Company lists · Data refreshed September 2026

Top 25 Public sector IT consulting firms based in Ashburn, United States

Name: Public sector IT consulting firms based in Ashburn, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 74 companies tracked

RevenueBase identified 74 public sector IT consulting firms headquartered in Ashburn, United States as of September 2026 and tracks 84,582 professional contacts across them, including 26,984 with verified work emails. Across the United States, Washington is the largest hub for this category (245 companies); Ashburn has 74.

This list covers public sector IT consulting firms headquartered in Ashburn, 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 29, 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 29, 2026 86% judged on-target in blind review

74Companies

84,582Contacts tracked

26,984Verified emails

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The 25 largest public sector IT consulting firms based in Ashburn, United States

Ranked by team size

Top 25 of 74 public sector IT consulting firms based in Ashburn, United States, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to public sector IT consulting firms: 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	DXC Technology	Partial evidence	Ashburn, VA, United StatesHQ checked Sep 29, 2026	10001+	82,768 contacts →
	Partial evidence “DXC Technology helps global companies run their mission-critical systems and operations while modernizing IT, optimizing data architectures, and ensuring security and scalability…” Source: RevenueBase Database · checked Sep 29, 2026
2	Telos Corporation	Indirect evidence	Ashburn, VA, United StatesHQ checked Sep 29, 2026	501-1,000	629 contacts →
	Indirect evidence “Telos Corporation (NASDAQ: TLS) empowers and protects the world’s most security-conscious organizations with efficient, adaptable, and secure solutions that safeguard people…” Source: RevenueBase Database · checked Sep 29, 2026
3	Zillion Technologies, INC	Partial evidence	Ashburn, VA, United StatesHQ checked Sep 29, 2026	501-1,000	338 contacts →
	Partial evidence “Zillion Technologies, Inc.(Zillion) provides global expertise in innovative technology, services, and consulting that helps our clients to reach beyond what they think is possible.” Source: RevenueBase Database · checked Sep 29, 2026
4	PGTEK	Strong evidence	Ashburn, VA, United StatesHQ checked Sep 29, 2026	51-200	120 contacts →
	Strong evidence “Our firm provides global IT infrastructure professional services to industry-leading OEM, infrastructure software, and significant private and public sector organizations.” Source: RevenueBase Database · checked Sep 29, 2026
5	Inquisit	Indirect evidence	Ashburn, VA, United StatesHQ checked Sep 29, 2026	51-200	50 contacts →
	Indirect evidence “At InquisIT, we believe the business of government is vital to our nation and demands the highest caliber of contractor services.” Source: RevenueBase Database · checked Sep 29, 2026
6	Extend Information Systems INC	Indirect evidence	Ashburn, VA, United StatesHQ checked Sep 29, 2026	51-200	49 contacts →
	Indirect evidence “At Extend Information Systems (ExtendInfosys), we’re cognizant of shaping the future.” Source: RevenueBase Database · checked Sep 29, 2026
7	Ignite IT	Partial evidence	Ashburn, VA, United StatesHQ checked Sep 29, 2026	201-500	48 contacts →
	Partial evidence “Ignite IT is an established leader in providing innovative, integrated AI solutions tailored to large federal agencies.” Source: RevenueBase Database · checked Sep 29, 2026
8	Dotgov Solutions LLC	Partial evidence	Ashburn, VA, United StatesHQ checked Sep 29, 2026	11-50	47 contacts →
	Partial evidence “DotGov Solutions, LLC (formerly Alfa XP Web Software, LLC) is a full-service e-government consulting company providing organizational analysis, process improvement, and custom…” Source: RevenueBase Database · checked Sep 29, 2026
9	Agensys Corporation	Indirect evidence	Ashburn, VA, United StatesHQ checked Sep 29, 2026	51-200	44 contacts →
	Indirect evidence “Agensys Corporation provides agile processes, skilled people, and technology solutions to help transform our Defense, Intelligence and Civilian agency customers.” Source: RevenueBase Database · checked Sep 29, 2026
10	Pioneer Corporate Services INC	Partial evidence	Ashburn, United StatesHQ checked Sep 29, 2026	51-200	38 contacts →
	Partial evidence “Software Staffing and consulting Firm” Source: RevenueBase Database · checked Sep 29, 2026
11	Palmiq	Indirect evidence	Ashburn, VA, United StatesHQ checked Sep 29, 2026	11-50	36 contacts →
	Indirect evidence “Your Strategic Technology Transformation Partner.” Source: RevenueBase Database · checked Sep 29, 2026
12	Systalex Corp	Indirect evidence	Ashburn, VA, United StatesHQ checked Sep 29, 2026	11-50	30 contacts →
	Indirect evidence “Systalex delivers secure, scalable, and intelligent solutions that empower organizations to achieve mission-driven outcomes.” Source: RevenueBase Database · checked Sep 29, 2026
13	Kollabio, INC	Indirect evidence	Ashburn, VA, United StatesHQ checked Sep 29, 2026	1-10	18 contacts →
	Indirect evidence “Kollabio is an innovative digital startup that provides digital transformation solutions and services to the Federal Government and commercial organizations.” Source: RevenueBase Database · checked Sep 29, 2026
14	Avail Solutions	Partial evidence	Ashburn, VA, United StatesHQ checked Sep 29, 2026	11-50	12 contacts →
	Partial evidence “Avail Solutions is a world-class technical consulting and solutions provider located in Northern Virginia.” Source: RevenueBase Database · checked Sep 29, 2026
15	Protect3 Solutions	Indirect evidence	Ashburn, VA, United StatesHQ checked Sep 29, 2026	11-50	11 contacts →
	Indirect evidence “Protect3 provides cyber security solutions for government agencies.” Source: RevenueBase Database · checked Sep 29, 2026
16	Diamond Information Systems, LLC	Indirect evidence	Ashburn, VA, United StatesHQ checked Sep 29, 2026	11-50	10 contacts →
	Indirect evidence “Diamond provides outstanding results for our clients, with a focus on integrated, flexible, and economical solutions that meet business objectives.” Source: RevenueBase Database · checked Sep 29, 2026
17	S Square Technologies	Partial evidence	Ashburn, VA, United StatesHQ checked Sep 29, 2026	11-50	9 contacts →
	Partial evidence “At S Square, we're more than just an IT solutions provider; we're your strategic partner in digital evolution with a human-centric design approach.” Source: RevenueBase Database · checked Sep 29, 2026
18	Emerjence LLC	Strong evidence	Ashburn, VA, United StatesHQ checked Sep 29, 2026	11-50	8 contacts →
	Strong evidence “emerjence LLC is a Small Disadvantaged Business (SDB) providing comprehensive IT consulting services to US Federal clients, including Health and Human Services (HHS), the…” Source: RevenueBase Database · checked Sep 29, 2026
19	Capa City Consulting, LLC	Strong evidence	Ashburn, VA, United StatesHQ checked Sep 29, 2026	1-10	7 contacts →
	Strong evidence “Capa City Consulting is a leading service provider of IT infrastructure services in the metropolitan Washington D.C.” Source: RevenueBase Database · checked Sep 29, 2026
20	Smart Synergies, INC	Strong evidence	Ashburn, VA, United StatesHQ checked Sep 29, 2026	51-200	7 contacts →
	Strong evidence “Smart Synergies, Inc.(SSI) is a technology and business services consulting firm specializing in Business & IT Consulting Services and Strategic Sourcing Solutions to Government &…” Source: RevenueBase Database · checked Sep 29, 2026
21	Monoc Securities LLC	Partial evidence	Ashburn, VA, United StatesHQ checked Sep 29, 2026	1-10	6 contacts →
	Partial evidence “Monoc Securities LLC is a trusted security consulting firm specializing in the U.S.” Source: RevenueBase Database · checked Sep 29, 2026
22	KJB Solutions LLC	Partial evidence	Ashburn, VA, United StatesHQ checked Sep 29, 2026	11-50	6 contacts →
	Partial evidence “KJB Solutions delivers enterprise-grade IT solutions that power critical federal infrastructure, with deep specialization in systems that serve our nation's veterans.” Source: RevenueBase Database · checked Sep 29, 2026
23	Tachys INC	Indirect evidence	Ashburn, VA, United StatesHQ checked Sep 29, 2026	1-10	6 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 29, 2026
24	Vernon & Company	Strong evidence	Ashburn, VA, United StatesHQ checked Sep 29, 2026	1-10	6 contacts →
	Strong evidence “Strategic-to-Tactical Growth, Innovation, Mission / IT & Management / Consulting & Advisory {especially AI / ML, Geospatial, Cloud, Cybersecurity, DevOps, & Software Engineering}…” Source: RevenueBase Database · checked Sep 29, 2026
25	Fedstrong	Indirect evidence	Ashburn, VA, United StatesHQ checked Sep 29, 2026	1-10	5 contacts →
	Indirect evidence “At FedStrong, our mission is to empower federal government agencies with innovative business and technology solutions that drive efficiency, enhance process efficiencies and…” Source: RevenueBase Database · checked Sep 29, 2026

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: public sector IT 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 public sector IT consulting firms.
Partial evidence: Its own public description names part of public sector IT consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name public sector IT 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 74 public sector IT consulting firms based in Ashburn, United States

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Public sector IT consulting firms based in Ashburn, United States at a glance

As of Sep 29, 2026

31.9%Verified-email coverage

1143.0Average contacts per company

11-50Median size (employees)

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

10001+

Email recency for this list is measured across the whole United States list rather than for Ashburn, so it is reported there. Company counts and contact totals on this page are exact for Ashburn, over 74 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 public sector IT 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 Ashburn, United States whose own description of what they do matches “public sector IT 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 public sector IT 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 public sector IT consulting firms, and records with no verified work email. Companies headquartered outside Ashburn 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, 26,984 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 29, 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.

Public sector IT consulting firms 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 public sector IT 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 public sector IT consulting firms are there based in Ashburn, United States?

RevenueBase identified 74 public sector IT consulting firms headquartered in Ashburn, 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 in the United States has the most public sector IT consulting firms?

Washington leads the United States with 245 headquartered companies, followed by New York (188) and Reston (158). Ashburn has 74.

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 26,984 verified decision-maker contacts tracked across these 74 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 29, 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.