Subcontracting opportunities: NAICS 334210, Telephone Apparatus Manufacturing
4 prime contractors held small business subcontracting plans on 15 federal telephone apparatus manufacturing contracts (NAICS 334210) in FY2022–FY2024, worth $120M including options. Only primes that aren't small businesses need these plans, and each one sets goals for work the prime gives to small businesses, so these are the companies looking for small subcontractors in this industry.
- Primes with plans
- 4
- Plan contracts
- 15
- Agencies
- 3
- Total value
- $120M
A free account shows the primes that subcontract 334210 work in your state and the small businesses they hire. Without one, pick your state under Where the work is to see the primes with 334210 plan work there. The “Small business based in” filter on the subcontracts goes by where the small business is, not where the work is.
Primes with subcontracting plans in 334210
Most plan contracts first. Names tagged Profile have a FedReady profile, which shows the NAICS codes a business is registered as small under. “Recent subcontracts” counts the subcontracts each prime reported among the 107 most recent reports in this code.
| Prime contractor | Plan contracts | Value | Main agency | Recent subcontracts |
|---|---|---|---|---|
| Leidos, Inc.Reston, VA | 8 | $38.3M | Department of the Navy | 49$8.9M |
| Serco Inc.Herndon, VA | 5 | $27.7M | Department of the Navy | 38$6.5M |
| Frequentis USA, IncColumbia, MD | 1 | $44.8M | Federal Aviation Administration | — |
| Iron Bow Technologies, LLC ProfileHerndon, VA | 1 | $8.8M | Department of the Air Force | — |
Most large primes have no profile here: find them on their own websites, where they post supplier portals and small business liaison contacts.
Recent subcontracts to small businesses
Of the 107 most recent subcontracts primes reported under NAICS 334210, dated Nov 1, 2023 to Apr 2, 2026, 44 went to small businesses, worth $7.4M. The table shows 40, newest first, from May 28, 2025 back to Nov 14, 2023. It takes no more than 3 from any one prime contract, so a single large program doesn't fill it.
Primes report subcontracts to USAspending.gov months late, so the newest report we read is from Apr 2, 2026, though the newest to a small business we could match to a SAM.gov registration is older. USAspending files each subcontract under its prime contract's NAICS code, not the subcontractor's own work, so some of these jobs look unrelated to 334210.
The state is where the small business is based, not where the work is. To find primes near you, search primes and partners by state (free account).
| Date | Small business | Prime | Amount |
|---|---|---|---|
| May 28, 2025 | Central Precision IncMD | Serco Inc.Department of the Navy | $133K |
| May 27, 2025 | Electronic Metal Fabrication, Inc.CA | Serco Inc.Department of the Navy | $73.6K |
| May 14, 2025 | Central Precision IncMD | Leidos, Inc.Department of the Navy | $47.7K |
| May 9, 2025 | Crystal Group, IncIA | Serco Inc.Department of the Navy | $250K |
| May 6, 2025 | Carr Manufacturing Company, Inc.CA | Serco Inc.Department of the Navy | $103K |
| Apr 30, 2025 | Crystal Group, IncIA | Leidos, Inc.Department of the Navy | $63.1K |
| Apr 16, 2025 | Bisco Industries, Inc.CA | Serco Inc.Department of the Navy | $30.6K |
| Apr 10, 2025 | Thundercat Technology, LLCVA | Serco Inc.Department of the Navy | $73K |
| Apr 4, 2025 | A & J Manufacturing CoCA | Serco Inc.Department of the Navy | $53.3K |
| Mar 31, 2025 | Thundercat Technology, LLCVA | Serco Inc.Department of the Navy | $485K |
| Feb 20, 2025 | Thundercat Technology, LLCVA | Serco Inc.Department of the Navy | $219K |
| Feb 11, 2025 | Potter Electric, Inc.CA | Leidos, Inc.Department of the Navy | $30.3K |
| Feb 11, 2025 | A & J Manufacturing CoCA | Leidos, Inc.Department of the Navy | $60.8K |
| Feb 7, 2025 | Crystal Group, IncIA | Serco Inc.Department of the Navy | $520K |
| Feb 6, 2025 | Thundercat Technology, LLCVA | Serco Inc.Department of the Navy | $154K |
| Feb 5, 2025 | Central Precision IncMD | Leidos, Inc.Department of the Navy | $87.5K |
| Dec 18, 2024 | Crystal Group, IncIA | Leidos, Inc.Department of the Navy | $30.6K |
| Dec 12, 2024 | Thundercat Technology, LLCVA | Serco Inc.Department of the Navy | $69.8K |
| Nov 21, 2024 | Thundercat Technology, LLCVA | Leidos, Inc.Department of the Navy | $421K |
| Nov 14, 2024 | Crystal Group, IncIA | Leidos, Inc.Department of the Navy | $139K |
| Nov 8, 2024 | Powell Electronics, Inc.NJ | Serco Inc.Department of the Navy | $31.8K |
| Nov 8, 2024 | Central Precision IncMD | Serco Inc.Department of the Navy | $87.6K |
| Nov 7, 2024 | Electronic Metal Fabrication, Inc.CA | Serco Inc.Department of the Navy | $44.8K |
| Nov 6, 2024 | G. C. Micro CorporationCA | Leidos, Inc.Department of the Navy | $41.1K |
| Nov 1, 2024 | Electronic Metal Fabrication, Inc.CA | Serco Inc.Department of the Navy | $90 |
| Oct 31, 2024 | Crystal Group, IncIA | Leidos, Inc.Department of the Navy | $707K |
| Oct 25, 2024 | Thundercat Technology, LLCVA | Leidos, Inc.Department of the Navy | $86.4K |
| Oct 16, 2024 | Thundercat Technology, LLCVA | Leidos, Inc.Department of the Navy | $164K |
| Sep 30, 2024 | Thundercat Technology, LLCVA | Serco Inc.Department of the Navy | $209K |
| Sep 20, 2024 | Crystal Group, IncIA | Serco Inc.Department of the Navy | $588K |
| Jul 30, 2024 | Thundercat Technology, LLCVA | Serco Inc.Department of the Navy | $796K |
| Jul 25, 2024 | Central Precision IncMD | Leidos, Inc.Department of the Navy | $132K |
| Jun 11, 2024 | A & J Manufacturing CoCA | Leidos, Inc.Department of the Navy | $41.5K |
| Jun 3, 2024 | Crystal Group, IncIA | Leidos, Inc.Department of the Navy | $133K |
| May 31, 2024 | Crystal Group, IncIA | Leidos, Inc.Department of the Navy | $133K |
| Apr 23, 2024 | Crystal Group, IncIA | Leidos, Inc.Department of the Navy | $140K |
| Mar 15, 2024 | Crystal Group, IncIA | Leidos, Inc.Department of the Navy | $165K |
| Mar 1, 2024 | Crystal Group, IncIA | Leidos, Inc.Department of the Navy | $48.6K |
| Feb 16, 2024 | Thundercat Technology, LLCVA | Leidos, Inc.Department of the Navy | $50.2K |
| Nov 14, 2023 | Crystal Group, IncIA | Leidos, Inc.Department of the Navy | $165K |
Small businesses winning these subcontracts
Counted across all 44 subcontracts to small businesses in these reports, not only the rows in the table above.
- Crystal Group, Inc, IA: 14 subcontracts, $3.4M
- Thundercat Technology, LLC, VA: 12 subcontracts, $2.8M
- Central Precision Inc, MD: 6 subcontracts, $613K
- A & J Manufacturing Co, CA: 4 subcontracts, $215K
- Electronic Metal Fabrication, Inc., CA: 3 subcontracts, $118K
- Carr Manufacturing Company, Inc., CA: 1 subcontract, $103K
- G. C. Micro Corporation, CA: 1 subcontract, $41.1K
- Powell Electronics, Inc., NJ: 1 subcontract, $31.8K
- Bisco Industries, Inc., CA: 1 subcontract, $30.6K
- Potter Electric, Inc., CA: 1 subcontract, $30.3K
Which agencies
| Agency | Plan contracts | Value |
|---|---|---|
| Department of the Navy | 13 | $66M |
| Federal Aviation Administration | 1 | $44.8M |
| Department of the Air Force | 1 | $8.8M |
Where the work is
Where the primes' plan contracts are performed: Virginia (14), Maryland (1).
How to win subcontracts with these primes
- Register in the prime's supplier portal. Most large primes have one, usually under “supplier diversity” or “small business programs” on their website. Buyers search it when they need a subcontractor, so list your NAICS codes, certifications and past work.
- Contact the small business liaison officer. Every prime with a plan names someone to run it. Find them through the supplier portal, or for defense primes in DoD's prime contractor directory. Send a one-page capability statement that names the contracts and agencies you can support.
- Watch SBA's SubNet. Primes post subcontracting solicitations and sources sought notices on SubNet.
- Be easy to vet. Keep your SAM.gov registration active and check that you count as small under 334210's size standard. Certifications such as 8(a), HUBZone, WOSB and SDVOSB count toward the prime's goals, which makes you more valuable to them.
- Get free help. APEX Accelerators introduce small businesses to primes and run matchmaking events. Our guide to becoming a government subcontractor covers the rest.
More on 334210: open contracts and top small-business winners. Primes also post subcontracting opportunities on SBA's SubNet.
Frequently asked questions
What is a small business subcontracting plan?
Under FAR 19.702, a large business that wins a federal contract over $900,000 ($2 million for construction) with subcontracting possibilities must agree to a plan with goals for subcontracting to small businesses, including small disadvantaged, women-owned, HUBZone, veteran-owned and service-disabled veteran-owned firms. The prime reports its progress twice a year in eSRS. Contracts awarded before October 2025 used the older $750,000 and $1.5 million thresholds.
How do I become a subcontractor to these 334210 primes?
Register in the prime's supplier portal (most large primes have one, often called supplier diversity or small business programs), keep your SAM.gov registration active, and send the prime's small business liaison officer a capability statement that names the contracts and agencies you can support. Primes need small subcontractors to meet their plan goals, so being easy to find and easy to vet matters.
Where does this data come from?
Primes and their plan contracts come from SBA's Directory of Federal Government Prime Contractors with Subcontracting Plans for FY2022–FY2024, which is drawn from FPDS. Recent subcontracts come from the subaward reports primes file on USAspending.gov: under FAR 52.204-10, primes report first-tier subcontracts of $40,000 or more (since October 1, 2025; $30,000 before that). A subcontractor is shown as a small business when it has an active SAM.gov registration as small under at least one NAICS code, or an SBA certification.
Source: SBA's directory of prime contractors with subcontracting plans (FY2022–FY2024, from FPDS) and USAspending.gov subaward reports. Contact names are never shown. Values are base plus all options, not what has been paid.