St. Paul Foundry

What St. Paul Foundry does

St. Paul Foundry, operating under legal name St. Paul Brass Foundry Company, is a single-site non-ferrous sand casting foundry established in 1869 in Saint Paul, Minnesota, making it the oldest manufacturer in the state. The company produces custom brass, bronze, and aluminum castings using multiple molding processes including greensand, airset (no-bake), shell core, isocure (cold box), oil sand core, and permanent mold casting, with weight capabilities ranging from 1 to 1,200 lbs for brass/bronze and up to 600 lbs for aluminum. It serves industrial customers in aerospace, defense, oil and gas, pump manufacturing, and naval/maritime sectors, as well as commercial markets for refrigeration, power generation, automation, and commemorative bronze plaques, with reported reach across 100+ NAICS codes.

The company holds AS9100D (2016), ISO 9001:2015, ITAR registration, DD 2345 Joint Certification Program certification, TS16949 compliance, and NADCAP-certified NDT including radiography up to X-Ray Grade A Level 1, with CMMC compliance in progress. Production equipment includes an Inductotherm 180 cycle induction melting furnace with 2,000 lb capacity per station, a Hunter HLM-10 automatic molding machine producing up to 180 molds per hour, and a Hall 3HS Tilt-Pour Permanent Mold Machine. Quality is supported by NovaCast NovaFlow and NovaSolid simulation software for defect prediction and twin spectrometers for chemistry verification, with a sand reclamation system achieving 92% reclaimed sand in the airset system and an 87% reduction in landfill waste. The company is privately held and has been owned by Cervus Technologies since its 2011 acquisition.

St. Paul Foundry's go-to-market is direct sales via phone (651-312-4734) and email, with quote-based pricing determined by alloy type, casting complexity, weight, quantity, and special requirements such as NDT, radiography, and heat treatment. Distribution is direct from the single Saint Paul facility on FOB transportation agency terms with 30-day net billing, and no third-party resellers or distribution partners are used. Value-added services including machining, plating, heat treatment, and assembly are offered either in-house or through coordinated partners to provide turnkey solutions. Marketing is minimal, relying primarily on the company's 150+ year reputation, AS9100D/ISO 9001/ITAR/DoD JCP certifications, and direct customer engagement as differentiators.

Name

St. Paul Foundry

Legal name

St. Paul Brass Foundry Company

Website

https://stpaulfoundry.com

Company type

Private

Founded year

1869

Operating status

Operating

Headcount range

1–10 employees

Short description

St. Paul Foundry, Minnesota's oldest manufacturer (since 1869), is a single-site non-ferrous sand casting foundry producing custom brass, bronze, and aluminum castings for aerospace, defense, oil and gas, pump, and naval industrial customers, as well as bronze memorial plaques.

Ownership category

akta.pro rank

Headquarters

HQ city

Saint Paul

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Personnel, Operations, Technology or R&D, Infrastructure

Revenue model

1. Custom Sand Castings: Manufacture of custom brass, bronze, and aluminum sand castings for industrial applications. Production ranges from prototypes and short runs to high volume. Weight range from 1 to 1200 lbs for brass/bronze and up to 600 lbs for aluminum.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

St. Paul Foundry manufactures custom non-ferrous sand castings in brass, bronze, and aluminum alloys for aerospace, defense, naval, oil and gas, and pump industry customers. Production spans prototypes and short runs to high-volume manufacturing, with net casting weights from 1 to 1200 lbs in brass/bronze and up to 600 lbs in aluminum. The company also offers value-added services including machining, plating, heat treatment, NDT, impregnation, hot isostatic processing, and assembly.

Product overview

St. Paul Foundry operates as a single-site non-ferrous foundry specializing in brass, bronze, and aluminum sand castings since 1869. The company's core product portfolio centers on metal castings produced through multiple processes including Greensand Molding, Airset (No-Bake) Molding, Shell Core, Isocure Core, Oil Sand Core, and Permanent Mold Casting. They offer an extensive range of aluminum alloys (200, 300, 500, 700 series) and brass/bronze alloys (red brasses, yellow brasses, silicon bronzes, tin bronzes, aluminum bronzes, copper nickels). Value-Added Services including machining, plating, heat treatment, and assembly complement the core casting products. The company serves specialized vertical markets including Aerospace Castings, Naval Castings, Oil and Gas Castings, and Pump Castings, as well as consumer Bronze Memorial Plaques.

Differentiator

Problem solved

Functional benefit

Products and services

• Brass & Bronze Castings
• Aluminum Castings Aluminum sand castings in 200, 300, 500, and 700 series alloys for aerospace, commercial, and military applications, with heat treatment capabilities and net casting weights up to 600 lbs.
• Aerospace Castings Precision bronze and aluminum castings for military and commercial aircraft, maintenance equipment, and fuel systems, supported by NADCAP-certified NDT including radiography up to X-Ray Grade A Level 1 and DPT/LPT.
• Naval Castings Castings for ships, submarines, and seaborne weapons systems in Navy G (C90300), Navy M (C92200), Copper-Nickel (C96400), and Aluminum Bronzes (C95200-C95800), certified under Joint Certification Program DD 2345 for US and Canadian DoD.
• Oil and Gas Castings Valve castings for pressure control, safety, storage, transmission, and extraction of oil and gas, produced in specified alloys including C83450, C95400, C95500, C90300, C92200, and A356.0, with CE marking for Pressure Equipment Directive compliance.
• Pump Castings Cast pump components including impellers, housings, manifolds, volutes, and suction casings in aluminum, bronze, and cupro-nickel alloys, with expertise in compound curved vanes and double shroud impellers.
• Bronze Memorial Plaques Sand cast bronze commemorative plaques for memorials, landmarks, and architectural installations, available in various bronze and aluminum alloys with bas-relief artwork and patina finishing options.
• Value-Added Services Comprehensive secondary operations including machining, plating, polishing, heat treatment, non-destructive testing, impregnation, hot isostatic processing, coatings, marking, assembly, packaging, and patina finishing, provided as a turnkey service.

Quantifiable outcome

• 87% reduction in landfill waste from sand through reclamation program
• +2 more outcomes

Named customers5 records

Segments6 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Scale indicators5 records

Recent moves8 records

Expansion highlights4 records

Direct peers

• Provident Industries: US foundry group with nonferrous sand casting capabilities serving defense, aerospace, and industrial OEM customers. Comparable on alloy portfolio, defense certifications, and short-run/high-mix casting focus.
• Eagle Alloy Inc. Michigan-based nonferrous foundry specializing in sand and shell mold castings in aluminum, bronze, and copper alloys for aerospace, military, and commercial customers. Comparable product/process overlap and similar DoD supply chain positioning.
• Penn-Mar Castings: Pennsylvania-based iron and steel foundry with nonferrous capability, serving industrial, mining, and railroad end markets. Comparable mid-sized custom foundry business model with similar short-run/high-mix dynamics.
• MetalTek International: Mid-sized US nonferrous foundry producing sand, centrifugal, and investment castings in copper, bronze, aluminum, and stainless alloys for aerospace, defense, and industrial markets. Directly comparable to St. Paul Foundry on alloy breadth, process mix, and defense/naval customer base.
• Quaker City Castings: US nonferrous foundry in Salem, Indiana producing brass, bronze, and aluminum sand castings for similar industrial and government end markets. Closely comparable on alloy portfolio, molding processes, and customer mix (pumps, valves, defense).

Regional players

• Dotson Iron Castings: Minnesota-based iron and steel foundry serving Midwest industrial customers with a longer casting weight range. Adjacent rather than direct on metals (ferrous vs. nonferrous) but overlaps on regional industrial casting demand.

Broad incumbents

• Aero Metals Alliance: Consortium of aerospace forging and casting suppliers serving commercial and military aerospace with aluminum, titanium, and specialty alloy components. A broader incumbent in the aerospace casting/fabrication space that competes for the same NADCAP-grade work.
• Ellwood Group: Larger US specialty steel and iron foundry group with significant aerospace, defense, and oil & gas exposure. Broader portfolio than St. Paul Foundry but overlaps directly on defense casting supply and large component castings.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights1 record

Customer concentration

Compliance7 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about St. Paul Foundry