Company lists · Data refreshed September 2026

Top 21 Legacy system modernization companies based in Reston, United States

Name: Legacy system modernization companies based in Reston, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 29 companies tracked

RevenueBase identified 29 company matches for legacy system modernization companies associated with Reston, United States as of September 2026 and tracks 1,528 professional contacts across them, including 532 with verified work emails. Across the United States, New York is the largest hub for this category (203 companies); Reston has 29.

This list covers company matches for legacy system modernization companies associated with Reston, United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 20, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Sep 20, 2026 How this list was built

29Companies

1,528Contacts tracked

532Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 21 largest legacy system modernization companies based in Reston, United States

Ranked by team size

Top 21 of 29 company matches for legacy system modernization companies based in Reston, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 20, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Brillient Corporation	Exact match	Reston, VA, United StatesHQ recorded Sep 20, 2026	1,001-5,000	455 contacts →
	Exact match “Brillient is an award-winning Full Spectrum Digital Transformation company enabling clients to transform through the continuum of analog, to digital, to analytics leading to…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
2	Excelacom	Exact match	Reston, VA, United StatesHQ recorded Sep 20, 2026	501-1,000	306 contacts →
	Exact match “Excelacom is a global Software and Consulting company headquartered in Reston, VA, just outside of Washington, D.C, with offices across North America and Europe and a Technology…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
3	Techsur Solutions	Exact match	Reston, VA, United StatesHQ recorded Sep 20, 2026	51-200	120 contacts →
	Exact match “TechSur Solutions (SDB · 8(a) · EDWOSB · WOSB) is a strategic provider of emerging technology and digital transformation services for federal agencies, specializing in application…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
4	Pureintegration	Exact match	Reston, VA, United StatesHQ recorded Sep 20, 2026	51-200	105 contacts →
	Exact match “The epitome of ‘punching above our weight’, pureIntegration is the secret weapon you may never have heard of.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
5	Oteemo INC	Exact match	Reston, VA, United StatesHQ recorded Sep 20, 2026	51-200	88 contacts →
	Exact match “Oteemo is a technology and business transformation consulting firm that combines deep technical expertise with human-centered design principles to deliver innovative solutions.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
6	KAT Enterprise LLC	Exact match	Reston, VA, United StatesHQ recorded Sep 20, 2026	51-200	69 contacts →
	Exact match “KAT Enterprise is a trusted Microsoft Solutions Partner, delivering enterprise-grade digital transformation services across federal, commercial, and SMB sectors since 2015.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
7	Aderas, INC	Exact match	Reston, VA, United StatesHQ recorded Sep 20, 2026	51-200	49 contacts →
	Exact match “Aderas specializes in implementing, extending, managing, and tuning enterprise applications, databases, applications servers as well as custom software and IT development.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
8	Adroitts	Exact match	Reston, VA, United StatesHQ recorded Sep 20, 2026	51-200	43 contacts →
	Exact match “Adroitts is a technology and consulting company that specializes in providing innovative IT solutions and services to businesses across various industries.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
9	Workmethods Solutions INC	Exact match	Reston, VA, United StatesHQ recorded Sep 20, 2026	51-200	41 contacts →
	Exact match “At workMETHODS (WMS), we help enterprises automate repetitive work, cut error rates by up to 70%, and reduce costs by nearly 30% through business process automation (BPA) and…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
10	Snowrelic INC	Exact match	Reston, VA, United StatesHQ recorded Sep 20, 2026	11-50	39 contacts →
	Exact match “Snowrelic Inc was founded by technology professionals with a vision to provide quality and cost-effective Modern IT solutions.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
11	DS Technologies INC	Exact match	Reston, VA, United StatesHQ recorded Sep 20, 2026	11-50	32 contacts →
	Exact match “DS Technologies Inc - SUCCESS IS OUR DUTY We are a company that provides innovative, transformative IT services and solutions.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
12	Basecamp Consulting And Solutions LLC	Exact match	Reston, VA, United StatesHQ recorded Sep 20, 2026	11-50	26 contacts →
	Exact match “Basecamp Consulting and Solutions LLC is a Reston, Virginia–based IT services firm specializing in Enterprise Modernization and Transformation for the U.S.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
13	Quest1	Exact match	Reston, VA, United StatesHQ recorded Sep 20, 2026	11-50	25 contacts →
	Exact match “We design and build the data and AI systems enterprises run on, with the partners shaping tomorrow's stack already at the table.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
14	Husl Digital	Exact match	Reston, VA, United StatesHQ recorded Sep 20, 2026	11-50	19 contacts →
	Exact match “HUSL Digital is an AI-enabled digital modernization partner serving growth-focused and mission-driven organizations operating in complex environments.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
15	Rockwoods INC	Exact match	Reston, VA, United StatesHQ recorded Sep 20, 2026	51-200	15 contacts →
	Exact match “Our team has diverse group of experienced and talented professionals who can deliver everything from individual consulting and training to full-scale re-engineering, software…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
16	T. White Parker	Exact match	Reston, VA, United StatesHQ recorded Sep 20, 2026	11-50	14 contacts →
	Exact match “T.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
17	ASR Tech Group INC	Exact match	Reston, VA, United StatesHQ recorded Sep 20, 2026	51-200	11 contacts →
	Exact match “ASR Tech Group, is a digital transformation services provider located in Reston Virginia USA.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
18	Agiletrailblazers	Exact match	Reston, VA, United StatesHQ recorded Sep 20, 2026	11-50	11 contacts →
	Exact match “AgileTrailblazers is a Northern Virginia based fast growing full-service digital transformation company.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
19	Infoapps INC	Exact match	Reston, VA, United StatesHQ recorded Sep 20, 2026	51-200	4 contacts →
	Exact match “InfoApps Inc is a digital transformation organization aimed at creating seamless solutions for clients to effectively manage their business operations.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
20	Agile Global Solutions LLC	Exact match	Reston, VA, United StatesHQ recorded Sep 20, 2026	1-10	3 contacts →
	Exact match “Strategic IT Solutions To Transformation Your Business” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
21	Avaliance US	Exact match	Reston, WA, United StatesHQ recorded Sep 20, 2026	1-10	1 contacts →
	Exact match “Avaliance is an international IT consulting firm since 2010.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “legacy system modernization companies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 21 of 29 legacy system modernization companies based in Reston, United States

See the full list, filter by size, metro and specialty, and access 532 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Legacy system modernization companies based in Reston, United States at a glance

As of Sep 20, 2026

34.8%Verified-email coverage

52.7Average contacts per company

51-200Median size (employees)

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

501-1,000

1,001-5,000

Email recency for this list is measured across the whole United States list rather than for Reston, so it is reported there. Company counts and contact totals on this page are exact for Reston, over 29 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with Reston, United States whose business descriptions match “legacy system modernization companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 532 professional contacts with verified work emails across the full matched dataset. 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 20, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Legacy system modernization companies by metro in the United States

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “legacy system modernization companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many legacy system modernization companies are there based in Reston, United States?

RevenueBase identified 29 company matches for legacy system modernization companies associated with Reston, United States as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Brillient Corporation tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in the United States has the most legacy system modernization companies?

New York leads the United States with 203 company records, followed by Austin (148) and Houston (131). Reston has 29.

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 532 professional contacts with verified work emails tracked across these 29 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 20, 2026.

Ready to reach these companies? Verified emails and direct dials for all 29 legacy system modernization companies based in Reston, United States. Start with a free account, no credit card.

Download this list →

Related lists

Legacy system modernization companies by geography

Browse the directory

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 SmartSearch, 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.