Loading…

Search every US federal contract opportunity on SAM.gov, and draft winning RFP responses with AI.

Explore the demo

Solutions

Contract search AI proposal writing Bid / no-bid scoring Buyer & market intelligence Forecast & recompetes Awards & competitors Teaming & partner network State & local contracts Pipeline & CRM

Find Contracts

All contracts Closing soon Recently posted Highest value Buyer Intelligence What’s coming up Who’s winning (awards)8(a) set-asides WOSB set-asides SDVOSB set-asides HUBZone set-asides

Agency opportunities

DoD contracts VA contracts HHS contracts DHS contracts DOE contracts GSA contracts DOT contracts NASA contracts

Tools & Pricing

AI Opportunity Scan Contract Pricing Benchmark Competitor & Incumbent Lookup Company Award Profile GovCon Market Explorer Supplier & Teaming Finder AI Pursuit Analyzer NAICS Code Lookup Set-Aside Eligibility Small Business Size Standard Acquisition Threshold Guide Bid / No-Bid Scorecard Bid ROI Calculator CMMC 2.0 / SPRS Estimator HUBZone Eligibility Checker Plans & pricing

Learn

Market Reports Blog Answers (Q&A)Resources Glossary A–Z Guides Compare tools 2026 data report

Company

About Contact sales Security & trust Careers WinAContract UK BidWriter UK GovCon — AI proposals eSourcing Data Privacy Terms Refunds

Services & network

Bid & capture consulting Registration & certifications GovCon training Supplier network Teaming & partnering Data & API Reports store

WinAContract is built for US government contractors and hosted in the United States. Operated by eSourcing Data Ltd, registered in England and Wales.

© 2026 eSourcing Data Ltd · info@winacontract.com

NAICS 519190

Top contractors in NAICS 519190

The 73 contractors with tracked federal awards in NAICS 519190, totalling $1,902,935,866. Ranked by award value.

See live NAICS 519190 opportunities →All contractors

1MAXIMUS FEDERAL SERVICES, INC.$911,041,7611 awards
2AMERICAN CHEMICAL SOCIETY$192,980,5761 awards
3RELX INC.$83,339,94620 awards
4WEST PUBLISHING CORPORATION$68,411,39217 awards
5CSRA LLC$65,001,0511 awards
6SCIENCE APPLICATIONS INTERNATIONAL CORPORATION$63,519,4061 awards
7DUN & BRADSTREET, INC$52,599,9381 awards
8PROQUEST LLC$34,108,2671 awards
9IHS GLOBAL INC$33,867,25210 awards
10CLARIVATE ANALYTICS (US) LLC$29,855,6281 awards
11NORTHROP GRUMMAN SYSTEMS CORPORATION$29,797,8791 awards
12OVID TECHNOLOGIES, INC.$28,168,0051 awards
13EBSCO INDUSTRIES INC$23,249,4875 awards
14ARROW ALLIANCE INDUSTRIES, LLC$20,446,1308 awards
15CONCENTRIX CVG CORPORATION$18,757,2121 awards
16COPPER RIVER CYBER SOLUTIONS, LLC$17,555,8823 awards
17COX SUBSCRIPTIONS, INC.$17,143,7018 awards
18DEXIS INTERACTIVE LLC$16,725,4721 awards
19REFINITIV US LLC$15,768,7542 awards
20EBSCO INFORMATION SERVICES, LLC$15,721,5511 awards
21GOLDBELT FRONTIER, LLC$13,322,9464 awards
22TUVLI LLC$12,623,9441 awards
23INDIGENOUS TECHNOLOGIES, LLC$10,924,2792 awards
24BLOOMBERG FINANCE LP$10,770,3162 awards
25CHICKASAW MANAGEMENT SERVICES, LLC$9,852,2491 awards
26CGI FEDERAL INC.$9,680,2171 awards
27MICROHEALTH LLC$7,027,5312 awards
28FACTIVA INC$6,071,2221 awards
29INFIOS US, INC.$5,438,6411 awards
30LEXISNEXIS RISK SOLUTIONS INC$5,407,1582 awards
31UNISON VIRTUAL ACQUISITION OFFICE LLC$4,963,5371 awards
32S&P GLOBAL MARKET INTELLIGENCE LLC$4,579,7793 awards
33HEALTH LEVEL SEVEN INTERNATIONAL INC.$4,335,3801 awards
34ELSEVIER B.V.$4,223,1562 awards
35BULLETIN INTELLIGENCE LLC$4,005,5641 awards
36CHENEGA IT ENTERPRISE SERVICES, LLC$3,715,8541 awards
37BARBARICUM LLC$3,218,3332 awards
38BLOOMBERG INDUSTRY GROUP, INC.$3,172,9503 awards
39GUIDEHOUSE INC.$2,839,8282 awards
40ICE DATA PRICING & REFERENCE DATA, LLC$2,674,2471 awards
41JET CONSULTING, INC.$2,648,1301 awards
42CQ-ROLL CALL, INC$2,572,8778 awards
43TECHNOLOGY - MANAGEMENT & INNOVATIVE SOLUTIONS, LLC$2,510,9282 awards
44INSTITUTE OF ELECTRICAL & ELECTRONICS ENGINEERS INC$2,158,7042 awards
45INFORMA BUSINESS INTELLIGENCE LLC$2,138,2741 awards
46DANYA INTERNATIONAL LLC$2,116,9651 awards
47AFM, LLC$1,936,6721 awards
48HALVIK, LLC$1,497,9851 awards
49DATA AXLE, INC.$1,400,0001 awards
50THE MITRE CORPORATION$1,363,1281 awards
51LWH ENTERPRISES, INC$1,351,6691 awards
52BOWHEAD MARINE SUPPORT SERVICES, LLC$1,295,8681 awards
53CIRCLE CITY TELCOM INC$1,286,7621 awards
54AMERICAN BUREAU OF SHIPPING$1,265,0001 awards
55S & K GLOBAL SOLUTIONS LLC$1,211,0481 awards
56ALLIUM US HOLDING LLC$1,102,0871 awards
57DYNAMIC BUSINESS GROUP, INC.$1,098,0631 awards
58GARTNER, INC.$927,1022 awards
59WHOOSTER INC$918,7501 awards
60LEADERSHIP CONNECT, INC.$693,2501 awards