Verified Nov 2026
CNC Machining
·
Maplewood, Missouri
·
Since 1924
Sunnen Products Company is a manufacturer of precision honing systems, bore finishing tools, and related machining equipment, headquartered in Maplewood, Missouri. Founded in 1924, it employs an estimated 500 to 1,000 people with estimated annual revenue of $100 to 250 million. The company is privately held and serves the automotive, aerospace, and industrial-equipment sectors. Among recent activity, it announced a collaboration with TIBO Tiefbohrtechnik in 2026 on deep-hole machining solutions.
Sunnen Products Company at a glance
Revenue
$100-250M
Est. band
Employees
500-1,000
Founded
1924
Headquarters
Maplewood, Missouri
Import activity
74
Industries
Automotive
Industrial Equipment
Aerospace
Sourcing and import activity
From US customs bill-of-lading records
US sea imports
74
Named foreign suppliers
16
Top origins
China · Netherlands · Belgium · Germany
Shared foreign counterparties do not establish that these companies buy from Sunnen Products Company.
What this tells a buyer
Sunnen reported five recent public developments in 2026, the most recent being a machine buy-back program announced in March 2026 according to Engine Builder Magazine.
Its product range covers machining, tooling, and forged component work, and its primary capability is CNC machining, with no certifications listed in the record.
Its reported industries are automotive, industrial equipment, and aerospace, and its revenue and headcount figures are estimated bands rather than confirmed values.
Source: US customs bill-of-lading records and public filings · Last verified Nov 05, 2026
Overview
Sunnen Products Company is a manufacturer of precision honing systems, bore finishing tools, and related machining equipment, headquartered in Maplewood, Missouri. Founded in 1924, it employs an estimated 500 to 1,000 people with estimated annual revenue of $100 to 250 million. The company is privately held and serves the automotive, aerospace, and industrial-equipment sectors. Among recent activity, it announced a collaboration with TIBO Tiefbohrtechnik in 2026 on deep-hole machining solutions.
At a glance
Attribute | Detail |
|---|---|
Founded | 1924 |
Headquarters | Maplewood, Missouri |
Employees | 500-1,000 |
Revenue | $100-250M (estimated) |
Primary capability | CNC Machining |
What Sunnen Products Company makes
Its product range covers machining, tooling, and forged component work, and its primary capability is CNC machining, with no certifications listed in the record.
Products and capabilities described on the company's own site include Machining, Tooling, Forged, Valve, Brake, Steering, Gear (source: sunnen.com).
Trade and customs footprint
Sunnen reported five recent public developments in 2026, the most recent being a machine buy-back program announced in March 2026 according to Engine Builder Magazine. US customs bill-of-lading records list 74 inbound shipments across 16 foreign suppliers, with top origins including China · Netherlands · Belgium · Germany.
Latest developments
2026-09-03 — Explore Sunnen’s Advanced Innovations in Honing, Metrology, Tooling, a – Sunnen Products Company (sunnen.com)
2026-08-13 — Advances in Honing, Gaging and Deep-Hole Machining | Sunnen Products Co., IMTS 2026 | American Machinist (americanmachinist.com)
2026-08-03 — Sunnen Products Company to Collaborate on Deep Hole Machining Solutions With TIBO Tiefbohrtechnik | Aviation Pros (aviationpros.com)
2026-04-16 — Sunnen Products Company and TIBO Tiefbohrtechnik Form Strategic Allian (sunnen.com)
2026-03-13 — Sunnen Launches Machine Buy-Back Program - Engine Builder Magazine (enginebuildermag.com)
2026-01-07 — Sunnen Products Company Announces Launch of PGA-1000 Air Gage: Develop (sunnen.com)
Facilities
Sunnen Products Company is headquartered in Maplewood, Missouri. Public sources also reference these locations:
Austria, Belgium — sunnen.com
Company details
Its reported industries are automotive, industrial equipment, and aerospace, and its revenue and headcount figures are estimated bands rather than confirmed values. Sunnen Products Company was founded in 1924, has an estimated 500-1,000 employees, and is headquartered in Maplewood, Missouri.
Frequently asked questions
What does Sunnen Products Company make?
Sunnen Products Company is a manufacturer of precision honing systems, bore finishing tools, and related machining equipment, headquartered in Maplewood, Missouri. Founded in 1924, it employs an estimated 500 to 1,000 people with estimated annual revenue of $100 to 250 million. The company is privately held and serves the automotive, aerospace, and industrial-equipment sectors. Among recent activity, it announced a collaboration with TIBO Tiefbohrtechnik in 2026 on deep-hole machining solutions.
Where is Sunnen Products Company headquartered?
Sunnen Products Company is headquartered in Maplewood, Missouri (7910 Manchester Road, Maplewood, Missouri, 63143).
When was Sunnen Products Company founded?
Sunnen Products Company was founded in 1924.
How big is Sunnen Products Company?
Sunnen Products Company has an estimated 500-1,000 employees, with revenue in the $100-250M range (estimated).
Does Sunnen Products Company import from overseas suppliers?
US customs bill-of-lading records show 74 inbound shipments for Sunnen Products Company, with top origins including China · Netherlands · Belgium · Germany.
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Last verified Nov 2026. Is this your company? Request a correction.
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