Three Daughters Corp
Auburn, IN Doing business as Rathburn Precision Machining
- UEI
- SECPR1NJ9M26
- CAGE
- 1SRL2
- Primary NAICS
- 332721 Precision Turned Product Manufacturing
- SAM.gov registration
- Active through
Company facts
- Self-certified in SAM.gov
- Entity structure
- Corporate Entity (Not Tax Exempt)
- Other NAICS codes in SAM.gov
- SAM.gov registration date
- Physical address
- 5005 Co Rd 29, Auburn, IN 46706, USA
- Website
- rathburnmachining.com
- Founded
- 1983
- Industry
-
- Industrials
- Capital Goods
- Industrial Conglomerates
- Industrials & Manufacturing
- SIC code
- 35 Industrial Machinery & Equipment
- Profiles
Registration and certifications come from SAM.gov and the SBA; company details from public web sources. Updated .
Contract obligations by fiscal year
| Fiscal year | Obligated |
|---|---|
| FY2027 To date | $0 |
| FY2026 | $16,550 |
| FY2025 | $2,006 |
Top agencies by obligations
| Rank | Agency | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Defense Logistics Agency | $16,550 |
Contract awards
| Award | Agency | Obligated | Awarded |
|---|---|---|---|
| Retainer, spindle | Aviation (DLA) | $9,759 | |
| Guide, bipod leg | Land and Maritime (DLA) | $6,791 | |
| Hub, body | Land and Maritime (DLA) | $2,006 |
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About the company
Three Daughters Corp, doing business as Rathburn Precision Machining, manufactures precision machined components for the Department of Defense as a prime contractor on small-value purchase orders, operating under no set-aside designation. The company is a woman-owned small business incorporated as a for-profit Subchapter S corporation, headquartered in Auburn, Indiana.
The vendor's federal footprint is nascent and narrow. Three recent awards total $19 thousand in combined potential value, all issued as firm fixed-price purchase orders by the Defense Logistics Agency (DLA) between August 2025 and June 2026. The work spans metal stamping and precision machining of discrete components: a hub body ($2,005.77, awarded August 2025, completed November 2025), a guide bipod leg assembly ($6,791.39, awarded February 2026, scheduled completion March 2027), and a retainer spindle ($9,758.88, awarded June 2026, scheduled completion March 2027). Customer concentration is split across two DLA sub-organizations — DLA Land and Maritime accounts for two awards ($9 thousand combined potential value) and DLA Aviation for one ($10 thousand). All work is performed in Auburn, Indiana.
Two of the three awards (combined potential value $17 thousand) reach ultimate completion within the next twenty-four months and are exposed to recompete. The vendor holds no IDIQs, GWACs, BPAs, or other parent contract vehicles. Activity runs at two awards in 2026 compared to one in 2025, though the absolute scale remains minimal. The vendor operates exclusively as a prime on these low-dollar component procurements with no subcontract footprint in the federal record.
SBA capabilities narrative
ISO 9001 / IATF 16949 / AS9100D compliant precision CNC production machining services in quantities from 1,000 to 200,000+ per year. Materials processed include aluminum, cast iron, steel, brass and stainless steel. Capabilities include CNC milling, CNC turning, four-axis machining, Swiss machining, automated and robotic machining. Secondary services include finishing, testing, assembly and packaging.
Quick answers
Is Three Daughters Corp registered in SAM.gov?
Yes. Three Daughters Corp's SAM.gov registration is active through August 25, 2027.
What is Three Daughters Corp's CAGE code?
Three Daughters Corp's CAGE code is 1SRL2, and its Unique Entity ID (UEI) is SECPR1NJ9M26.
How much has Three Daughters Corp received in federal contracts?
Federal contracts obligated $2,006 to Three Daughters Corp in fiscal year 2025 and $18,556 in fiscal years 2023 through 2027.
What is Three Daughters Corp's most recent federal award?
Three Daughters Corp's most recent federal contract award is Retainer, spindle (SPE4A726PC052), from Aviation (DLA), on June 9, 2026.
On GovTribe
See Three Daughters Corp's full federal record
- Federal contract awards
- Funding analysis by agency, NAICS and set-aside
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