SIN 518210GM is a new Grants Management Special Item Number on the GSA Multiple Award Schedule, launched June 8, 2026 by GSA and the HHS Grants Quality Service Management Office (QSMO). It gives vendors of commercial grants management software and services a single government-wide vehicle to sell to every federal agency — plus state, local, and tribal buyers through Cooperative Purchasing.
This is one of the rare moments in the MAS program where a brand-new line of business opens with almost no incumbents. I spent ten years inside the government as a Contracting Specialist and Contracting Officer at GSA, IRS, DoD, and DOI, and a SIN this fresh is exactly the kind of opening my clients should move on early. Below is what the SIN actually covers, who qualifies, and how a Contracting Officer reviews the add-SIN modification.
What is the GSA Grants Management SIN (518210GM)?
SIN 518210GM is the procurement mechanism for the HHS Grants QSMO Marketplace. Agencies use it to buy pre-vetted commercial grants management IT and services off the GSA Schedule. It sits in the Information Technology Large Category under NAICS 518210, and it was added through MAS Refresh 32 (Mass Mod A917) released June 5, 2026.
The Grants Quality Service Management Office is led by the U.S. Department of Health and Human Services (HHS). Its job under the President's Management Agenda is to "consolidate and standardize systems, while eliminating duplicative ones" across the federal grants lifecycle. The Grants QSMO Marketplace is the designated first stop for any agency modernizing its grantmaking infrastructure.
Until now, that marketplace lacked a clean, government-wide contract vehicle. The new SIN fixes that. Per the June 8, 2026 HHS announcement, vendor solutions must meet Grants QSMO-defined capabilities and adhere to government-wide grants data standards before they can be sold under 518210GM.
What does SIN 518210GM cover — and what are the four subgroups?
518210GM is divided into four subgroups. Three are live now; Grants Performance Management Services is marked "coming soon." You may only select a subgroup that matches the offerings actually awarded on your contract — HHS and GSA monitor selections and will act against contracts that overreach.
| Subgroup | What it covers | In scope |
|---|---|---|
| Core Award Management Solutions | Partially pre-configured commercial grants management software suites delivered in a cloud environment, meeting or exceeding Core Award functionality and GMCF standards | Cloud computing services |
| Additional GM Solutions & Services | Tools that augment the Core Award baseline: program setup, business analytics, risk assessment, single audit, transaction processing, sub-recipient monitoring, NOFO simplification | Cloud services, products, professional services/labor |
| GM Technology Operations Services | Implementation, testing, O&M, system integrations with agency mission systems, service desk, ancillary training, and legacy core award system support | Products, training, professional services/labor |
| Grants Performance Management Services (coming soon) | Support of agency program review processes and evaluation of program outcomes | Products, training, professional services/labor |
Every offering is measured against the Grants Management Capabilities Framework (GMCF) and the GM Solution/Service Technical Evaluation Criteria published on Acquisition Gateway. If your software cannot map cleanly to the GMCF, do not select Core Award — you will draw a deficiency or a post-award compliance action.
Who should add the Grants Management SIN to their GSA Schedule?
This SIN fits commercial grants management software vendors, systems integrators who implement and operate grants platforms, and professional-services firms supporting NOFO design, sub-recipient monitoring, single audit, or grants data analytics. If your commercial product already serves a federal or state grant program, you are the target offeror.
- Grants management SaaS vendors — your platform is the Core Award solution agencies are looking for.
- Systems integrators — implementation, integration, and O&M map to GM Technology Operations Services.
- Grants advisory and analytics firms — risk assessment, sub-recipient monitoring, and program-setup support fit Additional GM Solutions & Services.
- Small businesses — NAICS 518210 carries a $40 million receipts-based size standard, so most of this market qualifies as small.
When I sat on the other side of the desk as a GSA Contracting Officer, a new SIN like this one always created the same dynamic: heavy agency demand, thin vendor supply, and a 12-to-18-month window before the field crowds in. The contractors who get awarded while the SIN is young are the ones who show up in eBuy when the first agency requirements post.
How do you get awarded SIN 518210GM?
If you already hold a MAS contract, you add 518210GM through an add-SIN modification in eMod. If you do not, you submit a new MAS offer through eOffer. Either way you must meet the Grants QSMO capability standards and document compliance with the GMCF, then select your subgroups in eBuy after award.
- Confirm fit. Map your offerings to one or more subgroups and to the GMCF before you write a word of the proposal.
- Prepare pricing. Build a defensible commercial pricelist with a Commercial Sales Practices (CSP) disclosure or transactional data basis; new awards report under Transactional Data Reporting (TDR), now mandatory across MAS.
- Submit the offer or mod. Existing holders file an add-SIN modification in eMod; new entrants file in eOffer under the Information Technology category. IT-category offers may qualify for the FASt Lane expedited review path.
- Clear the technical evaluation. The reviewing Contracting Officer checks your offering against the QSMO criteria, not just generic MAS terms.
- Select subgroups in eBuy. After award, log in to eBuy, open Profile, click Modify Subgroups, and select only the subgroups you were awarded.
As a Contracting Specialist at GSA, I reviewed hundreds of offers and add-SIN modifications, and the ones that stalled were almost never priced wrong — they were scoped wrong. An offeror would claim Core Award capability with a product that was really a point tool, and the file would bounce. Match your claim to your evidence and the review moves fast.
The Short Version
518210GM is a new, low-competition Grants Management lane on the GSA Schedule, governed by the HHS Grants QSMO. Pick the subgroups your product can prove, add the SIN through eMod or eOffer, report under TDR, and you gain a government-wide customer base plus Cooperative Purchasing access to state and local grant agencies. The advantage goes to whoever gets awarded first.
What does the Grants QSMO Marketplace have to do with this SIN?
The Grants QSMO Marketplace is the catalog agencies browse; SIN 518210GM is the contract they buy through. The SIN turns the marketplace from a curated list into an enforceable, government-wide acquisition vehicle, and it extends that reach to non-federal buyers through GSA's Cooperative Purchasing Program.
That Cooperative Purchasing hook matters more than most vendors realize. Under GSA's 518210GM guidance, the SIN is available to eligible state, local, tribal, and non-governmental organizations — the entities that actually administer the bulk of federal pass-through grant dollars. One Schedule award opens both the federal and the state-and-local grants market at the same time, governed by Cooperative Purchasing authority under 40 U.S.C. 502(c).
What do contractors get wrong about adding a new SIN?
The three most common mistakes are over-claiming subgroup scope, treating the add-SIN mod like a paperwork formality, and ignoring the ongoing compliance monitoring. A new SIN is a contract obligation, not a marketing badge.
- Over-claiming scope. Selecting Core Award when your product is really an analytics add-on invites a compliance action. GSA stated plainly it will monitor subgroup selections and act against non-conforming contracts.
- Thin technical narrative. The QSMO capability mapping is the heart of the review. A pricelist without a GMCF crosswalk is an incomplete offer.
- Forgetting the recurring obligations. Once awarded, you owe TDR sales reporting and the 0.75% Industrial Funding Fee (IFF) on reported sales, paid within 30 days after each quarter.
Across our 70+ proven GSA contract awards with a 100% approval rate, the pattern holds: the offers that clear on the first pass are the ones where the technical claim, the pricing, and the documentation all tell the same story. In ten years of federal acquisition — as both a Contracting Specialist and a Contracting Officer, holding a FAC-C Level III — I never saw a well-documented, accurately-scoped offer sit in the queue for long.
What Should You Do Now?
- Decide if you qualify. If you sell grants management software, integration, or advisory services, map your offerings to the four 518210GM subgroups and the GMCF today.
- Choose your path. Existing MAS holders add the SIN via an eMod add-SIN modification; new entrants file in eOffer under the IT category and check FASt Lane eligibility.
- Build the QSMO crosswalk. Document how each offering meets Grants QSMO-defined capabilities and government-wide grants data standards before you submit.
- Plan for compliance. Budget for TDR reporting and the 0.75% IFF, and only select subgroups you can defend.
- Move early. Applications are open on a rolling basis with no closing date — but the competitive advantage belongs to vendors awarded before agency demand peaks.
If you want a former GSA Contracting Officer to scope your 518210GM offer, map it to the GMCF, and run it through eMod or eOffer without a deficiency cycle, that is exactly what we do at Blackfyre. We have added new and emerging SINs to client contracts since the day they opened, and we know how the reviewing CO reads the file.
Frequently Asked Questions
When did the GSA Grants Management SIN 518210GM launch?
GSA and the HHS Grants QSMO announced SIN 518210GM on June 8, 2026. It was added to the MAS solicitation through Refresh 32 (Mass Modification A917), which GSA began releasing on June 5, 2026. Applications are open now on a continuous basis.
What NAICS code and size standard apply to SIN 518210GM?
The SIN sits under NAICS 518210, Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services. The SBA small business size standard for 518210 is $40 million in average annual receipts, so most grants management vendors qualify as small businesses.
Do I need an existing GSA Schedule to get SIN 518210GM?
No. If you already hold a MAS contract, you add 518210GM through an add-SIN modification in eMod. If you do not, you submit a new MAS offer in eOffer under the Information Technology category and request the SIN as part of that offer.
What are the subgroups under SIN 518210GM?
There are four: Core Award Management Solutions, Additional GM Solutions and Services, GM Technology Operations Services, and Grants Performance Management Services (coming soon). You may only select subgroups that correspond to the offerings awarded on your contract.
Can state and local governments buy through SIN 518210GM?
Yes. The SIN is available to eligible state, local, tribal, and non-governmental organizations through GSA's Cooperative Purchasing Program under 40 U.S.C. 502(c). That extends your single Schedule award to the agencies that administer most federal pass-through grant funding.
What is the Grants QSMO and how does it relate to this SIN?
The Grants Quality Service Management Office is led by HHS and curates the government-wide marketplace for grants management solutions. SIN 518210GM is the contract vehicle agencies use to buy from that marketplace, and all offerings must meet Grants QSMO capability standards and grants data standards.
Will adding SIN 518210GM trigger Transactional Data Reporting?
Yes. New MAS awards report under Transactional Data Reporting (TDR), which is now mandatory across the program following Refresh 31 and 32. You will also owe the 0.75% Industrial Funding Fee on reported sales, paid within 30 days after each quarter.
How long does an add-SIN modification take to get approved?
A clean, accurately-scoped add-SIN modification in eMod typically clears in roughly 30 to 60 days. The biggest delay driver is a mismatch between your claimed subgroup scope and your supporting documentation, which can trigger a deficiency notice and reset the clock.