Company lists · Data refreshed September 2026
Top 25 Federal consulting firms based in Vienna, United States
RevenueBase identified 56 federal consulting firms headquartered in Vienna, United States as of September 2026 and tracks 1,963 professional contacts across them, including 491 with verified work emails. Across the United States, Washington is the largest hub for this category (361 companies); Vienna has 56.
This list covers federal consulting firms headquartered in Vienna, 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 14, 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 federal consulting firms based in Vienna, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 256 contacts → | ||||
Indirect evidence “IntelliDyne is a leading government information technology firm enabling better mission performance through innovative technology solutions.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 2 | 226 contacts → | ||||
Indirect evidence “Radiant Digital delivers solutions that help our clients become more agile, efficient, competitive, and innovative.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 3 | 144 contacts → | ||||
Indirect evidence “XLA is an award-winning government services provider with 250 employees both domestically and internationally.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 4 | 143 contacts → | ||||
Indirect evidence “Horizon Industries is an IT services corporation serving Clients across the U.S.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 5 | 127 contacts → | ||||
Partial evidence “ITCON Services is a dynamic consulting company that provides innovative technology and management solutions to its customers.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 6 | 108 contacts → | ||||
Indirect evidence “Serco Inc.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 7 | 103 contacts → | ||||
Indirect evidence “Softtek Government Solutions, formerly Aveshka, a Softtek Company, supports U.S.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 8 | 80 contacts → | ||||
Partial evidence “Heartland Consulting provides management consulting, information technology, and financial management services to the U.S.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 9 | 70 contacts → | ||||
Partial evidence “Capital Edge is the largest consulting firm exclusively dedicated to government contractors and grant recipients.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 10 | 46 contacts → | ||||
Indirect evidence “Alltech is an award winning provider of IT services headquartered in the Washington DC Metro area with nationwide project capabilities.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 11 | 45 contacts → | ||||
Partial evidence “Since 2004 we’ve helped our federal clients get the mission of government done.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 12 | 39 contacts → | ||||
Partial evidence “Headquartered in Tysons Corner, Virginia, EDC Consulting LLC (EDC) is a professional services company that provides industry-leading Business Systems and Information Technology…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 13 | 38 contacts → | ||||
Partial evidence “Supreme Tech Solutions, LLC (STS) was founded in 2003, in order to bridge the gap for Automated Data Processing (ADP) consulting services to its corporate clients.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 14 | 24 contacts → | ||||
Indirect evidence “Certified Public Accountants And Other Experts With the Knowledge and Experience You Need Experienced professionals.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 15 | 22 contacts → | ||||
Partial evidence “M1 Technology, LLC is a technology consulting firm specializing in delivering quality software systems to meet our client's mission needs.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 16 | 20 contacts → | ||||
Partial evidence “OmniSolve is a technology services and management consulting company that is built around the concept of giving our clients value and helping them to better achieve their goals.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 17 | 13 contacts → | ||||
Indirect evidence “SLS Solutions Inc, is a fast growing SBA 8(a), 8(a) STARS GWAC, MBE, WBE, WOSB vendor providing industry leading solutions that enable organizations achieve their mission and…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 18 | 12 contacts → | ||||
Partial evidence “Intellizant is a management and technology consulting firm solving our clients most challenging problems and enabling them to become highly effective and efficient government…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 19 | 10 contacts → | ||||
Partial evidence “WIN-CENTERED MISSION The d8 Group's mission is to revolutionize the Business Development processes of winning Federal Government contract awards.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 20 | 8 contacts → | ||||
Indirect evidence “PACE is an SBA 8(a) and SDVOSB company with exceptional expertise in the Acquisition and IT domains.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 21 | 7 contacts → | ||||
Indirect evidence “Global TechPro is a CMMI Level 3, multi-disciplined, professional IT services firm.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 22 | 5 contacts → | ||||
Indirect evidence “Conscious Networks provides a Holistic Approach to Technology for your business.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 23 | 4 contacts → | ||||
Partial evidence “LinkVisum Consulting Group provides a range of management consulting and technology services to government agencies and private industry.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 24 | 3 contacts → | ||||
Indirect evidence “Right Start helps organizations optimize their products and services, improve their financial results and solidify their competitive position in the marketplace.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 25 | 3 contacts → | ||||
Partial evidence “Global Integrated Management Consulting (Global IMC) is established to provide integrated management and information technology consulting services to our clients.” Source: RevenueBase Database · checked Sep 14, 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: federal 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 federal consulting firms.
- Partial evidence
- Its own public description names part of federal consulting firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name federal 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 56 federal consulting firms based in Vienna, United States
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Federal consulting firms based in Vienna, United States at a glance
As of Sep 14, 2026Companies by employee count
Email recency for this list is measured across the whole United States list rather than for Vienna, so it is reported there. Company counts and contact totals on this page are exact for Vienna, over 56 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 federal 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.
- What qualifies
- Companies headquartered in Vienna, United States whose own description of what they do matches “federal 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 federal 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 federal consulting firms, and records with no verified work email. Companies headquartered outside Vienna 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, 491 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 14, 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.
Federal consulting firms by metro in the United States
- Federal consulting firms in Washington361
- Federal consulting firms in Arlington136
- Federal consulting firms in Atlanta109
- Federal consulting firms in Alexandria95
- Federal consulting firms in New York93
- Federal consulting firms in Reston91
- Federal consulting firms in Mclean65
- Federal consulting firms in Austin64
- Federal consulting firms in Fairfax64
- Federal consulting firms in Houston63
- Federal consulting firms in Chicago61
- Federal consulting firms in Bethesda50
- Federal consulting firms in Leesburg47
- Federal consulting firms in Rockville45
- Federal consulting firms in Columbia44
- Federal consulting firms in Los Angeles44
- Federal consulting firms in San Diego43
- Federal consulting firms in Sacramento42
- Federal consulting firms in Ashburn40
- Federal consulting firms in Herndon40
- Federal consulting firms in Miami40
- Federal consulting firms in Seattle35
- Federal consulting firms in Chantilly34
- Federal consulting firms in Dallas34
- Federal consulting firms in San Antonio34
- Federal consulting firms in Silver Spring33
- Federal consulting firms in Falls Church32
- Federal consulting firms in Tampa32
- Federal consulting firms in San Francisco29
- Federal consulting firms in Tallahassee29
- Federal consulting firms in Baltimore27
- Federal consulting firms in Indianapolis25
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 federal 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 federal consulting firms are there based in Vienna, United States?
RevenueBase identified 56 federal consulting firms headquartered in Vienna, 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?
Intellidyne, LLC, headquartered in Vienna, tops this list with the largest team on record.
Which city in the United States has the most federal consulting firms?
Washington leads the United States with 361 headquartered companies, followed by Arlington (136) and Atlanta (109). Vienna has 56.
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 491 verified decision-maker contacts tracked across these 56 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 14, 2026.
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Federal consulting firms by geography
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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.
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