Company lists · Data refreshed September 2026

Top 25 Defense contractor IT consultants based in Columbia, United States

RevenueBase identified 76 defense contractor IT consultants headquartered in Columbia, United States as of September 2026 and tracks 3,137 professional contacts across them, including 1,108 with verified work emails. Across the United States, Washington is the largest hub for this category (197 companies); Columbia has 76.

This list covers defense contractor IT consultants headquartered in Columbia, 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 28, 2026 86% judged on-target in blind review
76Companies
3,137Contacts tracked
1,108Verified emails
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The 25 largest defense contractor IT consultants based in Columbia, United States

Ranked by team size
Top 25 of 76 defense contractor IT consultants based in Columbia, United States, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to defense contractor IT 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
1Indirect evidenceColumbia, MD, United StatesHQ checked Sep 28, 20261,001-5,000611 contacts →

Indirect evidence

“Since 1988, PSI teams have provided our government customers with innovative, cost effective solutions that solve today’s complex challenges, improve operational efficiencies, and…”

Source: RevenueBase Database · checked Sep 28, 2026
2Indirect evidenceColumbia, MD, United StatesHQ checked Sep 28, 202651-200216 contacts →

Indirect evidence

“Engineering.”

Source: RevenueBase Database · checked Sep 28, 2026
3Partial evidenceColumbia, MD, United StatesHQ checked Sep 28, 202651-200138 contacts →

Partial evidence

“FTSG was founded with the idea of building a company in which IT professionals have the 'Freedom' to be creative and innovative.”

Source: RevenueBase Database · checked Sep 28, 2026
4Indirect evidenceColumbia, MD, United StatesHQ checked Sep 28, 202651-200119 contacts →

Indirect evidence

“Founded in 1991, and Headquartered in Columbia, MD, Systems Engineering Group, Inc.(SEG) is a wholly-owned subsidiary of Astrion.”

Source: RevenueBase Database · checked Sep 28, 2026
5Partial evidenceColumbia, MD, United StatesHQ checked Sep 28, 202651-200119 contacts →

Partial evidence

“SealingTech, a Parsons Company, rapidly delivers innovative, agile cybersecurity solutions that modernize, protect, and defend the networks and systems of the federal government…”

Source: RevenueBase Database · checked Sep 28, 2026
6Indirect evidenceColumbia, MD, United StatesHQ checked Sep 28, 2026201-500106 contacts →

Indirect evidence

“Welcome to Synergy ECP, the most trusted partner in navigating the complex landscape of cybersecurity and digital transformation.”

Source: RevenueBase Database · checked Sep 28, 2026
7Strong evidenceColumbia, MD, United StatesHQ checked Sep 28, 2026201-50095 contacts →

Strong evidence

“GP Strategies Government Solutions, a subsidiary of GP Strategies Corporation, specializes in supporting federal, state, and local government agencies, defense contractors and…”

Source: RevenueBase Database · checked Sep 28, 2026
8Indirect evidenceColumbia, MD, United StatesHQ checked Sep 28, 202651-20094 contacts →

Indirect evidence

“We build teams of AI engineers, developers, analysts, designers, and data scientists to create and take responsibility for the success of critical intelligence projects.”

Source: RevenueBase Database · checked Sep 28, 2026
9Partial evidenceColumbia, MD, United StatesHQ checked Sep 28, 2026201-50088 contacts →

Partial evidence

“SilverEdge, An SAIC Company, is a next generation provider of innovative and proprietary cybersecurity, software, and intelligence solutions for the Defense and Intelligence…”

Source: RevenueBase Database · checked Sep 28, 2026
10Indirect evidenceColumbia, MD, United StatesHQ checked Sep 28, 202651-20087 contacts →

Indirect evidence

“Quotient Inc.”

Source: RevenueBase Database · checked Sep 28, 2026
11Indirect evidenceColumbia, MD, United StatesHQ checked Sep 28, 202651-20075 contacts →

Indirect evidence

“We are always striving to "Bring Digital Transformation to the Fight".”

Source: RevenueBase Database · checked Sep 28, 2026
12Indirect evidenceColumbia, MD, United StatesHQ checked Sep 28, 202651-20074 contacts →

Indirect evidence

“Next Phase Solutions and Services (Next Phase) is rethinking problem solving.”

Source: RevenueBase Database · checked Sep 28, 2026
13Partial evidenceColumbia, MD, United StatesHQ checked Sep 28, 202651-20072 contacts →

Partial evidence

“SCD exists to provide innovative, technologically superior information technology solutions to business professionals and defense agencies in the Baltimore, Washington and…”

Source: RevenueBase Database · checked Sep 28, 2026
14Indirect evidenceColumbia, MD, United StatesHQ checked Sep 28, 202651-20058 contacts →

Indirect evidence

“JASINT is a Maryland based Limited Liability Company that began its business operations and staffing in July 2007.”

Source: RevenueBase Database · checked Sep 28, 2026
15Partial evidenceColumbia, MD, United StatesHQ checked Sep 28, 202651-20058 contacts →

Partial evidence

“Alliance Global Tech Inc.(AGT), a minority-owned and SBA Small Business Certified 8(a) CMMI Level 3 Service & Development IT services company, stands at the forefront of…”

Source: RevenueBase Database · checked Sep 28, 2026
16Strong evidenceColumbia, MD, United StatesHQ checked Sep 28, 202651-20057 contacts →

Strong evidence

“Clear Ridge Defense, headquartered in Columbia, MD, is a boutique cyberspace operations defense contracting firm that specializes in acquiring full-spectrum cyberspace talent in…”

Source: RevenueBase Database · checked Sep 28, 2026
17Indirect evidenceColumbia, MD, United StatesHQ checked Sep 28, 202651-20056 contacts →

Indirect evidence

“KTG is an SBA-verified Service-Disabled, Veteran-Owned Small Business with more than two decades of proven success supporting the United States, federal, state, and local…”

Source: RevenueBase Database · checked Sep 28, 2026
18Partial evidenceColumbia, MD, United StatesHQ checked Sep 28, 202651-20055 contacts →

Partial evidence

“Whether you’re seeking IT solutions or telecommunications and cabling, Visual Connections offers a spectrum of services to meet the needs of government and commercial clients.”

Source: RevenueBase Database · checked Sep 28, 2026
19Indirect evidenceColumbia, MD, United StatesHQ checked Sep 28, 2026201-50047 contacts →

Indirect evidence

“PCI is now a BigBear.ai company.”

Source: RevenueBase Database · checked Sep 28, 2026
20Indirect evidenceColumbia, MD, United StatesHQ checked Sep 28, 202651-20045 contacts →

Indirect evidence

“Avid Technology Professionals, LLC (ATP) is a premiere provider of software and systems engineering, and acquisition program management services for the community.”

Source: RevenueBase Database · checked Sep 28, 2026
21Indirect evidenceColumbia, MD, United StatesHQ checked Sep 28, 202611-5037 contacts →

Indirect evidence

“Legato, LLC is.”

Source: RevenueBase Database · checked Sep 28, 2026
22Indirect evidenceColumbia, MD, United StatesHQ checked Sep 28, 202611-5033 contacts →

Indirect evidence

“2HB Software Design, Inc, d/b/a 2HB Incorporated, was founded in 1994 and has established itself as a premier service provider for over 29+ years supporting the intelligence…”

Source: RevenueBase Database · checked Sep 28, 2026
23Partial evidenceColumbia, MD, United StatesHQ checked Sep 28, 202651-20030 contacts →

Partial evidence

“SRC Technologies, INC provides information technology (IT) consultation services to government agencies and corporations alike, specializing in secure computing services.”

Source: RevenueBase Database · checked Sep 28, 2026
24Strong evidenceColumbia, MD, United StatesHQ checked Sep 28, 202611-5022 contacts →

Strong evidence

“Columbia Technology Partners is a National Security and Defense contractor committed to solving intricate and sensitive technology issues which face corporations and federal…”

Source: RevenueBase Database · checked Sep 28, 2026
25Indirect evidenceColumbia, MD, United StatesHQ checked Sep 28, 202611-5019 contacts →

Indirect evidence

“C2 Technology Solutions is a small business with global perspective, offering insightful and transformational expertise to system and software engineering, architecture design…”

Source: RevenueBase Database · checked Sep 28, 2026

Showing 25 of 76 defense contractor IT consultants based in Columbia, United States

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Defense contractor IT consultants based in Columbia, United States at a glance

As of Sep 28, 2026
35.3%Verified-email coverage
41.3Average contacts per company
11-50Median size (employees)
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
15
11-50
26
51-200
29
201-500
4
501-1,000
1
1,001-5,000
1

Email recency for this list is measured across the whole United States list rather than for Columbia, so it is reported there. Company counts and contact totals on this page are exact for Columbia, over 76 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 defense contractor IT 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 Columbia, United States whose own description of what they do matches “defense contractor IT 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 defense contractor IT 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 defense contractor IT consultants, and records with no verified work email. Companies headquartered outside Columbia 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, 1,108 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.

Defense contractor IT consultants by metro in the United States

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 defense contractor IT 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 defense contractor IT consultants are there based in Columbia, United States?

RevenueBase identified 76 defense contractor IT consultants headquartered in Columbia, 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?

Planned Systems International, headquartered in Columbia, tops this list with the largest team on record.

Which city in the United States has the most defense contractor IT consultants?

Washington leads the United States with 197 headquartered companies, followed by Reston (137) and Arlington (121). Columbia has 76.

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 1,108 verified decision-maker contacts tracked across these 76 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.

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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.