Site search

Find the detail.

Enter a term to search the site.

Reference library

R499

Support: Professional, Other Professional Services

PSC R499: other professional services. IT Custom Solution delivers cross-discipline professional services for federal and commercial buyers.

Keep the reference

Copying a link does not grant access to a restricted destination.

Overview

The residual support PSC for other professional services.

All PSC codes

Request a quote

In federal procurement

R499 is the federal PSC for other professional services: specialized professional work that does not fall under a named professional-services PSC. Agencies use it for hybrid or cross-discipline scopes. It is the support-services counterpart to NAICS 541990 and is filed in ITC’s SAM PSC assertions for scopes that span categories.

UEI PR9KWJPM4JU9 · CAGE 91CE1 · PSC family Support Services.

The same capability, commercially

Commercially, R499 represents the cross-discipline professional engagement: a single provider spanning advisory, build, and operations rather than three vendors. Mid-market firms consolidating vendors buy this. ITC’s four-practice structure is built for scopes that no single-discipline firm covers alone.

What falls under R499

The work, and the ITC services that deliver it. We are happy to consult on which PSC fits your scope.

  • Cross-discipline professional services
  • Hybrid advisory plus delivery scopes
  • Single-provider multi-practice engagements
  • Specialized professional support

Government IT Consulting Software Development

Common questions

When is PSC R499 used instead of R425?

R425 is specifically engineering and technical services; R499 is the residual professional-services code for other or cross-discipline professional work that does not fit a named code.

Related codes

PSCs and NAICS that often appear together.

PSC R425

PSC R799

PSC DA01

NAICS 541990

NAICS 541611

Send the scope

We'll confirm the right PSC and NAICS for your solicitation, government or commercial.

hello@itcustomsolution.com

Request a quote

Keep exploring

Context for the next decision.