Verified Nov 2026
Metal Fabrication
·
Saint Louis, Missouri
·
Since 1943
Aalberts Surface Technologies – Paulo Heat Treating is a metal fabrication company headquartered in Saint Louis, Missouri, United States, founded in 1943. It employs roughly 500 to 1,000 people and has an estimated annual revenue band of $100 to 250 million. The company is privately owned and provides heat treating, brazing, and metal finishing services to the automotive, electric-vehicle, medical, military-defense, industrial-equipment, and aerospace industries. In October 2026 the company reported an investment of over $9 million in its Windsor Locks, Connecticut facility.
Aalberts surface Technologies - Paulo Heat Treating at a glance
Revenue
$100-250M
Est. band
Employees
500-1,000
Founded
1943
Headquarters
Saint Louis, Missouri
Certifications
IATF 16949 · ISO 9001 · Nadcap
Industries
Automotive
Electric Vehicles
Medical
Military & Defense
Industrial Equipment
Aerospace
STABILITY SIGNALS
Established & active
83 years in operation (founded 1943).
Holds IATF 16949, ISO 9001, Nadcap certification(s) per public sources.
Overview
Aalberts Surface Technologies – Paulo Heat Treating is a metal fabrication company headquartered in Saint Louis, Missouri, United States, founded in 1943. It employs roughly 500 to 1,000 people and has an estimated annual revenue band of $100 to 250 million. The company is privately owned and provides heat treating, brazing, and metal finishing services to the automotive, electric-vehicle, medical, military-defense, industrial-equipment, and aerospace industries. In October 2026 the company reported an investment of over $9 million in its Windsor Locks, Connecticut facility.
At a glance
Attribute | Detail |
|---|---|
Founded | 1943 |
Headquarters | Saint Louis, Missouri |
Employees | 500-1,000 |
Revenue | $100-250M (estimated) |
Primary capability | Metal Fabrication |
Certifications | IATF 16949 · ISO 9001 · Nadcap |
What Aalberts surface Technologies - Paulo Heat Treating makes
The company holds IATF 16949, ISO 9001, and Nadcap certifications, and its Cleveland and Kansas City facilities received Nadcap 24-Month Merit Accreditation for Heat Treating effective 10 February 2026.
Products and capabilities described on the company's own site include Steel, Coating, Brake (source: paulo.com).
Certifications
Aalberts surface Technologies - Paulo Heat Treating is associated with the following certifications in public sources. Confirm the certified scope for the specific plant producing your part:
IATF 16949 — paulo.com
ISO 9001 — paulo.com
Nadcap — linkedin.com
Latest developments
2026-10-30 — Aalberts Invests Over $9 Million In Windsor Locks Facility | Windsor Locks, CT Patch (patch.com)
2026-10-13 — Please join us in welcoming Rob Hess to the AST-Paulo team! 👋 | Aalberts surface technologies - Paulo Heat Treating (linkedin.com)
2026-07-02 — 🔥 Big News from AST-Paulo Kansas City | Aalberts surface technologies (linkedin.com)
2026-03-26 — Our North American family is growing — and we’re proud to welcome AST-Paulo to Aalberts 🌎🤝 | Aalberts surface technologies (linkedin.com)
Facilities
Aalberts surface Technologies - Paulo Heat Treating is headquartered in Saint Louis, Missouri. Public sources also reference these locations:
Mexico — aalberts.com
Company details
The company's record lists facilities in Mexico and describes it as one of the larger privately owned thermal processing platforms in North America, with six facilities across the United States and Mexico. Aalberts surface Technologies - Paulo Heat Treating was founded in 1943, has an estimated 500-1,000 employees, and is headquartered in Saint Louis, Missouri. On the LightSource stability read it is rated "Established & active": 83 years in operation (founded 1943). Holds IATF 16949, ISO 9001, Nadcap certification(s) per public sources.
Frequently asked questions
What does Aalberts surface Technologies - Paulo Heat Treating make?
Aalberts Surface Technologies – Paulo Heat Treating is a metal fabrication company headquartered in Saint Louis, Missouri, United States, founded in 1943. It employs roughly 500 to 1,000 people and has an estimated annual revenue band of $100 to 250 million. The company is privately owned and provides heat treating, brazing, and metal finishing services to the automotive, electric-vehicle, medical, military-defense, industrial-equipment, and aerospace industries. In October 2026 the company reported an investment of over $9 million in its Windsor Locks, Connecticut facility.
Where is Aalberts surface Technologies - Paulo Heat Treating headquartered?
Aalberts surface Technologies - Paulo Heat Treating is headquartered in Saint Louis, Missouri (5711 W Park Ave, Saint Louis, Missouri, 63110-1834).
When was Aalberts surface Technologies - Paulo Heat Treating founded?
Aalberts surface Technologies - Paulo Heat Treating was founded in 1943.
How big is Aalberts surface Technologies - Paulo Heat Treating?
Aalberts surface Technologies - Paulo Heat Treating has an estimated 500-1,000 employees, with revenue in the $100-250M range (estimated).
What certifications does Aalberts surface Technologies - Paulo Heat Treating hold?
Aalberts surface Technologies - Paulo Heat Treating lists IATF 16949 · ISO 9001 · Nadcap on its website. Confirm the certified scope for the specific plant producing your part.
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Last verified Nov 2026. Is this your company? Request a correction.
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