Aotco Metal Finishing, LLC

Doing business as Aotco Metal Finishing

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www.aotco.com

Their homepage, crawled JUL 30, 2026

At a glance

Employees100-499

In business sinceNot reported

Industry

Metal Coating, Engraving (except Jewelry and Silverware), and Allied Services to Manufacturers

HeadquartersBillerica, MA

SAM.gov UEIRB79HL1BFRF3

CAGE code9R199

Incorporated inDE

Brands

Northrop

This company sells these brands.

metal finishing services
anodizing
chem film
electroplating
electropolishing
passivation
powder coating
aluminum
copper
steel
exotic metals
aerospace

Named on the company’s own website, read JUL 29, 2026

Products

33 PRODUCTS

From Aotco Metal Finishing, LLC’s own catalogs and data sheets · read October 12, 2026 · not verified by FactoryRegistry

AnodizeProduct line · 8 products Black OxideProduct line Bright DipProduct line Cadmium PlatingProduct line Conversion Coating (Chemical Film)Product line Copper CoatingProduct line · 1 product ElectroplatingProduct line · 2 products Laser MarkingProduct line Nickel CoatingProduct line · 3 products PassivationProduct line Platinum PlatingProduct line Rhodium CoatingProduct line · 1 product Silver CoatingProduct line · 1 product Tin CoatingProduct line · 3 products

CareersCareers page — seen SEP 8, 2026

Supplier designations

For Profit Organization

Self-certified by the company in its SAM.gov registration

Their plant

Facility	City	State	Employees	Status
Aotco Metal Finishing, LLC	Billerica	MA	100–499	ACTIVE

Compiled from federal records — EPA, OSHA, SAM.gov and the U.S. Census — and from the company’s own website. Federal source data is public domain. Each plant’s page names the source of every field.