GETWAB

02 / Market Size

How large is the PSC 4520 federal market?

Net obligations$211.91M
Contract actions12,668
Vendors893
Federal customers46
Contracting offices391
Average action$16.7K
Largest action$11.88M
Data coverageFY 2019–FY 2025

03 / Spending Trend

PSC 4520 contract spending by fiscal year

Annual obligations, activity, and participation across the same FY 2019–FY 2025 profile window.

Latest closed fiscal year$34.68M
FY 2025
Fiscal yearObligationsActionsVendorsCustomersChange
FY 2019$26.24M2,22028725
FY 2020$33.93M1,91423526+29.3%
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%

04 / Top Federal Customers

Which federal agencies buy most in this industry?

Ranked by net obligations during FY 2019–FY 2025.

Federal customerCodeObligationsActionsVendorsMarket share
DEFENSE LOGISTICS AGENCY97AS$123.75M7,97037058.4%
DEPT OF THE ARMY2100$28.54M1599213.5%
DEPT OF THE AIR FORCE5700$20.95M155719.9%
DEPT OF THE NAVY1700$9.92M261884.7%
FEDERAL PRISON SYSTEM / BUREAU OF PRISONS1540$6.90M159893.3%
VETERANS AFFAIRS, DEPARTMENT OF3600$5.09M124772.4%
U.S. COAST GUARD7008$4.74M139632.2%
STATE, DEPARTMENT OF1900$2.45M105441.2%
NATIONAL PARK SERVICE1443$1.92M28150.9%
DEFENSE MEDIA ACTIVITY (DMA)97F1$1.14M510.5%

05 / Contracting Offices

Which contracting offices buy in PSC 4520?

Ranked by net obligations during FY 2019–FY 2025.

06 / Top Vendors

Which contractors lead the PSC 4520 market?

VendorObligationsActionsCustomersMarket shareLatest activity
WINDWARD ENTERPRISES, LLC$29.44M674213.9%Sep 19, 2025
HDT EXPEDITIONARY SYSTEMS, INC.$21.12M23410.0%Jan 6, 2025
BONEAL, INCORPORATED$13.62M2116.4%Dec 13, 2024
ARGO TURBOSERVE CORPORATION$13.02M66126.1%Sep 23, 2025
SIKORSKY AIRCRAFT CORPORATION$9.84M1,56014.6%Sep 19, 2025
PIONEER INDUSTRIES, INC.$7.57M30733.6%Sep 15, 2025
KAMPI COMPONENTS CO., INC.$6.00M33022.8%Sep 26, 2025
ELECTRIC HEATER COMPANY, THE$5.76M11482.7%Sep 25, 2025
CANADIAN COMMERCIAL CORPORATION$5.64M4612.7%Oct 8, 2024
INTERNATIONAL THERMAL RESEARCH LTD$2.80M11011.3%Aug 1, 2025

07 / Industry Mix

What industries are purchased under PSC 4520?

NAICSDescriptionObligationsActionsVendorsShare
333414HEATING EQUIPMENT (EXCEPT WARM AIR FURNACES) MANUFACTURING$77.29M3,36440336.5%
333415AIR-CONDITIONING AND WARM AIR HEATING EQUIPMENT AND COMMERCIAL AND INDUSTRIAL REFRIGERATION EQUIPMENT MANUFACTURING$45.15M1,48220621.3%
336411AIRCRAFT MANUFACTURING$9.85M1,56234.6%
541330ENGINEERING SERVICES$9.73M2034.6%
332323ORNAMENTAL AND ARCHITECTURAL METAL WORK MANUFACTURING$7.36M527983.5%
336413OTHER AIRCRAFT PARTS AND AUXILIARY EQUIPMENT MANUFACTURING$6.01M77212.8%
238220PLUMBING, HEATING, AND AIR-CONDITIONING CONTRACTORS$5.47M172962.6%
333310COMMERCIAL AND SERVICE INDUSTRY MACHINERY MANUFACTURING$5.10M117332.4%
333318OTHER COMMERCIAL AND SERVICE INDUSTRY MACHINERY MANUFACTURING$4.40M127442.1%
334512AUTOMATIC ENVIRONMENTAL CONTROL MANUFACTURING FOR RESIDENTIAL, COMMERCIAL, AND APPLIANCE USE$3.02M4781.4%

08 / Buying Pattern

How does the government buy in PSC 4520?

Competed under SAP77.9%9,873 actions
Not available for competition14.0%1,777 actions
Competed3.4%427 actions
Other / unknown2.3%297 actions
Not competed1.6%209 actions
Not competed under SAP0.7%85 actions
Other than small business share92.0%$194.93M
Small business share8.0%$16.98M
Common action typeObligationsActions
PURCHASE ORDER$142.52M10,124
DELIVERY ORDER$62.75M2,445
DEFINITIVE CONTRACT$6.40M58
BPA CALL$242.3K41

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 $211.91M market as addressable.