PSC C1DA: Architect and Engineering – Construction: Hospitals and Infirmaries

C1DA is the product and service code (PSC) federal agencies use for architect and engineering – construction: hospitals and infirmaries, in the arch – eng svcs – construction group. Here are the contracts open under it now, the NAICS codes it pairs with, and who buys and wins this work.

Open contracts now
6
Spending, FY2026
$338.6 million
Share to small businesses
78%

Open contracts with PSC C1DA, due soonest

Where C1DA sits in the PSC Manual

  • Category: Service
  • Group C: Architect/Engineer Services
  • Group C1: Arch – Eng SVCS – Construction
  • Code C1DA: Architect and Engineering – Construction: Hospitals and Infirmaries

NAICS codes used with PSC C1DA

The NAICS code on a contract sets the size standard for who counts as small. These are the codes agencies pair with C1DA most often:

NAICSIndustrySpent, last 3 years
541330Engineering Services$752 million
541310Architectural Services$164.7 million
236220Commercial and Institutional Building Construction$11 million
541512Computer Systems Design Services$1.6 million
561210Facilities Support Services$875,317
561990All Other Support Services$550,115

Who buys under PSC C1DA

Agencies with the most contract dollars under C1DA over the last three fiscal years, per USAspending.gov:

AgencyObligated
Department of Veterans Affairs$836.5 million
Indian Health Service$88.1 million
Agency for International Development$3.2 million
Department of the Army$3 million
Department of State$463,267

Federal spending under PSC C1DA by year

Fiscal yearContract obligations
FY2024$369.6 million
FY2025$218.2 million
FY2026$338.6 million
FY2027 (so far)$4.9 million

Who wins PSC C1DA contracts

CompanyObligated, last 3 years
Rwe Clean Energy Solutions, Inc.$71.9 million
Smithgroup, Inc.$48.4 million
TLS-Ces Services I, LLC$46.8 million
Noresco, LLC$41.9 million
Spees LLC$33.7 million
Leo a. Daly LLC$31.6 million
Ae Works LTD$28.1 million
Apogee Consulting Group, P.a.$27 million
Awen Solutions Group, LLC$24.3 million
Triple C-the a & E Group LLC$23.7 million

Related PSC codes

  • C111 BLDGS & Fac / Admin & SVC BLDGS
  • C112 BLDGS & Fac / Airfield, Com & MSL F
  • C113 Educational Buildings
  • C114 Hospital Buildings
  • C115 Industrial Buildings
  • C116 Residential Buildings
  • C117 Warehouse Buildings
  • C118 Research and Development Facilities
  • C119 Other Buildings
  • C121 Conservation and Development

Frequently asked questions

What is PSC C1DA?

C1DA is the service code in the federal Product and Service Code (PSC) Manual for architect and engineering – construction: hospitals and infirmaries, under C (Architect/Engineer Services) and C1 (Arch – Eng SVCS – Construction). Agencies put a PSC on every contract to record what they bought.

What is the difference between a PSC and a NAICS code?

A PSC describes what the government is buying. A NAICS code describes the industry of the business doing the work, and it sets the SBA size standard for small business set-asides. Every contract notice has both.

Which NAICS code goes with PSC C1DA?

Most federal contract dollars under PSC C1DA go with NAICS 541330 (Engineering Services), according to USAspending.gov. The contracting officer picks the NAICS code for each solicitation, so check the notice.

How do I find contracts that use PSC C1DA?

Contract opportunities are posted on SAM.gov with their PSC and NAICS codes. 6 open notices use PSC C1DA right now. FedReady can match new ones to your business and email you, free.

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