GETWAB

02 / Market Size

How large is the PSC Z1KB federal market?

Net obligations$1.11B
Contract actions806
Vendors98
Federal customers13
Contracting offices47
Average action$1.37M
Largest action$219.11M
Data coverageFY 2019–FY 2025

03 / Spending Trend

PSC Z1KB contract spending by fiscal year

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

Latest closed fiscal year$152.92M
FY 2025
Fiscal yearObligationsActionsVendorsCustomersChange
FY 2019$101.40M96368
FY 2020$149.48M136386+47.4%
FY 2021$155.40M161356+4.0%
FY 2022$53.61M118398−65.5%
FY 2023$136.56M112388+154.7%
FY 2024$356.28M90367+160.9%
FY 2025$152.92M93336−57.1%

04 / Top Federal Customers

Which federal agencies buy most in this industry?

Ranked by net obligations during FY 2019–FY 2025.

Federal customerCodeObligationsActionsVendorsMarket share
DEPT OF THE ARMY2100$1.08B6976397.2%
BUREAU OF RECLAMATION1425$9.54M2040.9%
NATIONAL PARK SERVICE1443$6.20M1440.6%
DEPT OF THE NAVY1700$5.06M2040.5%
U.S. COAST GUARD7008$5.02M1770.5%
SAINT LAWRENCE SEAWAY DEVELOPMENT CORPORATION6947$2.33M520.2%
U.S. FISH AND WILDLIFE SERVICE1448$878.7K1880.1%
BUREAU OF INDIAN AFFAIRS1450$570.2K410.1%
FOREST SERVICE12C2$430.2K310.0%
FEDERAL LAW ENFORCEMENT TRAINING CENTER7015$386.6K310.0%

05 / Contracting Offices

Which contracting offices buy in PSC Z1KB?

Ranked by net obligations during FY 2019–FY 2025.

06 / Top Vendors

Which contractors lead the PSC Z1KB market?

VendorObligationsActionsCustomersMarket shareLatest activity
GREAT LAKES DREDGE & DOCK COMPANY, LLC$339.71M46130.7%Sep 11, 2025
DUTRA GROUP, THE$88.11M2318.0%Sep 24, 2025
WEEKS MARINE, INC.$78.33M1517.1%Sep 24, 2025
MIKE HOOKS, L.L.C.$76.45M2416.9%Sep 24, 2025
ORION MARINE CONSTRUCTION, INC.$62.75M4815.7%Sep 22, 2025
MANSON CONSTRUCTION CO.$48.17M3514.4%Sep 12, 2023
INLAND DREDGING COMPANY, L.L.C.$40.40M3313.7%Dec 8, 2023
RLB CONTRACTING, INC.$36.14M5613.3%May 31, 2024
CORMAN KOKOSING CONSTRUCTION COMPANY$28.58M512.6%Nov 22, 2023
CURTIN MARITIME CORP$28.43M112.6%Sep 18, 2025

07 / Industry Mix

What industries are purchased under PSC Z1KB?

NAICSDescriptionObligationsActionsVendorsShare
237990OTHER HEAVY AND CIVIL ENGINEERING CONSTRUCTION$1.09B6896798.4%
236220COMMERCIAL AND INSTITUTIONAL BUILDING CONSTRUCTION$6.86M1160.6%
238910SITE PREPARATION CONTRACTORS$5.63M830.5%
221310WATER SUPPLY AND IRRIGATION SYSTEMS$1.12M1020.1%
238190OTHER FOUNDATION, STRUCTURE, AND BUILDING EXTERIOR CONTRACTORS$1.08M410.1%
237310HIGHWAY, STREET, AND BRIDGE CONSTRUCTION$824.1K820.1%
238110POURED CONCRETE FOUNDATION AND STRUCTURE CONTRACTORS$540.0K210.0%
488330NAVIGATIONAL SERVICES TO SHIPPING$430.2K510.0%
237110WATER AND SEWER LINE AND RELATED STRUCTURES CONSTRUCTION$397.3K320.0%
561730LANDSCAPING SERVICES$357.4K720.0%

08 / Buying Pattern

How does the government buy in PSC Z1KB?

Competed54.0%435 actions
Not competed under SAP23.9%193 actions
Competed under SAP7.3%59 actions
Other / unknown6.3%51 actions
Not competed4.8%39 actions
Not available for competition3.6%29 actions
Other than small business share93.8%$1.04B
Small business share6.2%$68.86M
Common action typeObligationsActions
DEFINITIVE CONTRACT$1.01B573
DELIVERY ORDER$96.73M144
PURCHASE ORDER$2.53M87
BPA CALL$8.0K2

09 / Recent Contract Awards

What was awarded most recently in PSC Z1KB?

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 $1.11B market as addressable.