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Company lists · Data refreshed September 2026

Top 23 IT consulting firms based in Bellevue, United States

Compiled by the RevenueBase Data Team Data refreshed Sep 4, 2026 89 companies tracked

RevenueBase identified 89 IT consulting firms headquartered in Bellevue, United States as of September 2026 and tracks 5,923 professional contacts across them, including 1,076 with verified work emails. New York is the largest hub.

This list covers IT consulting firms headquartered in Bellevue, 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, how directly it supports the match, and when it was last checked. Data refreshed September 4, 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 HQ checked on every row Match evidence on every row Refreshed Sep 4, 2026 86% judged on-target in blind review
89Companies
5,923Contacts tracked
1,076Verified emails
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The 23 largest IT consulting firms based in Bellevue, United States

Ranked by team size
Top 23 of 89 IT consulting firms based in Bellevue, United States, ranked by team size, largest first. Data refreshed Sep 4, 2026. Evidence rates how directly each company's own description names IT consulting firms: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#CompanyHeadquartersEmployeesContacts
1
BeyondsoftStrong evidence
Bellevue, WA, United StatesHQ checked Sep 4, 2026501-1,0002,358

“Beyondsoft Consulting is a leading global mid-sized business IT and consulting company that combines modern technologies and proven methodologies to tailor solutions that move…”

Source: company website · checked Sep 4, 2026
2
ConfizPartial evidence
Bellevue, WA, United StatesHQ checked Sep 4, 2026501-1,000709

“Confiz is a global technology solutions and consulting company, empowering forward-thinking enterprises, including Fortune 100 and Fortune 500 companies, to strengthen and…”

Source: company website · checked Sep 4, 2026
3
InvisoPartial evidence
Bellevue, WA, United StatesHQ checked Sep 4, 2026201-500239

“Inviso is a growing mid-size technology consulting firm that offers a wide range of business services for small to enterprise organizations across a wide range of industries.”

Source: company website · checked Sep 4, 2026
4
Software Engineering ServicesStrong evidence
Bellevue, NE, United StatesHQ checked Sep 4, 202651-200234

“SES is a cutting edge provider of IT consulting services.”

Source: company website · checked Sep 4, 2026
5
CSI InterfusionPartial evidence
Bellevue, WA, United StatesHQ checked Sep 4, 202651-200211

“CSI Interfusion is a global IT firm specializing Microsoft technologies.”

Source: company website · checked Sep 4, 2026
6
Redcloud ConsultingPartial evidence
Bellevue, WA, United StatesHQ checked Sep 4, 2026201-500196

“RedCloud is a business and technology consulting firm providing local companies with expert-level support for over two decades.”

Source: company website · checked Sep 4, 2026
7
Prowess ConsultingStrong evidence
Bellevue, WA, United StatesHQ checked Sep 4, 202651-200133

“Prowess Consulting is a Seattle-based technology services firm specializing in Agentic AI, Data and AI Consulting, IT and Cloud Infrastructure, Software Development and Testing…”

Source: company website · checked Sep 4, 2026
8
BibliosoStrong evidence
Bellevue, WA, United StatesHQ checked Sep 4, 2026201-500101

“We started more than a decade ago focusing on supporting companies in the Pacific Northwest with IT consulting and documentation projects.”

Source: company website · checked Sep 4, 2026
9
Raining Virtue INCStrong evidence
Bellevue, WA, United StatesHQ checked Sep 4, 202651-20067

“The world doesn’t need another IT consulting firm.”

Source: company website · checked Sep 4, 2026
10
Inabia Solutions And Consulting, INCIndirect evidence
Bellevue, WA, United StatesHQ checked Sep 4, 202651-20062

“WHO Founded in 2006 and headquartered in Redmond, WA.”

Source: company website · checked Sep 4, 2026
11
Hi-Tech TalentsStrong evidence
Bellevue, WA, United StatesHQ checked Sep 4, 2026201-50054

“We have been working in the IT consulting business for more than 10 years, and this branch specifically serves the technical consulting needs in Seattle area.”

Source: company website · checked Sep 4, 2026
12
The AES GroupPartial evidence
Bellevue, WA, United StatesHQ checked Sep 4, 202651-20035

“At The AES Group, we believe technology is most powerful when it brings people, ideas and opportunity together.”

Source: company website · checked Sep 4, 2026
13
Mentis SystemsPartial evidence
Bellevue, WA, United StatesHQ checked Sep 4, 20261,001-5,00030

“Mentis Systems is an US based global IT Services Company with focus on Clients’ Technology & Business Objectives.”

Source: company website · checked Sep 4, 2026
14
Amplify Consulting Partners NOW SparqPartial evidence
Bellevue, WA, United StatesHQ checked Sep 4, 202651-20029

“Amplify Consulting Partners is a data-first consulting company trusted by Fortune 500 businesses to deliver high-impact professional services across the technology ecosystem-from…”

Source: company website · checked Sep 4, 2026
15
Virtuetech INCIndirect evidence
Bellevue, WA, United StatesHQ checked Sep 4, 202611-5023
Source: company website · checked Sep 4, 2026
16
Rgen ConsultingIndirect evidence
Bellevue, WA, United StatesHQ checked Sep 4, 202611-5018

“rGen, Inc.”

Source: company website · checked Sep 4, 2026
17
AxeleratePartial evidence
Bellevue, WA, United StatesHQ checked Sep 4, 202651-20017

“Axelerate is a Bellevue WA based management and technology consulting company that delivers comprehensive technology services and solutions to help clients achieve measurable…”

Source: company website · checked Sep 4, 2026
18
Fiduciary Technology SolutionsIndirect evidence
Bellevue, WA, United StatesHQ checked Sep 4, 202651-20015

“From our base in Bellevue, Fiduciary Tech has been helping enterprises unlock the full potential of their technology investments since 2015.”

Source: company website · checked Sep 4, 2026
19
Teal Group Technologies, INCStrong evidence
Bellevue, WA, United StatesHQ checked Sep 4, 202611-5013

“Teal Group Technologies provides IT consulting, technology solution and support services for small and medium-sized businesses.”

Source: company website · checked Sep 4, 2026
20
Locate Software, INCIndirect evidence
Bellevue, WA, United StatesHQ checked Sep 4, 202611-5010

“Locate Inc.”

Source: company website · checked Sep 4, 2026
21
Samay ConsultingPartial evidence
Bellevue, WA, United StatesHQ checked Sep 4, 202611-509

“Samay Consulting has the vision and connected capabilities to help business leaders envision, implement and realize the benefits of digital transformation.”

Source: company website · checked Sep 4, 2026
22
Rubberband VillageIndirect evidence
Bellevue, WA, United StatesHQ checked Sep 4, 202611-507

“At Rubberband Village, we help businesses snap out of the same old track.”

Source: company website · checked Sep 4, 2026
23
Trillium Professional ServicesIndirect evidence
Bellevue, WA, United StatesHQ checked Sep 4, 20261-107

“Trillium Professional Services helps organizations maximize their information resources and achieve their strategic goals by providing a holistic approach to information…”

Source: company website · checked Sep 4, 2026

Showing 23 of 89 IT consulting firms based in Bellevue, United States

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IT consulting firms based in Bellevue, United States at a glance

As of Sep 4, 2026
11-50Median size (employees)
New YorkLargest hub · 1002 HQs
Contacts with mobile numbers
Sep 4, 2026Data refreshed

Companies by employee count

1-10
28
11-50
27
51-200
20
201-500
11
501-1,000
2
1,001-5,000
1

Email recency for this list is measured across the whole United States list rather than this city, so it is reported there. Company counts and contact totals on this page are exact for Bellevue, over 89 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 IT consulting firms, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Companies headquartered in Bellevue, United States whose own description of what they do matches “IT consulting firms”. Matching reads each company's description, not its industry code or its name.
What we exclude
Companies whose own description does not clearly place them among IT consulting firms, and records with no verified work email. Companies headquartered outside Bellevue 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 an evidence 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, 1,076 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 4, 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.

IT consulting firms by metro in the United States

Frequently asked

How many IT consulting firms are there based in Bellevue, United States?

RevenueBase identified 89 IT consulting firms headquartered in Bellevue, 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?

Beyondsoft, headquartered in Bellevue, tops this list with the largest team on record.

Which city has the most IT consulting firms?

New York leads with 1002 headquartered companies, followed by Houston (627) and Dallas (504).

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 1,076 verified decision-maker contacts tracked across these 89 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 4, 2026.

Ready to reach these companies? Verified emails and direct dials for all 89 IT consulting firms based in Bellevue, United States. Start with a free account, no credit card.

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Related lists

Browse: Companies home · IT consulting firms in United States · All United States lists · All IT consulting firms lists · New lists

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.

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