Seiler Instrument and Manufacturing Company, Incorporated

3433 Tree Court Industrial Blvd, Saint Louis, MO 63122

LIKELY ACTIVE1 SOURCELAST SIGNAL JAN 2026

Operating signal within 24 months, or from a single source.

Location

ADDRESS

3433 Tree Court Industrial Blvd
Saint Louis, MO 63122

COORDINATES

Location not verified — this address could not be matched to Census TIGER, so the facility is not placed on the map.

PRIMARY NAICS

ALSO CLASSIFIED

332721 332999 333514 333613 333995 334220 334419 334511 334519 336992 423490 513210 541360 541370 611420 811210

EMPLOYMENT

Not reported

SOURCE	EVIDENCE	FIRST SEEN	LAST SEEN
SAM GOV	OPERATING	JAN 2026	JAN 2026

Status is computed from independent sources; nothing here is self-reported unless marked Claimed.