Fathom 4 LLC
Fathom 4 LLC is a small business in Charleston, SC registered on SAM.gov to bid on federal contracts. It has won about $52.4 million in federal prime contracts since fiscal year 2024, according to USAspending.gov's award records for its UEI.
- UEI
- MKKHGNXJA6V9
- CAGE code
- 6SG73
- SAM.gov registration
- Active
Federal contract history
| Fiscal year | Obligated, prime contracts |
|---|---|
| FY2024 | $17.5 million |
| FY2025 | $15.7 million |
| FY2026 (incomplete) | $19.2 million |
FY2026 is still incomplete and will rise until about early January 2027 as Defense data arrives: USAspending.gov publishes Defense contracts 90 days after they're signed.
These are every prime contract USAspending.gov records under UEI MKKHGNXJA6V9, from its award search. For a company that is part of a parent company, USAspending's recipient page can show a different figure for a year, because it counts the company's own record and its parent's record separately.
Its biggest federal customers since fiscal year 2024: Department of the Navy ($52.4 million).
Recent contract awards
New contracts, by the date each was first signed. Orders and changes to older contracts count in the yearly totals above but aren't listed here, and Defense awards appear 90 days after signing.
| Awarded | Agency | What it's for | Obligated |
|---|---|---|---|
| Jun 26, 2026 | Department of the Navy | NIWC atlantic USMC intelligence engineering sustainment cyber support | $660,150 |
| Feb 17, 2026 | Department of the Navy | Sensing and information operations (SIO) classified projects at naval information… | $1.1 million |
| Feb 17, 2026 | Department of the Navy | Sensing and information operations integrated product team engineering and technical… | $9 million |
| Sep 8, 2023 | Department of the Navy | Distributed common ground surface system marine corps | $24.4 million |
| Jul 5, 2023 | Department of the Navy | Program management, engineering, and logistics support to USMC information dominance… | $3 million |
| May 17, 2023 | Department of the Navy | Program management (PM) /engineering/logistics support to non-naval biometrics in… | $8.5 million |
Figures are prime contract obligations reported to USAspending.gov. Subcontract work is listed separately below.
Subcontract work reported by primes
Prime contractors reported 10 subcontracts to it worth about $10 million in the last five years, according to USAspending.gov. Primes only have to report subcontracts of $40,000 or more (since October 1, 2025; $30,000 before that), so smaller jobs are missing. Amounts are net of any cuts primes reported. None of this is in the prime contract figures.
| Prime contractor | For | Subcontracts | Amount | Latest |
|---|---|---|---|---|
| Science Applications International Corporation | Department of the Navy, Department of the Air Force | 9 | $9.9 million | Mar 5, 2025 |
| Scientific Research Corporation | Department of the Navy | 1 | $106,956 | Apr 14, 2025 |
Registration details
Show registration details
From SAM.gov's monthly public file dated Nov 1, 2026. If the business has updated its registration since, SAM.gov shows the newer details.
| Legal business name | Fathom 4 LLC |
|---|---|
| Unique Entity ID (UEI) | MKKHGNXJA6V9 |
| CAGE code | 6SG73 |
| Location | Charleston, SC |
| SAM.gov registration | Active through May 26, 2027 |
| Business started | 2012 |
| Primary NAICS code | 541330: Engineering Services |
| Website | www.fathom4.com |
| How to contact | Through its website above. No phone or email in SAM.gov's public file. Search UEI MKKHGNXJA6V9 in SBA's Small Business Search for a contact the business added. |
Certifications and business types
No SBA certification (8(a), HUBZone or WOSB) in SAM.gov's public file (Nov 1, 2026).
- Service-disabled veteran-owned (self-reported in SAM.gov)
- Veteran-owned (self-reported in SAM.gov)
SBA certifications let a business compete for set-aside contracts (set-asides explained). Check the current record on its SAM.gov entry.
How to check or correct this record
The file sometimes leaves a certification out, and a newer one won't be in it yet. Self-reported business types are what the firm says about itself on SAM.gov; they aren't SBA certifications. This page doesn't show SBA's VetCert certification for veteran-owned firms; SBA's search below does.
Check or correct this record at the source: open its SAM.gov entry, or search UEI MKKHGNXJA6V9 () in SAM.gov's entity search (free sign-in) and in SBA's Small Business Search (formerly DSBS), which shows SBA certifications including VetCert. The business can update its details in its SAM.gov registration and its certifications at certifications.sba.gov.
NAICS codes Fathom 4 LLC is small under
On its SAM.gov registration, Fathom 4 LLC meets the SBA size standard for these industries, so it can bid on small business set-asides that use them.
- 541330 Engineering Services
- 332322 Sheet Metal Work Manufacturing
- 334220 Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing
- 335929 Other Communication and Energy Wire Manufacturing
- 541511 Custom Computer Programming Services
- 541512 Computer Systems Design Services
- 541513 Computer Facilities Management Services
- 541519 Other Computer Related Services
- 541611 Administrative Management and General Management Consulting Services
- 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)
Open contracts in Fathom 4 LLC's NAICS codes
469 open federal opportunities on SAM.gov use one of Fathom 4 LLC's NAICS codes and may be open to it: no set-aside, or, in the codes it is registered small under, a small business set-aside or one for a status it reports about itself on SAM.gov (service-disabled veteran-owned). Here are a few, those in its primary code first, then those in South Carolina, then the soonest due.
Confirm eligibility first. Fathom 4 LLC's service-disabled veteran-owned status is self-reported on SAM.gov, and this page can't confirm an SBA certification for it, so set-asides for it may be relevant but may not be open to it: SDVOSB and VOSB set-asides need SBA VetCert certification. SBA's Small Business Search shows a firm's current certifications.
- Market Survey for E3 Services Support of C6ISR Systems
Due in 4 daysNov 10, 2026, 12:00 PM EST
- Independent Commissioning Agent (Owner’s Advocate) Services for U.S. Army Medical Research Institute of Infectious Diseases
✦ The Defense Health Agency is doing market research (a Sources Sought / Request for Information, not a solicitation) for an independent Commissioning Agent, or "Owner's Advocate",…
Due in 3 daysNov 9, 2026, 12:00 PM EST
- Ngats Software Support
✦ The Army Contracting Command at Picatinny Arsenal, NJ, is doing market research (a sources sought notice, not a request for offers) to find firms that can provide software…
Due in 3 daysNov 9, 2026, 4:00 PM EST
- AN/AAR-47 Missile Warning System
✦ Sources sought (market research, not a request for offers): the Air Force wants to find businesses that can repair and return AN/AAR-47 Missile Warning System parts, with Warner…
Due in 3 daysNov 9, 2026, 4:00 PM EST
- Worldwide AE Support Services
✦ The Department of State, for its Bureau of Overseas Buildings Operations (OBO), plans to award multiple (potentially eight or more) indefinite delivery/indefinite quantity (IDIQ)…
Due in 4 daysNov 10, 2026, 1:00 PM EST
Similar small businesses
Other small businesses of a similar size with the same primary NAICS code (541330) that have won federal contracts in South Carolina:
- Commit Enterprises Inc, North Charleston, SC
- Nexgen Data Systems Inc, North Charleston, SC
- ITC Defense Corp, North Charleston, SC
- The Cameron Bell Corporation, Mount Pleasant, SC
- Seres Engineering & Services LLC, Charleston, SC
- SA3 Construction Management LLC, Mount Pleasant, SC
Is this your business? Get a reminder before the SAM.gov registration expires
Get a reminder before the SAM.gov registration expires. It's active through May 26, 2027. We'll email you 60, 30 and 7 days ahead, and if it lapses.
Frequently asked questions
What is Fathom 4 LLC's CAGE code?
Fathom 4 LLC's CAGE code is 6SG73. The Defense Logistics Agency assigns CAGE codes when a business registers on SAM.gov.
What is Fathom 4 LLC's UEI?
Fathom 4 LLC's Unique Entity ID (UEI) is MKKHGNXJA6V9. SAM.gov assigns the UEI, and it identifies the business across the federal government.
Is Fathom 4 LLC's SAM.gov registration active?
Yes, as of SAM.gov's public data from Nov 1, 2026, Fathom 4 LLC's registration is active through May 26, 2027. Registrations are renewed every year.
Is Fathom 4 LLC a small business?
Fathom 4 LLC is registered on SAM.gov as small under 10 NAICS codes, including its primary code, 541330. Size is set per NAICS code, so a business can be small for some contracts and not others.
Keep going
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- How to become a government subcontractor
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Registration details come from SAM.gov's public entity extract and contract figures from USAspending.gov. Contact names and street addresses are left out. To change these details, update the registration on SAM.gov. To report a mistake on this page, or to ask us to remove it, email hello@fedready.us with the page address; we reply within 2 business days. For a removal, write from an address at the company.