	Exact match	Vancouver, WA, United StatesHQ recorded Sep 29, 2026	501-1,000	1,133 contacts →
	Exact match “Integra is Allstream.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
6	Momentum	Exact match	Atlanta, GA, United StatesHQ recorded Sep 29, 2026	501-1,000	437 contacts →
	Exact match “We unleash human momentum with collaboration, connectivity, and communications technology.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
7	Fusion Connect	Exact match	Atlanta, GA, United StatesHQ recorded Sep 29, 2026	201-500	425 contacts →
	Exact match “Fusion Connect, an industry leading cloud communications provider, removes complexity so customers can focus on running their business.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
8	Continuant	Exact match	Tacoma, WA, United StatesHQ recorded Sep 29, 2026	201-500	366 contacts →
	Exact match “With three decades of expertise in the enterprise communications space, Continuant stands out as a seasoned Managed Services Provider, Systems Integrator, and Technology…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
9	Cenero	Exact match	Malvern, PA, United StatesHQ recorded Sep 29, 2026	201-500	252 contacts →
	Exact match “Since Cenero has been a service focused audio-visual, unified communications and IT solutions provider.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
10	NACR	Exact match	Eagan, MN, United StatesHQ recorded Sep 29, 2026	501-1,000	252 contacts →
	Exact match “As the leading global integrator of business communication solutions and services since 1993, NACR has been a trusted advisor to more than 40% of the Fortune 100 companies…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
11	Broadsoft	Exact match	Gaithersburg, MD, United StatesHQ recorded Sep 29, 2026	1,001-5,000	252 contacts →
	Exact match “BroadSoft, now part of Cisco, is the leading provider of software and services that enable mobile, fixed-line and cable service providers to offer Unified Communications over…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
12	Calltower	Exact match	South Jordan, UT, United StatesHQ recorded Sep 29, 2026	201-500	226 contacts →
	Exact match “Since 2002, CallTower has been at the forefront of transforming global communication, emerging as a leader in enterprise-class cloud communication, collaboration, and CX solutions.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
13	Advantage Communications Group	Exact match	Port Washington, NY, United StatesHQ recorded Sep 29, 2026	51-200	198 contacts →
	Exact match “Advantage mitigates the complexity of navigating a constantly evolving IT landscape.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
14	Grandstream Networks	Exact match	Boston, MA, United StatesHQ recorded Sep 29, 2026	201-500	191 contacts →
	Exact match “Grandstream has been connecting the world since 2002 with unified communications and networking solutions that make communicating more impactful than ever before.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
15	Vertical Communications	Exact match	Tempe, AZ, United StatesHQ recorded Sep 29, 2026	201-500	175 contacts →
	Exact match “Vertical Communications is a leading provider of communications platforms and applications that enable critical business workflows for enterprises across a variety of industries…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
16	Firstcomm	Exact match	Fairlawn, OH, United StatesHQ recorded Sep 29, 2026	51-200	174 contacts →
	Exact match “FirstComm delivers smarter business communications and IT solutions that help organizations connect, collaborate, and scale with confidence.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
17	Zultys	Exact match	Sunnyvale, CA, United StatesHQ recorded Sep 29, 2026	51-200	159 contacts →
	Exact match “Zultys is a premier provider of omnichannel, Unified Communications, hosted business phone services and premise-based communications systems.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
18	Unifiedcommunications	Exact match	Houston, TX, United StatesHQ recorded Sep 29, 2026	51-200	129 contacts →
	Exact match “We’re a team that lives and breathes technology, and we care deeply about the people we serve.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
19	Panterra Networks	Exact match	San Jose, CA, United StatesHQ recorded Sep 29, 2026	51-200	126 contacts →
	Exact match “PanTerra is a business-class Unified Cloud Service Provider, seamlessly delivering unified communications, team collaboration, call center, file sync & share, and business…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
20	Altura Communication Solutions	Exact match	Fullerton, CA, United StatesHQ recorded Sep 29, 2026	201-500	123 contacts →
	Exact match “Altura Communication Solutions, with offices nationwide, is one of Avaya's largest Diamond Business Partners and a leading provider of communication-enabled solutions and…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
21	Teleco, INC	Exact match	Greenville, SC, United StatesHQ recorded Sep 29, 2026	51-200	122 contacts →
	Exact match “WHY TELECO At TELECO, we believe that business owners deserve access to the same advantage-creating technologies mega corporations depend on for their success.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
22	Skyswitch	Exact match	Blue Bell, PA, United StatesHQ recorded Sep 29, 2026	501-1,000	113 contacts →
	Exact match “SkySwitch is the leading white-label UCaaS reseller platform offering MSPs, VARs, telecom agents, interconnect ISPs and WISPs a cloud-based voice platform to brand under your own…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
23	DMS	Exact match	Dallas, TX, United StatesHQ recorded Sep 29, 2026	51-200	108 contacts →
	Exact match “DMS supply and integrate video conferencing solutions that help businesses worldwide communicate simply and effectively.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
24	Telecloud	Exact match	Morristown, NJ, United StatesHQ recorded Sep 29, 2026	11-50	108 contacts →
	Exact match “TeleCloud delivers modern Unified Communications, VoIP, and AI-powered communication solutions, paired with the personal, local service businesses deserve.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
25	Star2star	Exact match	Sarasota, FL, United StatesHQ recorded Sep 29, 2026	201-500	103 contacts →
	Exact match “Founded in 2006 in Sarasota, Florida, Star2Star Communications delivers the World's Leading Hybrid Cloud Communications Solution.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “unified communications consulting firms”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 1,053 unified communications consulting firms based in the United States

See the full list, filter by size, metro and specialty, and access 9,814 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Unified communications consulting firms based in the United States at a glance

As of Sep 29, 2026

29.2%Verified-email coverage

32.0Average contacts per company

11-50Median size (employees)

3.2%Largest-city concentration · New York

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

495

11-50

407

51-200

108

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 1,053 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with the United States whose business descriptions match “unified communications consulting firms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every displayed company carries at least one verified work email. RevenueBase tracks 9,814 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 29, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Unified communications consulting firms by metro

Unified communications consulting firms in New York34

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “unified communications consulting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many unified communications consulting firms are there based in the United States?

RevenueBase identified 1,053 company matches for unified communications consulting firms associated with the United States as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

AVAYA tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most unified communications consulting firms?

New York leads with 34 company records, followed by Dallas (19) and Houston (18).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 9,814 professional contacts with verified work emails tracked across these 1,053 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 29, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.