Company lists · Data refreshed September 2026

Top 25 Voip consulting companies based in the United States

Name: Voip consulting companies based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 22, 2026 1,086 companies tracked

RevenueBase identified 1,086 voip consulting companies headquartered in the United States as of September 2026 and tracks 8,708 professional contacts across them, including 2,504 with verified work emails. New York is the largest hub.

This list covers voip consulting companies headquartered in the United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 22, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 22, 2026 86% judged on-target in blind review

1,086Companies

8,708Contacts tracked

2,504Verified emails

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The 25 largest voip consulting companies based in the United States

Ranked by team size

Top 25 of 1,086 voip consulting companies based in the United States, ranked by team size, largest first. Data refreshed Sep 22, 2026. RevenueBase Smart Search rates how each company's information relates to voip consulting companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	ACS	Indirect evidence	Lake Mary, FL, United StatesHQ checked Sep 22, 2026	n/a	358 contacts →
	Indirect evidence “ACS has over three decades of experience and unparalleled expertise in the assessment and implementation of voice and data platforms and can provide solutions for telephone…” Source: RevenueBase Database · checked Sep 22, 2026
2	Advantage Communications Group	Indirect evidence	Port Washington, NY, United StatesHQ checked Sep 22, 2026	51-200	198 contacts →
	Indirect evidence “Advantage mitigates the complexity of navigating a constantly evolving IT landscape.” Source: RevenueBase Database · checked Sep 22, 2026
3	Forerunner Technologies, INC	Indirect evidence	Edgewood, NY, United StatesHQ checked Sep 22, 2026	51-200	184 contacts →
	Indirect evidence “Established in 1988, Forerunner Technologies, Inc.” Source: RevenueBase Database · checked Sep 22, 2026
4	In-Telecom	Strong evidence	Slidell, LA, United StatesHQ checked Sep 22, 2026	51-200	151 contacts →
	Strong evidence “In-Telecom offers a full spectrum of solutions such as VoIP phones, access control, unparalleled customer service, IT consulting, and quality workmanship from our experienced…” Source: RevenueBase Database · checked Sep 22, 2026
5	IPCOM	Partial evidence	Miramar, FL, United StatesHQ checked Sep 22, 2026	51-200	142 contacts →
	Partial evidence “IPCOM Network provee Servicios Integrados Virtuales de Comunicación VoIP para reducir costos, aumentar la productividad y la inteligencia de negocios unificando soluciones de CRM…” Source: RevenueBase Database · checked Sep 22, 2026
6	KOL Telecom Services LLC	Partial evidence	Wilmington, DE, United StatesHQ checked Sep 22, 2026	11-50	112 contacts →
	Partial evidence “KOL Telecom is the leading innovator of small business Voice over IP (VoIP) Phone services.” Source: RevenueBase Database · checked Sep 22, 2026
7	Voip Supply	Partial evidence	Amherst, NY, United StatesHQ checked Sep 22, 2026	11-50	110 contacts →
	Partial evidence “We Solve Problems and Create Solutions with VoIP.” Source: RevenueBase Database · checked Sep 22, 2026
8	Telecloud	Partial evidence	Morristown, NJ, United StatesHQ checked Sep 22, 2026	11-50	108 contacts →
	Partial evidence “TeleCloud delivers modern Unified Communications, VoIP, and AI-powered communication solutions, paired with the personal, local service businesses deserve.” Source: RevenueBase Database · checked Sep 22, 2026
9	Gventure Technology PVT LTD	Partial evidence	Dover, DE, United StatesHQ checked Sep 22, 2026	51-200	85 contacts →
	Partial evidence “GVenture is a leading VoIP solution development, web application development and mobile application development company over globe and offshore development center at Delhi India.” Source: RevenueBase Database · checked Sep 22, 2026
10	Voip Networks	Partial evidence	Cherry Hill, NJ, United StatesHQ checked Sep 22, 2026	51-200	83 contacts →
	Partial evidence “Powering Your Companies Voice & More Utilizing the latest technologies in voice such as VoIP (Voice-Over-Internet-Protocol) and other networking technologies, we can provide your…” Source: RevenueBase Database · checked Sep 22, 2026
11	Csdnet	Indirect evidence	Bayport, NY, United StatesHQ checked Sep 22, 2026	51-200	76 contacts →
	Indirect evidence “CSDNET, Inc.” Source: RevenueBase Database · checked Sep 22, 2026
12	Atsi Business Communications Systems	Indirect evidence	Houston, TX, United StatesHQ checked Sep 22, 2026	11-50	75 contacts →
	Indirect evidence “At ATSI, we believe technology should empower people.” Source: RevenueBase Database · checked Sep 22, 2026
13	Telecomp	Partial evidence	Rogers, AR, United StatesHQ checked Sep 22, 2026	51-200	74 contacts →
	Partial evidence “TeleComp is a full-service technology company offering Enterprise VoIP phone systems, Fiber Bandwidth, Cybersecurity/Compliance and Managed Services.” Source: RevenueBase Database · checked Sep 22, 2026
14	Clarity Voice	Indirect evidence	Southfield, MI, United StatesHQ checked Sep 22, 2026	51-200	60 contacts →
	Indirect evidence “It’s no secret that staying connected and accessible is absolutely crucial in today’s business environment.” Source: RevenueBase Database · checked Sep 22, 2026
15	RTM Communications	Indirect evidence	Bedford, NH, United StatesHQ checked Sep 22, 2026	51-200	57 contacts →
	Indirect evidence “At RTM, our primary goal is to leverage technology to help our customers business while paying close attention to the customers best interest, profitability and success.” Source: RevenueBase Database · checked Sep 22, 2026
16	Conquest Technologies, INC	Indirect evidence	Columbia, MD, United StatesHQ checked Sep 22, 2026	51-200	54 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 22, 2026
17	Oit, LLC Oitvoip	Indirect evidence	Miami Lakes, FL, United StatesHQ checked Sep 22, 2026	11-50	54 contacts →
	Indirect evidence “OIT, LLC is a service-first organization that specializes in telecommunications and distributed networking.” Source: RevenueBase Database · checked Sep 22, 2026
18	Avatel Technologies	Indirect evidence	Brandon, FL, United StatesHQ checked Sep 22, 2026	11-50	53 contacts →
	Indirect evidence “As the world has changed so has the way businesses are expected to communicate.” Source: RevenueBase Database · checked Sep 22, 2026
19	OTG Consulting	Partial evidence	Frisco, CO, United StatesHQ checked Sep 22, 2026	201-500	53 contacts →
	Partial evidence “OTG Consulting: Your AI-Driven Technology Advisory OTG Consulting is a collective of top-tier telecom and technology executives helping businesses embrace the future.” Source: RevenueBase Database · checked Sep 22, 2026
20	Monmouth Telecom	Indirect evidence	Eatontown, NJ, United StatesHQ checked Sep 22, 2026	51-200	53 contacts →
	Indirect evidence “Established in 1995 as a premier Internet Service Provider in New Jersey, Monmouth Telecom has evolved into a comprehensive provider offering cutting-edge and cost-effective…” Source: RevenueBase Database · checked Sep 22, 2026
21	Laketec	Indirect evidence	North Olmsted, OH, United StatesHQ checked Sep 22, 2026	51-200	51 contacts →
	Indirect evidence “Laketec is a leading technology provider serving customers in Northern Ohio and throughout the U.S.” Source: RevenueBase Database · checked Sep 22, 2026
22	Ics- It, Voice & Video	Indirect evidence	San Antonio, TX, United StatesHQ checked Sep 22, 2026	51-200	50 contacts →
	Indirect evidence “Innovative Communication Systems is a full service, family owned, business IT services provider in Austin, Houston, and San Antonio that has been leading the way since 1981.” Source: RevenueBase Database · checked Sep 22, 2026
23	Parallel Technologies, Inc. Ohio	Indirect evidence	Dublin, OH, United StatesHQ checked Sep 22, 2026	51-200	46 contacts →
	Indirect evidence “We're a group of technology professionals that believe our most important work is to provide value in our relationships - with employees, vendor partners, and customers.” Source: RevenueBase Database · checked Sep 22, 2026
24	Teamsos Special Order Systems	Indirect evidence	Loomis, CA, United StatesHQ checked Sep 22, 2026	51-200	46 contacts →
	Indirect evidence “TEAMSOS provides innovative technology solutions that advance businesses and the lives of people everywhere.” Source: RevenueBase Database · checked Sep 22, 2026
25	Clearlyip	Indirect evidence	Appleton, WI, United StatesHQ checked Sep 22, 2026	201-500	45 contacts →
	Indirect evidence “14IP is a global software development and technology company specialising in telecommunications.” Source: RevenueBase Database · checked Sep 22, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: voip consulting companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names voip consulting companies.
Partial evidence: Its own public description names part of voip consulting companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name voip consulting companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 1,086 voip consulting companies based in the United States

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Voip consulting companies based in the United States at a glance

As of Sep 22, 2026

28.8%Verified-email coverage

8.0Average contacts per company

1-10Median size (employees)

3.7%Largest-city concentration · New York

Sep 22, 2026Page data refreshed

Companies by employee count

1-10

581

11-50

430

51-200

201-500

501-1,000

1,001-5,000

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 1,086 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among voip consulting companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in the United States whose own description of what they do matches “voip consulting companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names voip consulting companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among voip consulting companies, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 2,504 across the full list. 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 22, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Voip consulting companies by metro

Voip consulting companies in New York40

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names voip consulting companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many voip consulting companies are there based in the United States?

RevenueBase identified 1,086 voip consulting companies headquartered in the United States as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

ACS, headquartered in Lake Mary, tops this list with the largest team on record.

Which city has the most voip consulting companies?

New York leads with 40 headquartered companies, followed by Houston (19) and Dallas (15).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 2,504 verified decision-maker contacts tracked across these 1,086 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 22, 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 Smart Search, 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.