Verified Nov 2026
Electronics & Software
·
St. Peters, Missouri
·
Since 1957
Seyer Industries, Inc. is a family-owned manufacturer headquartered in St. Peters, Missouri, founded in 1957. It has an estimated 200-500 employees and an estimated $10-50M in revenue, and it is privately held. The company serves the aerospace, defense, automotive, electric-vehicle, industrial equipment, and military sectors. Among its recent developments, Seyer Industries added a second Starrag STC 1800 machining center in 2026 to expand its aerospace machining capacity.
Seyer Industries, Inc. at a glance
Revenue
$10-50M
Est. band
Employees
200-500
Founded
1957
Headquarters
St. Peters, Missouri
Certifications
AS9100 · ISO 9001 · ITAR registered · Nadcap
Import activity
81
Industries
Automotive
Electric Vehicles
Military & Defense
Industrial Equipment
Aerospace
Sourcing and import activity
From US customs bill-of-lading records
US sea imports
81
Named foreign suppliers
33
Top origins
China · Germany · South Korea
Shared foreign counterparties do not establish that these companies buy from Seyer Industries, Inc..
What this tells a buyer
Seyer Industries has been operating for nearly 70 years, and in 2026 it reported new investments intended to expand its capabilities in its target markets.
The company offers precision CNC machining, Nadcap-certified welding, assembly, chemical processing, and non-destructive testing, and it holds AS9100, ISO 9001, ITAR registration, and Nadcap certifications.
As a privately held, family-owned business with an estimated 200-500 employees, Seyer Industries supplies commercial aerospace OEMs and the U.S. Department of Defense.
Source: US customs bill-of-lading records and public filings · Last verified Nov 05, 2026
STABILITY SIGNALS
Established & active
69 years in operation (founded 1957).
Holds AS9100, ISO 9001, ITAR registered, Nadcap certification(s) per public sources.
Overview
Seyer Industries, Inc. is a family-owned manufacturer headquartered in St. Peters, Missouri, founded in 1957. It has an estimated 200-500 employees and an estimated $10-50M in revenue, and it is privately held. The company serves the aerospace, defense, automotive, electric-vehicle, industrial equipment, and military sectors. Among its recent developments, Seyer Industries added a second Starrag STC 1800 machining center in 2026 to expand its aerospace machining capacity.
At a glance
Attribute | Detail |
|---|---|
Founded | 1957 |
Headquarters | St. Peters, Missouri |
Employees | 200-500 |
Revenue | $10-50M (estimated) |
Primary capability | Electronics & Software |
Certifications | AS9100 · ISO 9001 · ITAR registered · Nadcap |
What Seyer Industries, Inc. makes
The company offers precision CNC machining, Nadcap-certified welding, assembly, chemical processing, and non-destructive testing, and it holds AS9100, ISO 9001, ITAR registration, and Nadcap certifications.
Products and capabilities described on the company's own site include Machining, Welding, Assembly, Aluminum, Steel (source: seyerind.com).
Certifications
Seyer Industries, Inc. is associated with the following certifications in public sources. Confirm the certified scope for the specific plant producing your part:
AS9100 — seyerind.com
ISO 9001 — seyerind.com
ITAR registered — aero-mag.com
Nadcap — aero-mag.com
Trade and customs footprint
Seyer Industries has been operating for nearly 70 years, and in 2026 it reported new investments intended to expand its capabilities in its target markets. US customs bill-of-lading records list 81 inbound shipments across 33 foreign suppliers, with top origins including China · Germany · South Korea.
Latest developments
2026-10-07 — Seyer Industries’ latest investments have enhanced its capabilities and enabled growth in its target markets (manufacturing-today.com)
2026-09-23 — Seyer Industries, a family business for nearly 70 years, is building the future of flight | Greater St. Louis, Inc. (greaterstlinc.com)
2026-09-16 — Actuator, Hydraulic- — Awarded $231K to SEYER INDUSTRIES, INC. | FedOps (fedops.com)
2026-09-01 — Seyer Industries Expands Aerospace Machining Capacity with Second Starrag STC 1800! - MTDCNC - The home of CNC milling. turning, 5 axis and precision machining (mtdcnc.com)
2026-08-31 — Starrag Machining Center Expands Capacity for Aerospace, Defense Manufacturer | Modern Machine Shop (mmsonline.com)
2026-04-07 — From a farmer's garage to the frontlines of aerospace (aero-mag.com)
Company details
As a privately held, family-owned business with an estimated 200-500 employees, Seyer Industries supplies commercial aerospace OEMs and the U.S. Department of Defense. Seyer Industries, Inc. was founded in 1957, has an estimated 200-500 employees, and is headquartered in St. Peters, Missouri. On the LightSource stability read it is rated "Established & active": 69 years in operation (founded 1957). Holds AS9100, ISO 9001, ITAR registered, Nadcap certification(s) per public sources.
Frequently asked questions
What does Seyer Industries, Inc. make?
Seyer Industries, Inc. is a family-owned manufacturer headquartered in St. Peters, Missouri, founded in 1957. It has an estimated 200-500 employees and an estimated $10-50M in revenue, and it is privately held. The company serves the aerospace, defense, automotive, electric-vehicle, industrial equipment, and military sectors. Among its recent developments, Seyer Industries added a second Starrag STC 1800 machining center in 2026 to expand its aerospace machining capacity.
Where is Seyer Industries, Inc. headquartered?
Seyer Industries, Inc. is headquartered in St. Peters, Missouri (66 Patmos Ct, St. Peters, Missouri, 63376-3903).
When was Seyer Industries, Inc. founded?
Seyer Industries, Inc. was founded in 1957.
How big is Seyer Industries, Inc.?
Seyer Industries, Inc. has an estimated 200-500 employees, with revenue in the $10-50M range (estimated).
What certifications does Seyer Industries, Inc. hold?
Seyer Industries, Inc. lists AS9100 · ISO 9001 · ITAR registered · Nadcap on its website. Confirm the certified scope for the specific plant producing your part.
Does Seyer Industries, Inc. import from overseas suppliers?
US customs bill-of-lading records show 81 inbound shipments for Seyer Industries, Inc., with top origins including China · Germany · South Korea.
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Last verified Nov 2026. Is this your company? Request a correction.
Location & contact
Phone
+1 636-928-1190
Certification
AS9100 · ISO 9001 · ITAR registered · Nadcap
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