Company lists · Data refreshed September 2026
Top 25 IT systems integration firms based in Washington, United States
RevenueBase identified 70 IT systems integration firms headquartered in Washington, United States as of September 2026 and tracks 822 professional contacts across them, including 301 with verified work emails. Across the United States, New York is the largest hub for this category (214 companies); Washington has 70.
This list covers IT systems integration firms headquartered in Washington, 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 28, 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.
The 25 largest IT systems integration firms based in Washington, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 108 contacts → | ||||
Partial evidence “Since 1996, Networking For Future, Inc.(NFF) has been engineering the backbone of mission-critical systems for government and enterprise clients.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 2 | 87 contacts → | ||||
Partial evidence “Acquired by SMX in late 2023, Creoal drives digital transformation through innovative IT solutions that leverage Oracle, Salesforce, and leading-edge technologies (e.g, AI, RPA…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 3 | 72 contacts → | ||||
Partial evidence “As organizations navigate the demands of today’s fast-moving IT landscape, Dantech stands as a trusted partner with the expertise to guide, implement, and optimize technology…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 4 | 47 contacts → | ||||
Partial evidence “Cascades Technologies is a Professional Consulting and IT Services firm with a commitment to personal and profession integrity.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 5 | 39 contacts → | ||||
Strong evidence “Avid Systems LLC is a woman-owned Information Technology Services firm based in Washington, DC, with over 20 years of proven expertise in delivering transformative IT solutions.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 6 | 37 contacts → | ||||
Indirect evidence “USP is a full-service technology firm built by seasoned utility experts, imparting knowledge for our customers to get the most out of their software investment that guarantees…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 7 | 30 contacts → | ||||
Indirect evidence “Compass Solutions, LLC is a leading Information Technology company that delivers technology solutions that fit the business model of its clients.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 8 | 26 contacts → | ||||
Strong evidence “Tricore Systems, LLC operates as an independent AV, Security, IT, and Electrical advisor and implementation firm.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 9 | 22 contacts → | ||||
Indirect evidence “Practical Solutions, Inc.(PSI) was founded on the principle that successful organizations have a balanced operation of technology, engineering, and management.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 10 | 20 contacts → | ||||
Partial evidence “Genesys Impact is a Technology Solutions Integrator & MSP firm, CMMC L2, ISO 9001:2015 and ISO/IEC 27001:2022 certified, helping federal agencies, healthcare systems, data…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 11 | 20 contacts → | ||||
Partial evidence “Sylver Rain Consulting is an IT solutions provider and proven expert in providing skilled consultants to meet any business need.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 12 | 20 contacts → | ||||
Partial evidence “JRH Consultants is an Information Technology company that provides cost effective services and solutions in Operations Management, Cyber Security Services, Cloud Integration and…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 13 | 20 contacts → | ||||
Indirect evidence “FWDthink is an information technology services firm that helps Government agencies and Fortune 100 companies implement technological solutions, expand revenue or ROI and train our…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 14 | 19 contacts → | ||||
Partial evidence “Keystone Integrated Solutions LLC is a full-service true system integrator and electrical construction contractor operating in the energy and manufacturing spaces.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 15 | 18 contacts → | ||||
Indirect evidence “TDC’s business expertise spans a range of industries, solutions and geographies with core capabilities in the areas of technology management consulting, public safety & homeland…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 16 | 11 contacts → | ||||
Indirect evidence “Excalibur Solutions is the necessary ingredient for your business to thrive.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 17 | 11 contacts → | ||||
Indirect evidence “Our CEO, whom was a government official within Department of Homeland Security (DHS) built Goldman Edwards on the foundation of security, innovation and service to our homeland.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 18 | 10 contacts → | ||||
Strong evidence “SIGNATURE TECHNOLOGY SOLUTIONS LLC (SigTechS) is an IT, Audiovisual and Security systems integrator, uniquely focused on technology solutions for government, corporate, and…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 19 | 9 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 20 | 7 contacts → | ||||
Partial evidence “Capitol Technology Solutions is a client-focused IT services and consulting firm.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 21 | 7 contacts → | ||||
Partial evidence “Converging Technology and Business At K Street Consulting, we're more than just IT support.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 22 | 6 contacts → | ||||
Partial evidence “Razavi Application Developers integrate enterprise level COTS and GOTS packages with information technology services and custom webenabled systems to help clients elevate the…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 23 | 6 contacts → | ||||
Partial evidence “Rapidiant Corporation is a leading Information Technology (IT) services firm providing enterprise consulting services to government and commercial clients.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 24 | 6 contacts → | ||||
Indirect evidence “Ramarc Solutions is a US and European Information Technology professional services firm with a wealthy knowledge base and experience in the fundamentals of Information Technology…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 25 | 5 contacts → | ||||
Partial evidence “Federal systems integrator for C6ISR as well as for business development consulting services for Federal Government contractors.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
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: IT systems integration firms. 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 IT systems integration firms.
- Partial evidence
- Its own public description names part of IT systems integration firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name IT systems integration firms. 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 70 IT systems integration firms based in Washington, United States
See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 301 reachable decision-makers.
Free signup · no credit card
IT systems integration firms based in Washington, United States at a glance
As of Sep 28, 2026Companies by employee count
Email recency for this list is measured across the whole United States list rather than for Washington, so it is reported there. Company counts and contact totals on this page are exact for Washington, over 70 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 systems integration firms, 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 Washington, United States whose own description of what they do matches “IT systems integration firms”. 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 IT systems integration firms), 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 IT systems integration firms, and records with no verified work email. Companies headquartered outside Washington 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, 301 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 28, 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 systems integration firms by metro in the United States
- IT systems integration firms in New York214
- IT systems integration firms in Houston180
- IT systems integration firms in Atlanta119
- IT systems integration firms in Chicago109
- IT systems integration firms in Dallas100
- IT systems integration firms in Austin98
- IT systems integration firms in Los Angeles88
- IT systems integration firms in Miami87
- IT systems integration firms in San Diego66
- IT systems integration firms in Irvine60
- IT systems integration firms in Irving60
- IT systems integration firms in Denver59
- IT systems integration firms in Charlotte53
- IT systems integration firms in San Francisco53
- IT systems integration firms in Tampa52
- IT systems integration firms in Seattle49
- IT systems integration firms in Plano48
- IT systems integration firms in Frisco47
- IT systems integration firms in Herndon47
- IT systems integration firms in Alpharetta45
- IT systems integration firms in Boston44
- IT systems integration firms in Indianapolis44
- IT systems integration firms in Orlando44
- IT systems integration firms in San Antonio44
- IT systems integration firms in Phoenix43
- IT systems integration firms in Columbus41
- IT systems integration firms in Las Vegas41
- IT systems integration firms in San Jose39
- IT systems integration firms in Princeton38
- IT systems integration firms in Reston36
- IT systems integration firms in Raleigh33
- IT systems integration firms in Scottsdale33
- IT systems integration firms in Alexandria32
- IT systems integration firms in Rockville32
- IT systems integration firms in Columbia31
- IT systems integration firms in Arlington30
- IT systems integration firms in Sacramento30
- IT systems integration firms in Wilmington30
- IT systems integration firms in Minneapolis29
- IT systems integration firms in Pittsburgh29
- IT systems integration firms in Santa Clara29
- IT systems integration firms in Ashburn28
- IT systems integration firms in Mclean27
- IT systems integration firms in Portland27
- IT systems integration firms in Baltimore26
- IT systems integration firms in Fairfax26
- IT systems integration firms in Louisville26
- IT systems integration firms in Philadelphia26
- IT systems integration firms in Richmond26
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 IT systems integration firms, 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 IT systems integration firms are there based in Washington, United States?
RevenueBase identified 70 IT systems integration firms headquartered in Washington, 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?
Networking For Future NFF, headquartered in Washington, tops this list with the largest team on record.
Which city in the United States has the most IT systems integration firms?
New York leads the United States with 214 headquartered companies, followed by Houston (180) and Atlanta (119). Washington has 70.
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 301 verified decision-maker contacts tracked across these 70 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 28, 2026.
Ready to reach these companies? Verified emails and direct dials for all 70 IT systems integration firms based in Washington, United States. Start with a free account, no credit card.
Download this list →Related lists
IT systems integration firms by geography
- IT systems integration firms based in Buenos Aires, Argentina
- IT systems integration firms based in Adelaide, Australia
- IT systems integration firms based in Brisbane, Australia
- IT systems integration firms based in Melbourne, Australia
- IT systems integration firms based in Perth, Australia
- IT systems integration firms based in Sydney, Australia
- IT systems integration firms based in Baku, Azerbaijan
- IT systems integration firms based in Dhaka, Bangladesh
- IT systems integration firms based in Barueri, Brazil
- IT systems integration firms based in Belo Horizonte, Brazil
- IT systems integration firms based in Campinas, Brazil
- IT systems integration firms based in Curitiba, Brazil
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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- IT systems integration firms based in Buenos Aires, Argentina
- IT systems integration firms based in Adelaide, Australia
- IT systems integration firms based in Brisbane, Australia
- IT systems integration firms based in Melbourne, Australia
- IT systems integration firms based in Perth, Australia
- IT systems integration firms based in Sydney, Australia