M.a.r.'s Engineering Company, INC.

What they make

• M.A.R
• screw machine products
• single spindle screw machines
• CNC milling machines
• machining
• grinding
• prototyping
• San Leandro
• Bay Area

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

Where it is

Other plants nearby

Facility	City	Industry	Status	Distance
Betterway LLC	San Leandro	Hardware Manufacturing 332510	● ACTIVE	1.3 KM
AFApplied Fusion, LLC	San Leandro	Other Fabricated Wire Product Manufacturing 332618	◐ LIKELY ACTIVE	1.5 KM
Alpha Magnetics, INC	Hayward	Capacitor, Resistor, Coil, Transformer, and Other Inductor Manufacturing 334416	● ACTIVE	8.0 KM
Inland Marine Industries INC	Hayward	Sheet Metal Work Manufacturing 332322	● ACTIVE	8.5 KM
Thermionics Laboratory, INC.	Hayward	Semiconductor Machinery Manufacturing 333242	● ACTIVE	8.6 KM

Every listed plant in Alameda 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 CA-CERS, CA-ENVIROVIEW, HWTS-DATAMART, RCRAINFO, TRIS · EPA site type STATIONARY.

• The company’s own websiteOPERATING
  first seen JUL 2026 · last seen OCT 2026
• SAM.gov entity registrationOPERATING
  Record KEEEH5AP4PK9 · first seen SEP 2025 · last seen SEP 2026
• EPA Facility Registry ServiceEXISTENCE
  Record 110002147061 · first seen DEC 2015 · last seen DEC 2015

ALSO RECORDED ASM A R 'S ENGINEERING CO

IN ALAMEDA COUNTY106 other plants share this one’s industry (Machine Shops; Turned Product; and Screw, Nut, and Bolt Manufacturing, NAICS 3327); 27 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: M A R 'S ENGINEERING CO · JUL 2026

SAM.gov: M.A.R.'S ENGINEERING COMPANY, INC. · SEP 2026 · ON THIS PAGE

Street addressSOURCES DISAGREE

EPA: 699 MONTAGUE AVE. · JUL 2026

SAM.gov: 699 MONTAGUE ST · SEP 2026 · ON THIS PAGE

City

EPA: SAN LEANDRO · JUL 2026 · ON THIS PAGE

SAM.gov: SAN LEANDRO · SEP 2026 · ON THIS PAGE

State

EPA: CA · JUL 2026 · ON THIS PAGE

SAM.gov: CA · SEP 2026 · ON THIS PAGE

County (FIPS code)

EPA: 06001 · SEP 2026

Coordinates

EPA: 37.71171,-122.15422 · JUL 2026

Website

SAM.gov: https://www.marseng.com/ · SEP 2026

CAGE code

SAM.gov: 91NW1 · SEP 2026

SAM registration expires

SAM.gov: 2027-09-15 · SEP 2026