Top DOT all other professional, scientific, and technical services contractors
In the 12 months ending Oct 5, 2026, the Department of Transportation obligated $557.4M in net prime contract dollars under NAICS 541990, up 71.3% from $325.3M in the preceding 12 months. 72 prime contractors received positive obligations, and 7 of them accounted for 80% of that spend.
Prime contracts funded by the Department of Transportation. Latest 12 months: Oct 6, 2025 to Oct 5, 2026. Source: USAspending.gov.
Obligations by fiscal year
Net prime contract obligations by federal fiscal year (October to September).
Top DOT contractors for NAICS 541990
Ranked by positive obligations in the latest 12 months. Share is of all positive obligations in this market.
| # | Contractor | Latest 12 mo | Prior 12 mo | Share | Rank change |
|---|---|---|---|---|---|
| 1 | Ptsi Managed Services Inc | $350.4M | $140.9M | 62.4% | — |
| 2 | KLD Associates Inc | $35.4M | $26.2M | 6.3% | — |
| 3 | Diversified Management Solutions, Inc. | $16.3M | $16.1M | 2.9% | ▲ 2 |
| 4 | Five Rivers Analytics, LLC | $16.2M | $8.5M | 2.9% | ▲ 7 |
| 5 | Condor Reliability Services, Inc. | $15.0M | $14.7M | 2.7% | ▲ 1 |
| 6 | Noblis, Inc. | $14.5M | $17.5M | 2.6% | ▼ 2 |
| 7 | Itstrategy, Incorporated | $12.0M | $11.9M | 2.1% | — |
| 8 | Vero Technical Support, Inc | $11.3M | $18.8M | 2.0% | ▼ 5 |
| 9 | Midwest Weather, Inc. | $10.0M | $9.4M | 1.8% | ▲ 1 |
| 10 | Advanced Management Technology, Inc. | $9.7M | $9.6M | 1.7% | ▼ 1 |
| 11 | Weather Data, Inc. | $8.1M | $0 | 1.5% | New |
| 12 | Pacific Weather Inc. | $5.6M | $6.1M | 1.0% | ▲ 1 |
| 13 | Alaska Weather Operation Services Inc | $5.6M | $5.4M | 1.0% | ▲ 1 |
| 14 | Akima Global Logistics, LLC | $5.1M | $11.1M | 0.9% | ▼ 6 |
| 15 | Automotive Safety Research Center, LLC | $5.0M | $4.4M | 0.9% | — |
What changed in the last 12 months
Contractors with the largest change in reported obligations versus the preceding 12 months.
Largest gains
- Ptsi Managed Services Inc$140.9M → $350.4M (+$209.5M) · now #1
- KLD Associates Inc$26.2M → $35.4M (+$9.2M) · now #2
- Weather Data, Inc.$0 → $8.1M (+$8.1M) · now #11
Largest declines
- Vero Technical Support, Inc$18.8M → $11.3M (−$7.4M) · now #8
- Evotech, LLC$6.3M → −$251K (−$6.6M) · no latest-period obligations
- Akima Global Logistics, LLC$11.1M → $5.1M (−$6.1M) · now #14
New to this market
17 contractors received their first obligations in this market (since FY2022) during the latest 12 months. The largest:
| Contractor | First obligation | Latest 12 mo |
|---|---|---|
| Weather Data, Inc. | Jul 6, 2026 | $8.1M |
| J & J Maintenance Inc | Jun 1, 2026 | $5.0M |
| Avyance LLC | Jul 15, 2026 | $4.5M |
| Vedo Corporation | Sep 23, 2026 | $1.3M |
| Flexion Inc | May 6, 2026 | $907K |
| Jones Design Studio, PLLC | Jul 10, 2026 | $458K |
| Toxcel LLC | Sep 16, 2026 | $323K |
| RAO Research and Consulting, LLC | Sep 19, 2026 | $300K |
Where the money comes from
Funding sub-agencies within the Department of Transportation, latest 12 months. The funding organization can differ from the office that runs the requirement.
| Funding sub-agency | Latest 12 mo | Prior 12 mo | Change |
|---|---|---|---|
| Federal Aviation Administration | $480.7M | $266.1M | Up $214.6M (80.6%) |
| National Highway Traffic Safety Administration | $44.9M | $35.0M | Up $9.9M (28.1%) |
| Federal Highway Administration | $23.7M | $21.8M | Up $1.9M (8.7%) |
| Pipeline and Hazardous Materials Safety Administration | $3.9M | $1.7M | Up $2.2M (128.9%) |
| Immediate Office of the Secretary of Transportation | $3.7M | $969K | Up $2.8M (284.5%) |
| Maritime Administration | $268K | $220K | Up $49K (22.1%) |
Potential recompetes
Large awards in this market whose current period of performance ends in the next 18 months. Treat these as research leads: options, extensions, and follow-on vehicles often change the timing.
| Award | Incumbent | Obligated | Current end |
|---|---|---|---|
| 693KA925C00015 | Advanced Management Technology, Inc. ASH HAS THE PRIMARY RESPONSIBILITY FOR SECURITY AND CRITICAL-INFRASTRUCTURE PROTECTION, EMERGENCY OPERATIONS, CONTINGENCY PLANNING, INTELLIGENCE ACTIVITIES, AND THE SAFE… | $14.9M | Dec 31, 2026 |
| 693JJ322C000008 | University of Maryland, College Park THE NATIONAL PERFORMANCE MANAGEMENT RESEARCH DATA SET (NPMRDS) AND TECHNICAL AND DATA-SHARING SUPPORT. | $7.1M | Jan 31, 2027 |
| 6973GH26F00762 | Five Rivers Analytics, LLC FUNDING OPTION YEAR II OF THE TECHNICAL SUPPORT SERVICES CONTRACT, 6973GH-24-D-00040 FROM 05/01/26 TO 04/30/27. | $18.0M | Apr 30, 2027 |
| 693KA822F00003 | Itstrategy, Incorporated THE PURPOSE OF THIS CONTRACT IS TO PROVIDE BAM AND ES EFAST FUNCTIONAL AREAS FOR TO ADDRESS CHALLENGES RELATED TO CINP AND OTHER APPROVED FAA PROGRAMS. | $39.3M | Apr 30, 2027 |
| 6973GH26F00980 | Weather Data, Inc. CONTRACT WEATHER (CWO) PROGRAM AREA 2 OPTION YEAR 3 | $4.1M | May 31, 2027 |
| 693JJ324F00060N | Noblis, Inc. ITS4US DEPLOYMENT PROGRAM TECHNICAL SERVICES SUPPORT | $4.1M | Jul 31, 2027 |
| 693KA925C00013 | Akima Global Logistics, LLC ATC CASE MANAGEMENT SUPPORT | $16.2M | Aug 19, 2027 |
| 693JJ921C000011 | KLD Associates Inc NEW CONTRACT TO PROVIDE FOR CRASH INVESTIGATION, PAR COLLECTION, AND DATA CODING AT 32 CRASH INVESTIGATION SAMPLING SYSTEM (CISS) SITES. | $143.1M | Sep 26, 2027 |
| 693JJ921C000007 | Automotive Safety Research Center, LLC CRASH INVESTIGATION SAMPLING SYSTEM (CISS) QUALITY CONTROL CENTER OPERATIONS | $20.2M | Sep 29, 2027 |
| 693JJ922C000011 | Laansu Incorporated CRASH REPORT SAMPLING SYSTEM (CRSS) CODING RESOURCE CENTER | $6.5M | Mar 29, 2028 |
Common questions
Who are the top DOT contractors for NAICS 541990?
In the latest 12 months, Ptsi Managed Services Inc ($350.4M), KLD Associates Inc ($35.4M), Diversified Management Solutions, Inc. ($16.3M) received the most DOT obligations for all other professional, scientific, and technical services.
How concentrated is this market?
The eight largest primes held 84.0% of positive obligations, and Ptsi Managed Services Inc alone held 62.4%. 17 contractors won their first obligations in this market during the latest 12 months.
Are any large DOT NAICS 541990 contracts ending soon?
10 of the largest awards in this market reach their current end date in the next 18 months. The first is 693KA925C00015 (Advanced Management Technology, Inc., $14.9M obligated), ending Dec 31, 2026. An end date is a research lead, not a confirmed recompete: options and extensions often move it.
Related markets
NAICS 541990 across all agencies
DoD · NAICS 541990
$5.5BDOE · NAICS 541990
$2.8BHHS · NAICS 541990
$1.3BUSAID · NAICS 541990
$277.4MCommerce · NAICS 541990
$213.3MState Department · NAICS 541990
$169.3MVA · NAICS 541990
$110.0MNASA · NAICS 541990
$99.3MFigures are net obligations on prime contracts (award types A–D) from USAspending.gov, grouped by funding agency and the NAICS code on each award. Net obligations include deobligations and corrections, so they can differ from positive-obligation totals. See methodology.
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