Systems Engineering Support Co.
Systems Engineering Support Co. received $7.9M in federal prime contract obligations in the 12 months ending Oct 5, 2026, down 72.4% from $28.8M the year before, and $77.6M since FY2022. Its largest customer is the Department of Defense.
See 2 contracts ending in the next 18 months ↓Contractor details
- Unique Entity ID (UEI)
- WH4DRDKB7RR8
- CAGE code
- 03HN2
- Doing business as
- Sesco
- Headquarters
- SAN Diego, CA
- Business size
- Small Business
- Socioeconomic status
- Veteran-owned
As recorded on this UEI's most recent prime contract action in USAspending.gov. Confirm current registration and certifications in SAM.gov.
Obligations by fiscal year
Net prime contract obligations by federal fiscal year.
Top agencies
Funding agencies ranked by obligations since FY2022.
| Funding agency | Latest 12 mo | Since FY2022 |
|---|---|---|
| Department of Defense | $7.9M | $77.6M |
| Department of Justice | $0 | $15K |
Top NAICS codes
Industry codes agencies recorded on this contractor's awards, since FY2022.
| NAICS | Industry | Latest 12 mo | Since FY2022 |
|---|---|---|---|
| 334511 | Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing | $8.2M | $70.4M |
| 334111 | Electronic Computer Manufacturing | $0 | $4.8M |
| 334290 | Other Communications Equipment Manufacturing | −$278K | $2.1M |
| 334419 | Other Electronic Component Manufacturing | $8K | $120K |
| 334220 | Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing | $0 | $69K |
| 334515 | Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals | $0 | $21K |
What it sells
Product and service codes (PSC) on this contractor's awards, since FY2022.
| PSC | Description | Since FY2022 |
|---|---|---|
| 5825 | Radio Navigation Equipment, Except Airborne | $70.4M |
| 5342 | Hardware, Weapon System | $4.8M |
| N059 | Installation of Equipment- Electrical and Electronic Equipment Components | $2.3M |
| 5985 | Antennas, Waveguides, and Related Equipment | $290K |
| 5915 | Filters and Networks | $80K |
| 5998 | Electrical and Electronic Assemblies, Boards, Cards, and Associated Hardware | $16K |
Contracts ending in the next 18 months
This contractor's largest awards whose current period of performance ends soon. Options and extensions often move these dates.
| Award | Agency | Obligated | Current end |
|---|---|---|---|
| N0003925F2119 | Department of Defense SAASM CONFIGURATION B1 | $21.1M | Oct 29, 2026 |
| N0003926FB058 | Department of Defense BULK BUY #1 FOUR (4) MGUE CONFIGURATION B VARIANT 1 (V)4 GPNTS PRODUCTION UNITS, ONE (1) ACNS KIT, AND ONE (1) ACNS KIT INSTALLATION) | $4.3M | May 29, 2027 |
Recent awards
This contractor's newest prime contract awards, most recent first.
| Award | Agency | Obligated | Awarded |
|---|---|---|---|
| N0003926FB058 | Department of Defense BULK BUY #1 FOUR (4) MGUE CONFIGURATION B VARIANT 1 (V)4 GPNTS PRODUCTION UNITS, ONE (1) ACNS KIT, AND ONE (1) ACNS KIT INSTALLATION) | $3.3M | Jun 29, 2026 |
| N0003926FB058 | Department of Defense BULK BUY #1 FOUR (4) MGUE CONFIGURATION B VARIANT 1 (V)4 GPNTS PRODUCTION UNITS, ONE (1) ACNS KIT, AND ONE (1) ACNS KIT INSTALLATION) | $1.1M | Jun 29, 2026 |
| N0003926F9604 | Department of Defense AUTOMATED DIGITAL NETWORK SYSTEM (ADNS) MAC | $5K | May 22, 2026 |
| SPE7M526V3753 | Department of Defense 8512023518!FILTER ASSEMBLY,ELE | $8K | Apr 9, 2026 |
| HQ085926FF206 | Department of Defense THE CONTRACTOR SHALL PROVIDE ALL NECESSARY MATERIALS, LABOR, EQUIPMENT AND FACILITIES INCIDENTAL TO THE PERFORMANCE OF THIS REQUIREMENT IN ACCORDANCE WITH THE TERMS OF THE ORDER. | $500 | Dec 19, 2025 |
| N6600126F0041 | Department of Defense OBLIGATION OF MINIMUM GUARANTEE | $10K | Dec 9, 2025 |
| N0003926F2002 | Department of Defense SPARES #2 DO #13 | $2.9M | Dec 2, 2025 |
| N0003926F2002 | Department of Defense SPARES #2 DO #13 | $766K | Dec 2, 2025 |
Prime contracts (award types A–D) from USAspending.gov through Oct 5, 2026. Subcontracts are not included. Net obligations include deobligations and corrections.
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