Company lists · Data refreshed September 2026

Top 18 Telecommunications consultants based in Seattle, United States

RevenueBase identified 41 telecommunications consultants headquartered in Seattle, United States as of September 2026 and tracks 333 professional contacts across them, including 181 with verified work emails. Across the United States, New York is the largest hub for this category (176 companies); Seattle has 41.

This list covers telecommunications consultants headquartered in Seattle, 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 30, 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 30, 2026 86% judged on-target in blind review
41Companies
333Contacts tracked
181Verified emails
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The 18 largest telecommunications consultants based in Seattle, United States

Ranked by team size
Top 18 of 41 telecommunications consultants based in Seattle, United States, ranked by team size, largest first. Data refreshed Sep 30, 2026. RevenueBase Smart Search rates how each company's information relates to telecommunications consultants: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceSeattle, WA, United StatesHQ checked Sep 30, 2026201-500188 contacts →

Partial evidence

“Hargis Engineers is a mechanical, electrical, telecommunications, security, energy consulting engineering, and commissioning firm.”

Source: RevenueBase Database · checked Sep 30, 2026
2Indirect evidenceSeattle, WA, United StatesHQ checked Sep 30, 202611-5033 contacts →

Indirect evidence

“In a time of evolving technologies, Core One Consulting keeps telecom companies moving forward.”

Source: RevenueBase Database · checked Sep 30, 2026
3Strong evidenceSeattle, WA, United StatesHQ checked Sep 30, 20261-1010 contacts →

Strong evidence

“Telecommunications consultant with years of experience in complex solutions.”

Source: RevenueBase Database · checked Sep 30, 2026
4Partial evidenceSeattle, WA, United StatesHQ checked Sep 30, 202611-507 contacts →

Partial evidence

“Forge Technology Advisors provides a customized suite of IT and Telecommunications consulting services-including Cybersecurity, SASE, UCaaS, CCaaS, and Networking-tailored to meet…”

Source: RevenueBase Database · checked Sep 30, 2026
5Partial evidenceSeattle, WA, United StatesHQ checked Sep 30, 202611-507 contacts →

Partial evidence

“TFWB Engineers formerly Travis, Fitzmaurice & Associates is an electrical, telecommunications, and security design consulting firm.”

Source: RevenueBase Database · checked Sep 30, 2026
6Indirect evidenceSeattle, WA, United StatesHQ checked Sep 30, 20261-104 contacts →

Indirect evidence

“Enetics Networks was founded in 1998 to provide smart, cost-effective technology solutions for businesses throughout Washington state.”

Source: RevenueBase Database · checked Sep 30, 2026
7Indirect evidenceSeattle, WA, United StatesHQ checked Sep 30, 202611-504 contacts →

Indirect evidence

“All Phase Communications provides “Risk Free” Voice over Internet Protocol (VoIP) solutions enabling our customers to reduce costs and gain competitive advantage.”

Source: RevenueBase Database · checked Sep 30, 2026
8Indirect evidenceSeattle, WA, United StatesHQ checked Sep 30, 20261-103 contacts →

Indirect evidence

“CCNG’s Purpose: To assist Multi-Dwelling Unit (“MDU”) owners/stakeholders in making the BEST decision for THEIR community regarding video, Internet, and phone (i.e, “telecom”)…”

Source: RevenueBase Database · checked Sep 30, 2026
9Partial evidenceSeattle, WA, United StatesHQ checked Sep 30, 20261-103 contacts →

Partial evidence

“OLI provides cutting-edge communications solutions and executive-level consultancy tailored for the aerospace and space industries.”

Source: RevenueBase Database · checked Sep 30, 2026
10Indirect evidenceSeattle, WA, United StatesHQ checked Sep 30, 20261-102 contacts →

Indirect evidence

“Senza Fili provides advisory support on wireless technologies and services.”

Source: RevenueBase Database · checked Sep 30, 2026
11Indirect evidenceSeattle, WA, United StatesHQ checked Sep 30, 20261-102 contacts →

Indirect evidence

“Urban-Technology Group is a Seattle-based independent consulting firm, focused on helping companies leverage technology to enhance business operations, maximize internal resources…”

Source: RevenueBase Database · checked Sep 30, 2026
12Indirect evidenceSeattle, WA, United StatesHQ checked Sep 30, 20261-102 contacts →

Indirect evidence

“When buying business phone and Internet, you don't have to endure inexperience and high-pressure sales methods.”

Source: RevenueBase Database · checked Sep 30, 2026
13Indirect evidenceSeattle, WA, United StatesHQ checked Sep 30, 20261-102 contacts →

Indirect evidence

“InterSub is a consulting company offering design, engineering, and operations management services to the subsea cable industry.”

Source: RevenueBase Database · checked Sep 30, 2026
14Indirect evidenceSeattle, WA, United StatesHQ checked Sep 30, 20261-101 contacts →

Indirect evidence

“Networking consulting company supporting ISPs, cloud, enterprise, campus, and small office networks.”

Source: RevenueBase Database · checked Sep 30, 2026
15Indirect evidenceSeattle, WA, United StatesHQ checked Sep 30, 20261-101 contacts →

Indirect evidence

“We focus on technology solutions that are appropriate for where your company is now, but will also adapt to growth and change in your business and industry.”

Source: RevenueBase Database · checked Sep 30, 2026
16Indirect evidenceSeattle, United StatesHQ checked Sep 30, 20261-101 contacts →

Indirect evidence

“We help you develop the technology strategy to achieve your business goals.”

Source: RevenueBase Database · checked Sep 30, 2026
17Indirect evidenceSeattle, WA, United StatesHQ checked Sep 30, 20261-101 contacts →

Indirect evidence

“Sommita Technology Group LLC is a Trusted Information Technology Services Advisor.”

Source: RevenueBase Database · checked Sep 30, 2026
18Indirect evidenceSeattle, WA, United StatesHQ checked Sep 30, 20261-101 contacts →

Indirect evidence

“Our services cover a broad spectrum of functions that can help advance your business with intelligent insights, and the benefit of our network within the industry.”

Source: RevenueBase Database · checked Sep 30, 2026

Showing 18 of 41 telecommunications consultants based in Seattle, United States

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Telecommunications consultants based in Seattle, United States at a glance

As of Sep 30, 2026
54.4%Verified-email coverage
8.1Average contacts per company
1-10Median size (employees)
Sep 30, 2026Page data refreshed

Companies by employee count

1-10
29
11-50
11
201-500
1

Email recency for this list is measured across the whole United States list rather than for Seattle, so it is reported there. Company counts and contact totals on this page are exact for Seattle, over 41 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 telecommunications consultants, 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 Seattle, United States whose own description of what they do matches “telecommunications consultants”. 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 telecommunications consultants), 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 telecommunications consultants, and records with no verified work email. Companies headquartered outside Seattle 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, 181 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 30, 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.

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 telecommunications consultants, 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 telecommunications consultants are there based in Seattle, United States?

RevenueBase identified 41 telecommunications consultants headquartered in Seattle, 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?

Hargis Engineers, headquartered in Seattle, tops this list with the largest team on record.

Which city in the United States has the most telecommunications consultants?

New York leads the United States with 176 headquartered companies, followed by Houston (123) and Atlanta (83). Seattle has 41.

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 181 verified decision-maker contacts tracked across these 41 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 30, 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.