REX SYSTEMS INCORPORATED
Doing business as REX SYSTEMS INC CAGE 59475 UEI KDYKNKBV6QZ3 CHIPPEWA FALLS, WI SAM active until 2026-12-17 rexsystems.com ↗
REX SYSTEMS INCORPORATED (CAGE 59475) appears as the awardee on 2 indexed government parts awards across 2 federal supply classes, most recently in Nov 2026.
About
RSI, based in Chippewa Falls, Wisconsin, engineers, manufactures, and tests military electronic components and assemblies, including build-to-print spares and build-to-specification systems. The company states it has served as prime contractor on thousands of U.S. military contracts and operates a 60-acre industrial campus. Its legacy products include radar, sonar, communication radio, and IFF-related assemblies. It describes itself as a small business and reports an ISO 9001:2015 certification and NIST SP 800-171 compliance.
Products
- Military electronic assemblies
- Military electronic spare parts
- Radar assemblies
- Submarine sonar assemblies
- Tactical communication radio assemblies
- Identification Friend or Foe transponder sets
Capabilities
- Electronic manufacturing and repair
- Test and engineering
- Sustainment support
- Design and development
- Reverse engineering
- Environmental stress testing
- Reliability testing
- Short-run manufacturing
Certifications named on its site
- ISO 9001:2015
- NIST SP 800-171 compliant
Founded 1973, according to its website.
Summary of rexsystems.com pages read October 20, 2026, written automatically; check the company's site for details. Pages read: Home | Rsi2018, Contact Us | Rsi2018, About | Rsi2018, Capabilities | Rsi2018.
Contact
- Address
- 10684 43RD AVE
CHIPPEWA FALLS, WI 54729 - Points of contact in SAM.gov
-
- NICOLE KORNESCZUK Government Business POC
- WHITNEY EMERSON Alternate Government Business POC
- WHITNEY EMERSON Past Performance POC
- NICOLE KORNESCZUK Alternate Past Performance POC
- WHITNEY EMERSON Electronic Business POC
- BRIAN LYNN Alternate Electronic Business POC
- Phone, from its website
- (715) 723-9313 from rexsystems.com
- Email, from its website
- admin@rexsystems.com from rexsystems.com
Address and points of contact are the public record in SAM.gov, last updated December 18, 2025 (find it on SAM.gov). Phone and email are as the company publishes them on its own website.
Registration
- SAM.gov status
- Active
- Registered
- Aug 3, 2001
- Expires
- Dec 17, 2026
- Last updated
- Dec 18, 2025
- Business started
- Mar 3, 1973
- Structure
- Other
- State of incorporation
- WI
- Business types
- For Profit Organization
- Subchapter S Corporation
- Manufacturer of Goods
- Product and service codes registered
- 1005
- 1010
- 1015
- 1020
- 1025
- 1035
- 1045
- 1090
- 1190
- 1210
- 1220
- 1230
- 1240
- 1260
- 1270
- 1285
- 1290
- 1355
- 1420
- 1440
- 1680
- 2540
- 2590
- 3010
- 3020
- 4140
- 4920
- 4921
- 4935
- 5305
- 5310
- 5340
- 5355
- 5805
- 5820
- 5840
- 5841
- 5845
- 5865
- 5905
- 5910
- 5915
- 5930
- 5935
- 5940
- 5945
- 5950
- 5961
- 5962
- 5963
- 5975
- 5977
- 5985
- 5995
- 5998
- 5999
- 6110
- 6130
- 6150
- 6240
- 6625
- 6920
- J010
- J011
- J016
- J017
- J020
- J023
- J028
- J059
- K010
- K011
- K013
- K014
- K016
- K017
- K020
- K025
- K028
- K029
- K059
| NAICS | Primary | Size standard |
|---|---|---|
| 334220 | — | |
| 334416 | — | |
| 334418 | Primary | — |
| 334419 | — | |
| 334511 | — | |
| 334515 | — | |
| 334516 | — | |
| 334519 | — |
Source: SAM.gov public entity data (SAM_PUBLIC_MONTHLY_V2_20261013.ZIP) · SAM.gov record ↗
Performance
Last 12 months against the 12 before
| Period | Awards | Award dollars |
|---|---|---|
| Last 12 months | 2 | $74,876 |
| Prior 12 months | 0 | — |
Award dollars in the last 12 months compare with none recorded in the 12 months before.
Rank among suppliers
- Award dollars, last 12 months#1,290
- Award dollars, all time#1,290
- Awards won, last 12 months#1,768
- Awards won, all time#1,768
- Distinct NSNs#1,715
- Distinct supply classes#1,346
Awards by month
How much has this supplier been awarded each month? Last 24 months.
Months by award date. Dollars add each award's recorded total, or unit price times quantity.
Top parts
The NSNs this supplier appears on most often in the indexed awards.
| NSN | Item | Awards | Award dollars | Latest award |
|---|---|---|---|---|
| 7025-01-233-6461 | SENSE MODULE | 1 | $66,915 | Nov 6, 2026 |
| 5998-00-356-0007 | CIRCUIT CARD ASSEMBLY | 1 | $7,961 | Sep 21, 2026 |
Supply classes
Federal supply classes of the NSNs in this supplier's indexed awards, with the number of awards in each.
Open bids for parts they make
14 part numbers are listed for CAGE 59475 in the federal catalog (FLIS). None of those NSNs has an open solicitation today.
Parts listed for this supplier (14)
| NSN | Item | Part number |
|---|---|---|
| 5840-01-048-0367 | RADAR SET SUBASSEMBLY | 914573-1 |
| 5840-01-048-0368 | RADAR SET SUBASSEMBLY | 914575-1 |
| 5915-00-189-1323 | FILTER,RADIO FREQUENCY INTERFERE | 395463-1 |
| 5930-00-111-8551 | SWITCH,CODE INDICATING WHEEL | 6280D36510-0002 |
| 5930-00-111-8551 | SWITCH,CODE INDICATING WHEEL | GD4460-2 |
| 5930-01-166-7142 | SWITCH,ROTARY | 5190438 |
| 5985-00-432-0503 | COUPLER,DIRECTIONAL | GC5807 |
| 5985-00-432-0503 | COUPLER,DIRECTIONAL | GD5807 |
| 5998-00-356-0007 | CIRCUIT CARD ASSEMBLY | 62A114-C105 |
| 5998-01-623-5304 | CIRCUIT CARD ASSEMBLY | 7306000 |
| 5999-00-995-1392 | CONTACT,ELECTRICAL | 2004869-0703 |
| 5999-01-163-7564 | I O CONTROL LOAD | 928386 |
| 5999-01-163-7564 | I O CONTROL LOAD | 928386-1 |
| 7025-01-233-6461 | SENSE MODULE | 5100-767 |
All awards
| NSN | Awarded | Item | Qty | Unit price | Total | Agency | Source |
|---|---|---|---|---|---|---|---|
| 7025-01-233-6461 | Nov 6, 2026 | SENSE MODULE | 5 | $13,382.95 | $66,915 | — | Source ↗ |
| 5998-00-356-0007 | Sep 21, 2026 | CIRCUIT CARD ASSEMBLY | 1 | $7,961.33 | $7,961 | — | Source ↗ |
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About this data
- Awards come from DLA DIBBS award records and other indexed award records; each row links to its source.
- The supplier's name and location come from the public CAGE file in DLA's PUB LOG.
- Registration, address and points of contact come from SAM.gov public entity data. Phone, email and the website summary come from the company's own website, read by NSNExplorerBot (how it behaves).
- This list covers the awards NSN Explorer has indexed, not everything this supplier has won.
- Award dollars add each award's recorded total, or unit price times quantity when no total is recorded; awards with neither are not counted.
- Data last refreshed: 2026-11-08.
- Totals and ranks as of Nov 8, 2026.
- Full methodology →
Cite this page
NSN Explorer. "REX SYSTEMS INCORPORATED." nsnexplorer.com, https://nsnexplorer.com/supplier/59475/. Data as of November 8, 2026.
https://nsnexplorer.com/supplier/59475/