GETWAB

02 / Market Size

How large is the PSC 4520 federal market?

Net obligations$224.19M
Contract actions11,522
Vendors842
Federal customers45
Contracting offices364
Average action$19.5K
Largest action$11.88M
Data coverageFY 2020–FY 2026

03 / Spending Trend

PSC 4520 contract spending by fiscal year

Annual obligations, activity, and participation across the same FY 2020–FY 2026 profile window.

Latest closed fiscal year$38.52M
FY 2026
Fiscal yearObligationsActionsVendorsCustomersChange
FY 2020$33.93M1,91423526—
FY 2021$26.01M2,18129027−23.4%
FY 2022$25.82M2,05625924−0.7%
FY 2023$39.96M1,66924027+54.8%
FY 2024$25.28M1,25524725−36.7%
FY 2025$34.68M1,37325623+37.2%
FY 2026$38.52M1,07423719+11.1%

04 / Top Federal Customers

Which federal agencies buy most in this industry?

Ranked by net obligations during FY 2020–FY 2026.

Federal customerCodeObligationsActionsVendorsMarket share
DEFENSE LOGISTICS AGENCY97AS$135.66M7,69037160.5%
DEPT OF THE ARMY2100$28.16M1427412.6%
DEPT OF THE AIR FORCE5700$21.12M144709.4%
DEPT OF THE NAVY1700$9.20M234804.1%
FEDERAL PRISON SYSTEM / BUREAU OF PRISONS1540$7.32M160863.3%
VETERANS AFFAIRS, DEPARTMENT OF3600$5.16M124772.3%
U.S. COAST GUARD7008$4.83M140572.2%
STATE, DEPARTMENT OF1900$2.01M99390.9%
NATIONAL PARK SERVICE1443$1.89M24120.8%
NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY1341$1.53M110.7%

05 / Contracting Offices

Which contracting offices buy in PSC 4520?

Ranked by net obligations during FY 2020–FY 2026.

06 / Top Vendors

Which contractors lead the PSC 4520 market?

VendorObligationsActionsCustomersMarket shareLatest activity
WINDWARD ENTERPRISES, LLC$29.00M662212.9%Jul 9, 2026
HDT EXPEDITIONARY SYSTEMS, INC.$21.14M2139.4%Mar 16, 2026
ARGO TURBOSERVE CORPORATION$14.00M67726.2%Jul 13, 2026
BONEAL, INCORPORATED$13.62M2216.1%Jan 12, 2026
SIKORSKY AIRCRAFT CORPORATION$9.07M1,31014.0%Sep 19, 2025
PIONEER INDUSTRIES, LLC$8.20M28833.7%Jul 7, 2026
ELECTRIC HEATER COMPANY, THE$7.30M11983.3%Sep 22, 2026
KAMPI COMPONENTS CO., INC.$5.67M30912.5%Jul 1, 2026
CANADIAN COMMERCIAL CORPORATION$5.07M3012.3%Oct 8, 2024
INTEGRATED PROCUREMENT TECHNOLOGIES$4.06M7521.8%Jul 17, 2026

07 / Industry Mix

What industries are purchased under PSC 4520?

NAICSDescriptionObligationsActionsVendorsShare
333414HEATING EQUIPMENT (EXCEPT WARM AIR FURNACES) MANUFACTURING$81.37M3,40339936.3%
333415AIR-CONDITIONING AND WARM AIR HEATING EQUIPMENT AND COMMERCIAL AND INDUSTRIAL REFRIGERATION EQUIPMENT MANUFACTURING$48.48M1,44321521.6%
541330ENGINEERING SERVICES$9.73M2034.3%
336411AIRCRAFT MANUFACTURING$9.07M1,31014.0%
332323ORNAMENTAL AND ARCHITECTURAL METAL WORK MANUFACTURING$8.51M523953.8%
333310COMMERCIAL AND SERVICE INDUSTRY MACHINERY MANUFACTURING$8.51M179393.8%
238220PLUMBING, HEATING, AND AIR-CONDITIONING CONTRACTORS$6.72M169963.0%
336413OTHER AIRCRAFT PARTS AND AUXILIARY EQUIPMENT MANUFACTURING$6.00M75172.7%
333316PHOTOGRAPHIC AND PHOTOCOPYING EQUIPMENT MANUFACTURING$5.22M104252.3%
334512AUTOMATIC ENVIRONMENTAL CONTROL MANUFACTURING FOR RESIDENTIAL, COMMERCIAL, AND APPLIANCE USE$3.63M5471.6%

08 / Buying Pattern

How does the government buy in PSC 4520?

Competed under SAP79.3%9,142 actions
Not available for competition13.3%1,528 actions
Competed2.7%310 actions
Other / unknown2.2%255 actions
Not competed1.8%205 actions
Not competed under SAP0.7%82 actions
Other than small business share91.7%$205.63M
Small business share8.3%$18.55M
Common action typeObligationsActions
PURCHASE ORDER$152.30M9,368
DELIVERY ORDER$65.96M2,062
DEFINITIVE CONTRACT$5.80M53
BPA CALL$134.3K39

09 / Recent Contract Awards

What was awarded most recently in PSC 4520?

10 / Market Interpretation

How should contractors evaluate this market?

01

Start with the spending direction

Compare annual obligations with actions and vendor participation. Growth driven by only a few large actions represents a different opportunity from broad, recurring demand.

02

Follow the actual buyers

Move from federal customers to contracting offices. Offices reveal where acquisition responsibility and recurring purchasing activity are concentrated.

03

Measure accessible demand

Use competition, small-business participation, incumbent vendors, and PSC mix before treating the full $224.19M market as addressable.