NAICS 561599
All Other Travel Arrangement and Reservation Services
Federal contractor footprint · 7 profiled contractors
Combined Contractor Footprint
$3.1B
Obligations under NAICS 561599 across the 7 GovExpress-profiled contractors that report the code. Not total federal spending in the code, and not de-duplicated across corporate families that file under more than one parent record.
Top Federal Contractors — All Other Travel Arrangement and Reservation Services
Obligations under NAICS 561599 across the 7 GovExpress-profiled contractors that report the code. Not total federal spending in the code, and not de-duplicated across corporate families that file under more than one parent record.
- CSI AVIATION, INC$3.0B
- A-TEK, INC.$20.6M
- MONTECH INC$1.8M
- CELEEN LLC$1.0M
- DSFEDERAL, INC$588K
- KALITTA AIR LLC$82K
- S365 INC$42K
Agencies Buying This Code
Estimated by weighting each profiled contractor's agency mix by its NAICS 561599 footprint. Directional, not an agency-by-code total.
Competing in NAICS 561599?
Get your Federal Readiness Score →Free for the first 1,000 companies, one place per work-email domain. Sign in with your work email to hold your company’s Founding Member place →
Obligations under NAICS 561599 across the 7 GovExpress-profiled contractors that report the code. Not total federal spending in the code, and not de-duplicated across corporate families that file under more than one parent record. Spending data from FPDS-NG via USASpending.gov, read between 2026-09-22 and 2026-10-23. Standard 90-day reporting lag per FAR 4.606(c). Read the full methodology.