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Great Lakes Crystal Technologies INC

4942 Dawn Ave, Ste 118, East Lansing, MI 48823

ACTIVELAST SEEN IN FEDERAL DATA OCT 2026 · 3 SOURCES

Operating signal within 12 months from two or more independent sources.

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Homepage of Great Lakes Crystal Technologies INC
Their homepage, crawled JUL 2026

What they make

Semiconductor and Related Device Manufacturing334413
  • ultra high-quality diamond substrates
  • proprietary CVD reactor
  • growth processes
  • reactors
  • GLCT leverages
  • 35+ years
  • Timothy Grotjohn
  • Computer Engineering

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

Where it is

42.72545, -84.45112 · CENSUS TIGER
COUNTY
METRO AREA
ON GOOGLE MAPS
STREET VIEW

Other plants nearby

FacilityCityIndustryStatusDistance
Lectronix INCLansingPrinted Circuit Assembly (Electronic Assembly) Manufacturing
334418
 UNVERIFIED8.6 KM
Toledo Commutator COOwossoOther Electronic Component Manufacturing
334419
 LIKELY ACTIVE35.7 KM

Every listed plant in Ingham 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 HNVFQ4KLBMF4 · first seen DEC 2025 · last seen DEC 2025
  • EPA Facility Registry ServiceEXISTENCE
    Record 110071307563 · first seen AUG 2022 · last seen AUG 2022

ALSO RECORDED ASGREAT LAKES CRYSTAL TECHNOLOGIES

IN INGHAM COUNTY1 other plant shares this one’s industry (Semiconductor and Other Electronic Component Manufacturing, NAICS 3344); 1 of them has 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: GREAT LAKES CRYSTAL TECHNOLOGIES · JUL 2026
SAM.gov: GREAT LAKES CRYSTAL TECHNOLOGIES INC · DEC 2025 · ON THIS PAGE
Street address
EPA: 4942 DAWN AVE · JUL 2026 · ON THIS PAGE
SAM.gov: 4942 DAWN AVE · DEC 2025 · ON THIS PAGE
City
EPA: EAST LANSING · JUL 2026 · ON THIS PAGE
SAM.gov: EAST LANSING · DEC 2025 · ON THIS PAGE
State
EPA: MI · JUL 2026 · ON THIS PAGE
SAM.gov: MI · DEC 2025 · ON THIS PAGE
County (FIPS code)
EPA: 26065 · SEP 2026
Coordinates
Census geocoder: 42.725447091568,-84.451119367441 · JUL 2026 · ON THIS PAGE
EPA: 42.725178,-84.451161 · JUL 2026 · ON THIS PAGE
Website
SAM.gov: glcrystal.com · DEC 2025
CAGE code
SAM.gov: 8DZF3 · DEC 2025
SAM registration expires
SAM.gov: 2026-12-01 · DEC 2025

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