Interoperable Systems Group LLC
Interoperable Systems Group LLC is a business in Fort Worth, TX registered on SAM.gov to bid on federal contracts. SAM.gov lists it as small under 3 NAICS codes. It has won about $2 million in federal prime contracts since fiscal year 2024, according to USAspending.gov's award records for its UEI, $573,522 of it on contracts where it counted as a small business.
- UEI
- YZWCHHUACZH3
- CAGE code
- 4KZ18
- SAM.gov registration
- Active
Federal contract history
| Fiscal year | Obligated, prime contracts |
|---|---|
| FY2024 | $700,672 |
| FY2025 | $736,851 |
| FY2026 (incomplete) | $563,809 |
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 YZWCHHUACZH3, 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 Air Force ($1.4 million) and Department of the Navy ($615,877).
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 |
|---|---|---|---|
| Aug 6, 2025 | Department of the Navy | Recur mandril maintenance actual pop: 7/5/2025-7/4/2026 | $54,531 |
| Jul 23, 2025 | Department of the Navy | Recur mandril | $140,194 |
| Sep 4, 2024 | Department of the Navy | VX-20 mandril license | $42,355 |
| Aug 2, 2024 | Department of the Navy | Mandril software 2024/2025 | $91,108 |
| Mar 11, 2024 | Department of the Navy | Mandril multilink SW subscription renewal | $52,944 |
| Jan 22, 2024 | Department of the Air Force | Electronic systems management and requirements tool set (ESMART) for tactical data link… | $1.1 million |
Figures are prime contract obligations reported to USAspending.gov. Subcontract work is listed separately below.
Subcontract work reported by primes
Prime contractors reported 9 subcontracts to it worth about $650,774 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 |
|---|---|---|---|---|
| Lockheed Martin Corporation | Department of the Navy, Department of the Air Force | 4 | $332,531 | Oct 1, 2023 |
| J. F. Taylor, Inc. | Department of the Navy | 4 | $287,874 | Mar 18, 2024 |
| The MITRE Corporation | Department of the Army | 1 | $30,369 | Dec 13, 2024 |
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 | Interoperable Systems Group LLC |
|---|---|
| Unique Entity ID (UEI) | YZWCHHUACZH3 |
| CAGE code | 4KZ18 |
| Location | Fort Worth, TX |
| SAM.gov registration | Active through May 21, 2027 |
| Business started | 2004 |
| Primary NAICS code | 541519: Other Computer Related Services |
| Website | www.interoperablesystems.com |
| How to contact | Through its website above. No phone or email in SAM.gov's public file. Search UEI YZWCHHUACZH3 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).
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.
Check or correct this record at the source: open its SAM.gov entry, or search UEI YZWCHHUACZH3 () in SAM.gov's entity search (free sign-in) and in SBA's Small Business Search (formerly DSBS), which shows SBA certifications. The business can update its details in its SAM.gov registration and its certifications at certifications.sba.gov.
NAICS codes Interoperable Systems Group LLC is small under
On its SAM.gov registration, Interoperable Systems Group LLC meets the SBA size standard for these industries, so it can bid on small business set-asides that use them.
Open contracts in Interoperable Systems Group LLC's NAICS codes
84 open federal opportunities on SAM.gov use one of Interoperable Systems Group 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. Here are a few, those in its primary code first, then those in Texas, then the soonest due.
- Pilot Training Transformation Device Support Services IV (PTT DSS IV)
✦ The Air Force's 338th Enterprise Sourcing Squadron wants Pilot Training Transformation (PTT) Device Support Services IV: installing, maintaining and supporting flight training…
Due in 18 daysNov 25, 2026, 3:00 PM CST
- HID ID/Access Cards
Due in 2 daysNov 9, 2026, 7:00 AM CST
- CORP: VCS Standalone IT Support Contract - RFI (VA-27-00012857)
✦ Sources sought notice 36C10B27Q0060 is a request for information (RFI) from the Department of Veterans Affairs (VA) Technology Acquisition Center, not a solicitation, and no…
Due in 2 daysNov 9, 2026, 10:00 AM EST
- Sipr LAN Drops
Due in 2 daysNov 9, 2026, 10:00 AM CST
- 76th SWEG - Tinker Air Force Base (Thunder CAMP)
✦ The Air Force's 76th SWEG at Tinker Air Force Base, Oklahoma, wants to hear from businesses that can provide Microsoft Teams Direct Routing phone services in a GCC High cloud,…
Due in 2 daysNov 9, 2026, 2:00 PM CST
Similar small businesses
Other small businesses of a similar size with the same primary NAICS code (541519) that have won federal contracts in Texas:
- Global Federal Systems (GFS) LLC, San Antonio, TX
- Arayna Technology Solutions LLC, Frisco, TX
- Toklo Technologies, LLC, San Antonio, TX
- Nine Zion LLC, Pflugerville, TX
- Taurean General Services, Incorporated, Boerne, TX
- D2D IT Services LLC, Liberty Hill, TX
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 21, 2027. We'll email you 60, 30 and 7 days ahead, and if it lapses.
Frequently asked questions
What is Interoperable Systems Group LLC's CAGE code?
Interoperable Systems Group LLC's CAGE code is 4KZ18. The Defense Logistics Agency assigns CAGE codes when a business registers on SAM.gov.
What is Interoperable Systems Group LLC's UEI?
Interoperable Systems Group LLC's Unique Entity ID (UEI) is YZWCHHUACZH3. SAM.gov assigns the UEI, and it identifies the business across the federal government.
Is Interoperable Systems Group LLC's SAM.gov registration active?
Yes, as of SAM.gov's public data from Nov 1, 2026, Interoperable Systems Group LLC's registration is active through May 21, 2027. Registrations are renewed every year.
Is Interoperable Systems Group LLC a small business?
Interoperable Systems Group LLC is registered on SAM.gov as small under 3 NAICS codes, including its primary code, 541519. Size is set per NAICS code, so a business can be small for some contracts and not others.
Keep going
- Look up another business's CAGE code or UEI
- Check a SAM.gov registration's status
- How to become a government subcontractor
- Hiring subcontractors? List small businesses by state, NAICS code and certification
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.