Rainwater Holdings, INC

What they make

• composite honeycomb core materials
• single cure step
• avoiding
• secondary adhesives
• Aerospace

NAMED ON THE COMPANY’S OWN WEBSITE, READ JUL 29, 2026

Where it is

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TITesla INC	Lathrop	Battery Manufacturing 335910	◐ LIKELY ACTIVE	13.1 KM
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Andrew Industries, LLC.	Modesto	Other Communication and Energy Wire Manufacturing 335929	● ACTIVE	30.5 KM
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Every listed plant in San Joaquin County

Also at this address

No other federal record shares this street address.

Where this record comes from

3 sources hold this plant, and 9 fields on this page come from them. Each line is one agency’s own record of it: the identifier it is filed under, whether that record shows the plant operating or only that it exists, and when the register first and last saw it there.

EPA cross-references this facility in RCRAINFO · EPA site type STATIONARY.

• The company’s own websiteOPERATING
  first seen JUL 2026 · last seen OCT 2026
• SAM.gov entity registrationOPERATING
  Record U955GA8N9AR5 · first seen OCT 2025 · last seen OCT 2025
• EPA Facility Registry ServiceEXISTENCE
  Record 110070420205 · first seen DEC 2018 · last seen DEC 2018

ALSO RECORDED ASRAINWATER HOLDINGS INC DBA ULTRA COR

IN SAN JOAQUIN COUNTY7 other plants share this one’s industry (Other Electrical Equipment and Component Manufacturing, NAICS 3359); 0 of them have a size band on record.

What each source says

Every field below, as each source filed it. The value this page shows is marked; where the sources disagree, the field says so. Status is computed from independent sources; nothing here is self-reported unless marked Claimed.

NameSOURCES DISAGREE

EPA: RAINWATER HOLDINGS INC DBA ULTRA COR · JUL 2026

SAM.gov: RAINWATER HOLDINGS, INC · OCT 2025 · ON THIS PAGE

Street address

EPA: 2763 BOEING WAY · JUL 2026 · ON THIS PAGE

SAM.gov: 2763 BOEING WAY · OCT 2025 · ON THIS PAGE

City

EPA: STOCKTON · JUL 2026 · ON THIS PAGE

SAM.gov: STOCKTON · OCT 2025 · ON THIS PAGE

State

EPA: CA · JUL 2026 · ON THIS PAGE

SAM.gov: CA · OCT 2025 · ON THIS PAGE

County (FIPS code)

EPA: 06077 · SEP 2026

CoordinatesSOURCES DISAGREE

Census geocoder: 37.911004793369,-121.231801041337 · JUL 2026 · ON THIS PAGE

EPA: 37.910988,-121.231358 · JUL 2026

Website

SAM.gov: www.ultracorinc.com · OCT 2025

CAGE code

SAM.gov: 5TSH8 · OCT 2025

SAM registration expires

SAM.gov: 2026-10-10 · OCT 2025