GILBANE BUILDING CO.

GILBANE BUILDING CO. is a DC government contractor that has received $652.1M in purchase order payments across 2 District of Columbia agencies. Their largest agency partner is Department of General Services.

Total Revenue

$652.1M

Agency Partners

Annual Revenue from DC

By fiscal year

$187K

FY15

$35.6M

FY16

$67.1M

FY17

$91.7M

FY18

$31.3M

FY19

$64.0M

FY20

$54.3M

FY21

$61.9M

FY22

$31.9M

FY23

$71.0M

FY24

$16.7M

FY25

$115.7M

FY26

Agency Relationships

Revenue breakdown by DC agency

Department of General ServicesDGS

$632.9M(97%)

Since Feb 2016Last: May 2026

DC Public LibraryDCPL

$19.2M(3%)

Since Jun 2015Last: Jun 2021

What They Sell

NIGP commodity codes from purchase orders

95826009582600:Construction Management Services

$469.8M

90625009062500:Design Build Services

$99.3M

90924009092400:Building Construction, Commercial and Institutional

$41.2M

96258009625800:Professional Services (Not Otherwise Classified)

$18.6M

91240809124080 : DEMOLITION SERVICES, URBAN AREAS

$2.1M

95877009587700:Project Management Services

91831009183100:Construction Consulting

$81K

90903009090300:Administration of Contracts: Summary of Work, Quality Control, Project Closeout, etc.

$259K

95935009593500:Construction Services, General (Marine)

$117K

84034058403405:AUDIO/VIDEO DIGITAL MIXER

$133K

91038079103807 : ASBESTOS ABATEMENT AND DISPOSAL SERVICES

$5.7M

93863579386357 : MAINTENANCE AND REPAIR, (INCLUDING INSTALLATION AND UPGRADES) OF SPECIALIZED LABORATORY EQUIPMENT AND ACCESSORIES

$401K

91052009105200:Maintenance Services, Building (Not Otherwise Classified)

$3.8M

92931009293100:Construction Equipment Maintenance and Repair (Not Otherwise Listed)

$10.5M

90735009073500:Designing Services

$187K

Recent Purchase Orders

Most recent transactions with DC government

Agency	Description	Amount	Date
DGS Department of General Services	DCPS-000046-MODRN - Aiton (Whitlock) Elementary School Modernization - FY24 Capital portion of $24,4	$17.4M	May 13, 2026
DGS Department of General Services	DCPS-000046-MODRN - Aiton ES Modernization-ESA #2 -FY23 CAPITAL FUNDING -NO FF&E	$24.4M	May 13, 2026
DGS Department of General Services	DCPS-000046-MODRN - Aiton (Whitlock) Elementary School Modernization - FY23 Capital portion of $24,4	$5.2M	May 5, 2026
DGS Department of General Services	DCPS-010474-RENO - Burroughs Elementary School ? Modernization ? GMP ? FY26 Modernization Capital Pa	$38.2M	Apr 18, 2026
DGS Department of General Services	DCPS-010474-RENO - Burroughs Elementary School ? Modernization ? GMP ? FY27 Modernization Capital Pa	$27.9M	Apr 18, 2026

Business Details

Curated info for this supplier

Business Name

Gilbane Building Company

Address

7 Jackson Walkway, Providence, RI 02903

Description

Construction management and general contracting firm; operates nationwide.

CEO / Leadership

Thomas Gilbane III, CEO

Website

www.gilbaneco.com

Phone

(401) 456-5800

Quick Facts

Most Recent PO

May 13, 2026

Top Agency Partner

Department of General Services

97% of total revenue

Revenue Concentration

Highly concentrated, relies heavily on one agency

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