Company lists · Data refreshed September 2026
Top 25 Defense acquisition consulting firms worldwide
RevenueBase identified 5,187 defense acquisition consulting firms worldwide as of September 2026 and tracks 42,029 professional contacts across them, including 11,531 with verified work emails. The United States is the largest market and Washington the largest hub.
This list covers defense acquisition consulting firms worldwide, 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. Country and city lists for defense acquisition consulting firms follow the table.
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 defense acquisition consulting firms worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 611 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, 2026Thanks. The Data Team will review it. | |||||
| 2 | 546 contacts → | ||||
Partial evidence “DLC is an award-winning industry leader in Finance, Accounting, Program Management & Process Improvement Consulting.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 3 | 350 contacts → | ||||
Indirect evidence “Deep Water Point & Associates is composed of industry veterans and government experts who dedicate their expertise to maximize our clients’ competitive edge.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 4 | 335 contacts → | ||||
Partial evidence “Technomics is a growing, employee-owned consulting firm that specializes in the exciting and challenging field of weapon system cost analysis.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 5 | 313 contacts → | ||||
Indirect evidence “ATS – 40 Years: Advancing Projects, Boosting Profits, and Cutting Costs For over 40 years, ATS has partnered with organizations worldwide to deliver outstanding results.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 6 | 312 contacts → | ||||
Indirect evidence “Based in Sterling, Virginia, iQuasar LLC, with over 20 years of experience, we help small and medium businesses grow in the federal marketplace through Proposal Development…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 7 | 299 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 8 | 285 contacts → | ||||
Indirect evidence “Welcome to H&Z We offer more than successful strategy development.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 9 | 273 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 10 | 273 contacts → | ||||
Indirect evidence “AVIAN is a purpose-built employee-owned company that thrives on creating solutions for complex challenges.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 11 | 264 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 12 | 263 contacts → | ||||
Indirect evidence “Traditional we are not.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 13 | 249 contacts → | ||||
Partial evidence “An integrated and advanced consulting entity concerned with supporting the governmental, private and non-profit sectors with appropriate contractual solutions and meeting their…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 14 | 230 contacts → | ||||
Partial evidence “LCG provides consulting services, using their multidisciplinary skills in the areas of strategic and operational management, information systems, management support, business…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 15 | 221 contacts → | ||||
Partial evidence “Sayres Defense has been providing excellence in service to the federal government since 2001.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 16 | 215 contacts → | ||||
Indirect evidence “PeersGroup est un cabinet de conseil en Management spécialisé en Performance Opérationnelle.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 17 | 213 contacts → | ||||
Indirect evidence “Kalman & Company, Inc.(Kalman), headquartered in Virginia Beach, VA, was founded by Barbara and Walter Kalman in 1986.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 18 | 213 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 19 | 212 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 20 | 195 contacts → | ||||
Strong evidence “Since 1992, IBSS, a woman-owned small business, has provided transformational consulting services to the Federal defense, civilian, and commercial sectors.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 21 | 194 contacts → | ||||
Indirect evidence “Strategic Alliance Business Group (SABG) is privately owned professional services company that is both a Service Disabled Veteran Owned and Women Owned Small Business.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 22 | 192 contacts → | ||||
Indirect evidence “For nearly two decades, ASI Government has served as a trusted advisor to government leaders seeking to improve mission performance, enhance organizational effectiveness and drive…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 23 | 190 contacts → | ||||
Indirect evidence “At Infosys Portland, we’re on a mission to lead our clients' procurement and supply chain functions into the future, while delivering value today.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 24 | 177 contacts → | ||||
Indirect evidence “شركة الزومان والفهد والحجاج للاستشارات المهنية” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 25 | 177 contacts → | ||||
Partial evidence “Solution One Industries is a premier leader in the delivery of professional, logistical, and engineering solution for federal, state, local governments defense / aerospace…” 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: defense acquisition consulting 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 defense acquisition consulting firms.
- Partial evidence
- Its own public description names part of defense acquisition consulting firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name defense acquisition consulting 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 5,187 defense acquisition consulting firms worldwide
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Defense acquisition consulting firms worldwide at a glance
As of Sep 28, 2026Companies by employee count
Email recency is reported on each country list linked below.
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 acquisition consulting 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.
- Coverage
- Every country. Country and city lists for defense acquisition consulting firms are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “defense acquisition consulting 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 defense acquisition consulting 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 defense acquisition consulting firms, and records with no verified work email.
- 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, 11,531 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 acquisition consulting firms by location
27 lists · largest firstEvery Defense acquisition consulting firms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Defense acquisition consulting firms based in the United States2,073
- Defense acquisition consulting firms based in Brazil274
- Defense acquisition consulting firms based in France245
- Defense acquisition consulting firms based in the United Kingdom197
- Defense acquisition consulting firms based in Australia163
- Defense acquisition consulting firms based in Canada128
- Defense acquisition consulting firms based in Germany85
- Defense acquisition consulting firms based in the Netherlands80
- Defense acquisition consulting firms based in Italy61
- Defense acquisition consulting firms based in Sweden61
- Defense acquisition consulting firms based in India57
- Defense acquisition consulting firms based in Spain56
- Defense acquisition consulting firms based in Switzerland36
- Defense acquisition consulting firms based in Chile32
- Defense acquisition consulting firms based in Saudi Arabia30
Cities
- Defense acquisition consulting firms based in Washington, United States129
- Defense acquisition consulting firms based in Paris, France86
- Defense acquisition consulting firms based in Arlington, United States67
- Defense acquisition consulting firms based in London, United Kingdom61
- Defense acquisition consulting firms based in Alexandria, United States52
- Defense acquisition consulting firms based in Atlanta, United States36
- Defense acquisition consulting firms based in Reston, United States33
- Defense acquisition consulting firms based in Huntsville, United States28
- Defense acquisition consulting firms based in Mclean, United States27
- Defense acquisition consulting firms based in Fairfax, United States26
- Defense acquisition consulting firms based in Vienna, United States26
- Defense acquisition consulting firms based in Sydney, Australia25
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 acquisition consulting 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 defense acquisition consulting firms are there worldwide?
RevenueBase identified 5,187 defense acquisition consulting firms worldwide 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 country has the most defense acquisition consulting firms?
The United States leads with 2,073 companies, followed by Brazil (274) and France (245). Every defense acquisition consulting firms list by country and city is linked on this page.
Which city has the most defense acquisition consulting firms?
Washington leads with 129 headquartered companies, followed by Paris (86) and Arlington (67).
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 11,531 verified decision-maker contacts tracked across these 5,187 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.