Seiler Instrument & Mfg. Co., Inc.

3433 Tree Court Industrial Blvd, St. Louis, MO 63122

ACTIVELAST SEEN IN FEDERAL DATA OCT 2026 · 4 SOURCES

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

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What they make

Commercial and Service Industry Machinery Manufacturing333314

Products

Made or handled here · 5

Colposcope (And Colpomicroscope) · Lamps, Microscope · Light, Microscope · Loupe, Diagnostic/Surgical · Microscope, Surgical

Where these came from

5 from FDA device registration · Federal registry

FDA device establishment 1927430, product code HEX; proprietary names: Model 955 Series Colposcope, Model 935 Series Colposcope, Model 985 Series Colposcope

Where it is

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

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Other plants nearby

No other listed facility within 40 km shares this one’s four-digit industry code, or this record has no coordinates to measure from.

Also at this address

No other federal record shares this street address.

Where this record comes from

4 sources hold this plant, and 5 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.

FDA device establishment registrationsOPERATING
first seen SEP 2026 · last seen OCT 2026
OSHA injury and illness reportsOPERATING
Record 741043 · first seen DEC 2025 · last seen DEC 2025
DOL Form 5500 retirement plan filingsOPERATING
Record 430707162|MO|63122|3433 tree ct industrial blvd · first seen DEC 2024 · last seen DEC 2024
SBA Paycheck Protection Program loan recordsEXISTENCE
Record MO|saint louis|3433 tree ct industrial blvd · first seen APR 2020 · last seen APR 2020

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.

Employees (band): OSHA: 100-499 · DEC 2025
Year established: CO SOS: 2026 · SEP 2026
Retirement plan filing (Form 5500): DOL: 245 active participants, plan year ending 2024-12-31, 2 plan(s) · DEC 2024
PPP loan: SBA PPP: PPP loan x1, approved 2020-04-08, 225 jobs reported · APR 2020
State business registrationSOURCES DISAGREE: CO SOS: Seiler Instrument and Manufacturing Company, Incorporated, registered with the Colorado Secretary of State; Corporation; formed 2026-09-29; active · SEP 2026; MS SOS: Seiler Instrument and Manufacturing Company, Incorporated, registered with the Mississippi Secretary of State; Corporation; registered 2026-01-20; active · JAN 2026

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