Company lists · Data refreshed September 2026

Top 21 IT operations consulting firms based in the United States

RevenueBase identified 22,597 IT operations consulting firms headquartered in the United States as of September 2026 and tracks 900,516 professional contacts across them, including 284,895 with verified work emails and 170,764 with mobile numbers. New York is the largest hub.

This list covers IT operations consulting firms 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, 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
22,597Companies
900,516Contacts tracked
284,895Verified emails
170,764Mobile numbers
Unlock all 22,597 companies Free signup · no credit card · 500 free credits

The 21 largest IT operations consulting firms based in the United States

Ranked by team size
Top 21 of 22,597 IT operations consulting firms based in the United States, ranked by team size, largest first. Data refreshed Sep 4, 2026. Evidence rates how directly each company's own description names IT operations 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
DXC TechnologyStrong evidence
Ashburn, VA, United StatesHQ checked Sep 4, 202610001+82,827

“DXC Technology helps global companies run their mission-critical systems and operations while modernizing IT, optimizing data architectures, and ensuring security and scalability…”

Source: company website · checked Sep 4, 2026
2
KyndrylIndirect evidence
New York City, NY, United StatesHQ checked Sep 4, 202610001+46,259

“We have the world’s best talent that design, run, and manage the most advanced and reliable technology infrastructure each day.”

Source: company website · checked Sep 4, 2026
3
EXLPartial evidence
New York, NJ, United StatesHQ checked Sep 4, 202610001+40,360

“Choosing a digital partner is about more than capabilities, it’s about collaboration and character.”

Source: company website · checked Sep 4, 2026
4Boston, MA, United StatesHQ checked Sep 4, 202610001+38,603

“Boston Consulting Group partners with leaders in business and society to tackle their most important challenges and capture their greatest opportunities.”

Source: company website · checked Sep 4, 2026
5
Ricoh Usa, INCIndirect evidence
Exton, CA, United StatesHQ checked Sep 4, 202610001+17,670

“At Ricoh, we bring people, processes, and technology together to make information work for you.”

Source: company website · checked Sep 4, 2026
6
ZSStrong evidence
Evanston, PA, United StatesHQ checked Sep 4, 202610001+17,029

“ZS is a management consulting and technology firm that partners with companies to improve life and how we live it.”

Source: company website · checked Sep 4, 2026
7
CDWIndirect evidence
Vernon Hills, IL, United StatesHQ checked Sep 4, 202610001+13,120

“At CDW, we know how to make technology work so people can do great things.”

Source: company website · checked Sep 4, 2026
8
GuidehouseIndirect evidence
Mclean, SD, United StatesHQ checked Sep 4, 202610001+12,933

“Guidehouse is a global AI-led professional services firm delivering advisory, technology, and managed services to the commercial and government sectors.”

Source: company website · checked Sep 4, 2026
9
Infinite Computer SolutionsIndirect evidence
Rockville, MD, United StatesHQ checked Sep 4, 202610001+12,923

“Infinite is a.”

Source: company website · checked Sep 4, 2026
10
Apex SystemsIndirect evidence
Glen Allen, VA, United StatesHQ checked Sep 4, 20261,001-5,00012,222

“Everforth Apex Systems, part of the Everforth ™ Network, is a leading global technology services company specializing in customizable industry-specific solutions that turns…”

Source: company website · checked Sep 4, 2026
11
MovateIndirect evidence
Plano, TX, United StatesHQ checked Sep 4, 202610001+12,175

“Movate is a digital technology and customer experience services company committed to disrupting the industry with boundless agility, human-centered innovation, and relentless…”

Source: company website · checked Sep 4, 2026
12
SlalomPartial evidence
Seattle, CA, United StatesHQ checked Sep 4, 202610001+9,963

“Slalom is a fiercely human business and technology consulting company that leads with outcomes to bring more value, in all ways, always.”

Source: company website · checked Sep 4, 2026
13
World Wide TechnologyIndirect evidence
Maryland Heights, AK, United StatesHQ checked Sep 4, 202610001+9,138

“We are thinkers and doers.”

Source: company website · checked Sep 4, 2026
14
HTC Global ServicesIndirect evidence
Troy, MI, United StatesHQ checked Sep 4, 202610001+8,895

“HTC Global Services Inc, founded in 1990, headquartered in Troy, Michigan, is a global provider of Information Technology and Business Process Services and Solutions.”

Source: company website · checked Sep 4, 2026
15
XceedancePartial evidence
Boston, MA, United StatesHQ checked Sep 4, 20261,001-5,0004,411

“Xceedance provides strategic operations support, technology, and data services to drive efficiencies for insurance organizations worldwide.”

Source: company website · checked Sep 4, 2026
16
AricentIndirect evidence
Santa Clara, CA, United StatesHQ checked Sep 4, 202610001+4,317

“Aricent is now Altran, delivering industry innovations at future speed.”

Source: company website · checked Sep 4, 2026
17
ETEAMIndirect evidence
Somerset, CA, United StatesHQ checked Sep 4, 2026n/a3,271

“For over 25 years, eTeam has been trusted by global organizations to lead high-stakes programs where execution matters as much as strategy.”

Source: company website · checked Sep 4, 2026
18
Visionet Systems INCIndirect evidence
Cranbury, NJ, United StatesHQ checked Sep 4, 202610001+3,113

“Visionet is a premier digital technology solutions company built on the premise of disruptive innovation.”

Source: company website · checked Sep 4, 2026
19Reston, VA, United StatesHQ checked Sep 4, 202610001+3,102

“Genpact Headstrong Capital Markets is a global consulting and IT services company with a specialized focus in capital markets.”

Source: company website · checked Sep 4, 2026
20
AHEADIndirect evidence
Chicago, WI, United StatesHQ checked Sep 4, 20261,001-5,0002,990

“AHEAD accelerates strategy into execution by engineering integrated solutions across infrastructure, applications, data, and security.”

Source: company website · checked Sep 4, 2026
21
ArmaninoPartial evidence
San Ramon, MO, United StatesHQ checked Sep 4, 20261,001-5,0002,952

“Founded as an alternative to the status quo, Armanino doesn’t just keep up with change, we embrace it.”

Source: company website · checked Sep 4, 2026

Showing 21 of 22,597 IT operations consulting firms based in the United States

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IT operations consulting firms based in the United States at a glance

As of Sep 4, 2026
1-10Median size (employees)
New YorkLargest hub · 859 HQs
170,764Contacts with mobile numbers
Sep 4, 2026Data refreshed

Companies by employee count

1-10
12,607
11-50
6,242
51-200
2,601
201-500
628
501-1,000
231
1,001-5,000
153
5,001-10,000
25
10001+
58

Verified emails by last verification

0–30
0
31–60
26,401
61–90
152,835
90–180
100,661
180+
4,998

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 operations 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 the United States whose own description of what they do matches “IT operations 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 operations consulting firms, 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 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, 284,895 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 operations consulting firms by metro

Frequently asked

How many IT operations consulting firms are there based in the United States?

RevenueBase identified 22,597 IT operations consulting firms 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?

DXC Technology, headquartered in Ashburn, tops this list with the largest team on record.

Which city has the most IT operations consulting firms?

New York leads with 859 headquartered companies, followed by Houston (536) and Chicago (451).

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 284,895 verified decision-maker contacts tracked across these 22,597 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.

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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.