If you sell cloud infrastructure, managed hosting, or data processing to the federal government, NAICS 518210 is likely the code under which those contracts get bid — and it carries a $40.0 million receipts-based small-business size standard, materially higher than the standard that applies to the 5415 computer-services codes. That gap is the strategic point of this page: a firm that has outgrown small status under a coding/software code can often still compete as a small business on hosting and infrastructure work classified under 518210. Below is a plain-spoken explainer of what the code covers, how the 2022 NAICS revision reshaped it, and where it matters in a federal bid. This is educational, not legal advice — verify any threshold against the SBA size-standards table and the live solicitation.
What NAICS 518210 actually covers
The infrastructure and processing layer — not the consulting or custom-build layer.
NAICS 518210 is the U.S. industry code for establishments that provide the computing infrastructure itself: the servers, platforms, and facilities that host applications and process data, rather than the people who write the software or advise on IT strategy.
In practice, the work that falls under 518210 includes:
Computing infrastructure providers
Providing compute, storage, and platform capacity — cloud and Infrastructure-as-a-Service offerings, application hosting, and general timeshare/mainframe facilities furnished to clients.
Web & application hosting
Web hosting, streaming services, and application service provisioning — operating the environment where a client’s site, app, or media actually runs.
Data processing services
Complete processing and specialized reporting from client-supplied data, plus automated data-processing and data-entry services.
The line that trips people up: if you are building the software or advising on architecture, that is usually a 5415 computer-services activity (custom programming, systems design, IT consulting). If you are running the infrastructure that hosts and processes — that is 518210. Many firms legitimately do both and hold multiple codes. The procurement’s assigned NAICS, not your self-description, governs each individual bid.
Same number, broader title
What changed — and what stayed exactly the same.
The six-digit number did not change. What changed in the 2022 NAICS revision is the title and scope. Under the 2017 structure, 518210 was titled “Data Processing, Hosting, and Related Services.” The 2022 revision kept the number and retitled it to “Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services,” explicitly recognizing cloud and computing-infrastructure providers within the code and across the renamed Subsector 518.
| NAICS vintage | Title for 518210 |
|---|---|
| 2017 NAICS | Data Processing, Hosting, and Related Services |
| 2022 NAICS (current) | Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services |
So if you see older references to the shorter “Data Processing, Hosting” title, they are describing the same code at an earlier vintage — not a different or retired code. There is no separate predecessor number to chase; the modern, cloud-aware title is the one to use in your capability statement and SAM.gov profile.
Why the $40.0M standard is a bidding lever
The single most actionable fact on this page.
The SBA size standard for NAICS 518210 is $40.0 million in average annual receipts. That is higher than the standard that applies to the 5415 computer-services codes — including 541511 (Custom Computer Programming Services), the code BrandShyp itself holds.
What that means in plain terms
A firm can grow past the small-business ceiling on coding/software work and still qualify as small on a cloud, hosting, or data-processing procurement classified under 518210. The code under which a given contract is solicited determines which size standard applies to that bid — so the same company can be “small” on one opportunity and “other than small” on another.
The honesty caveat
Monetary size standards get revised. SBA has a pending proposal to adjust receipts-based thresholds, so treat $40.0M as current-as-published, not permanent. Always confirm the figure for the procurement’s NAICS against 13 CFR 121.201 and the SBA table before you represent yourself as small.
Size is calculated on your concern’s average annual receipts including affiliates, under the SBA’s rules — joint ventures, common ownership, and control all factor in. A clean read of your own number is not the same as a defensible small-business representation, so when the dollars are close to the line, get it checked.
518210 in a real federal bid
Where the code shows up — and what it does and doesn’t determine.
Agencies assign 518210 to a broad swath of cloud and hosting work: managed cloud environments, web and application hosting, data-center and processing services, and “as-a-service” infrastructure delivery. When you scan SAM.gov, the assigned NAICS on each notice tells you which size standard and which small-business set-asides are in play.
- Set-asides follow the NAICS. Whether an opportunity is set aside for small business, and against what ceiling, is keyed to its assigned code — see federal set-aside programs for how the lanes work.
- Carry the codes you can actually perform. List 518210 in SAM only if you genuinely provide infrastructure/hosting/processing — padding your NAICS list invites a size or responsibility challenge.
- Classification is not authorization. Federal cloud/hosting work frequently intersects with FedRAMP and NIST 800-171 / CMMC. Those are separate compliance regimes — 518210 classifies the industry, it does not by itself confer or require any authorization. Check the solicitation for the actual security requirement.
For the full picture of how 518210 fits alongside 541511, 541512, 541519 and the other codes IT firms commonly carry, see our companion guide: NAICS codes for IT contractors. This page is educational, not legal advice — verify every code, size standard, and set-aside against SBA, SAM.gov, and the specific solicitation before you bid.