What API International does

API International, Inc. is a Tualatin, Oregon-based manufacturer and wholesale distributor of industrial piping components, founded approximately in 1980 and operating for 45+ years. The company produces steel and stainless steel flanges, expansion joints, valve accessories, pipe fittings, and custom-machined parts to AWWA, ANSI/ASME, and DIN specifications, with both domestic (Buy American Act / American Iron and Steel compliant) and imported material options. Core manufacturing capability combines forging (ring rolling for sizes 2" to 202"), multiple casting methods (centrifugal, sand, investment/lost-wax), and in-house CNC machining that delivers 700+ machined-to-spec parts per year and an estimated 18,000+ custom products annually. The company maintains a U.S. warehouse footprint (Oregon headquarters and Indiana product support facility) enabling same-day/next-day shipping across all 50 U.S. states, Canada, and Mexico, with 575,000+ flanges shipped and 10,000+ orders processed annually at a reported 99.5% order accuracy rate.

The business model is a hybrid of made-to-stock distribution and project-based custom manufacturing. Standard catalog items are sold one-time via direct sales (an account team and inside sales) and an e-commerce storefront (apiint.com/shop/), while custom machined solutions are quoted per project with collaborative design refinement and multi-year blanket-order arrangements available for long-term partners, including Net 90 payment terms. The customer base of 1,500+ unique buyers spans waterworks and municipal water (primary), HVAC, marine, mining, agriculture, exhaust, energy and power generation, data centers, and lumber — a horizontal segmentation approach. Pricing is not publicly disclosed and is handled on a quote basis. The company holds Ecovadis Top 35% sustainability certification and BBB A+ accreditation, with no disclosed parent company, institutional investors, or external funding, indicating continued independent private ownership.

Name

API International

Legal name

API International, Inc.

Website

https://apiint.com

Company type

Private

Founded year

1980

Operating status

Operating

Headcount range

51–100 employees

Short description

API International is a Tualatin, Oregon-based manufacturer and wholesale distributor of industrial steel and stainless steel flanges, expansion joints, valve accessories, pipe fittings, and custom-machined parts, serving waterworks, HVAC, marine, mining, agriculture, energy, data center, and exhaust customers across North America.

Ownership category

akta.pro rank

Headquarters

HQ city

Tualatin

HQ country

United States

HQ region

North America

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Flange and Pipe Fitting Product Sales: API International manufactures and sells a wide variety of industrial steel flanges (AWWA, ANSI/ASME, DIN standards), expansion joints, valve accessories, and pipe fittings. Products are offered in both domestic (AIS/BABA compliant) and imported materials. Revenue is generated through one-time product sales with both in-stock and custom-to-order fulfillment.
2. Custom Machining Services: The company provides custom machining services through its in-house machine shop, creating precision steel components to exact customer specifications from prototypes to full production runs. This adds a value-added service layer on top of standard product sales.

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels6 records

Core offering

API International manufactures and wholesale distributes industrial steel and stainless steel flanges, expansion joints, valve accessories, pipe fittings, and custom-machined components to AWWA, ANSI/ASME, and DIN standards. The company operates an in-house machine shop for custom-built-to-specification parts and stocks standard products in U.S. warehouses for same-day/next-day distribution across North America, serving waterworks, HVAC, marine, mining, agriculture, energy, and exhaust system customers.

Product overview

API International is a manufacturer and wholesale distributor of industrial piping components. The core product portfolio centers on steel flanges (including AWWA C207/C228, ANSI/ASME B16.5, B16.47, and DIN EN 1092-1 standards) offered alongside expansion joints, valve accessories, pipe fittings (including the KLAMPz Grooved Piping System), and custom machining services. These products serve waterworks, HVAC, marine, mining, agriculture, energy, and industrial manufacturing sectors, with options for both domestic (AIS/BABA compliant) and imported materials. Custom machining capabilities complement the standard product offerings, enabling machined-to-spec parts and custom flange solutions.

Differentiator

Problem solved

Functional benefit

Products and services

• Steel and Stainless Steel Flanges
• AWWA C207 Flanges Carbon steel ring flanges for waterworks service meeting AWWA C207 specifications with pressure classes B, D, E, and F (up to 300 psi). For municipal water utilities, treatment plants, and water distribution infrastructure.
• AWWA C228 Flanges Stainless steel pipe flanges for water service meeting AWWA C228 specifications with pressure classes SA, SB, SD, SE, and SF (up to 300 psi). For corrosion-resistant water service applications.
• ASME B16.5 Flanges Steel and stainless steel flanges for pipe sizes 1/2" to 24" meeting ASME B16.5 specifications in pressure classes 150 through 2500. For industrial process piping, oil and gas, and power generation.
• ASME B16.47 Flanges Large diameter steel flanges for pipe sizes NPS 26 through 60 meeting ASME B16.47 specifications in pressure classes 75, 150, 300, 400, 600, and 900. For large-scale industrial and pipeline applications.
• DIN EN 1092-1 Flanges PN-rated steel and stainless steel flanges meeting DIN EN 1092-1 European standard specifications in PN10, PN16, PN25, PN40, PN63, and PN100 ratings. For European-spec industrial piping applications.
• Expansion Joints Rubber expansion joints, accessories, and pump connectors for industrial piping systems to absorb movement, vibration, and thermal expansion. For waterworks, HVAC, and industrial piping.
• Valve Accessories Valve extensions for butterfly valves and related accessories for industrial valve applications.
• Pipe Fittings and Accessories Various pipe fittings and accessories including elbows, couplings, and fabricated assemblies for industrial applications.
• KLAMPz Grooved Piping System Grooved piping system components including fittings and accessories for quick-assembly piping connections.
• Custom Machining Services In-house custom manufacturing services including custom flange solutions, machined-to-spec parts, and precision components from prototype to full production runs. Over 700 machined-to-spec parts are created each year. Capabilities include forging (ring rolling 2-202"), castings (centrifugal, sand, investment/lost-wax), and precision machining (milling, turning, facing, boring, drilling, tapping, laser cutting, water jet, plasma cutting). Also includes seamless rolled rings (1" to 165") and fabricated assemblies (2" to 24").
• Flange Gaskets Gaskets for flange connections including molded, extruded, and sheet types in EPDM, Buna-N, NBR, Non-Asbestos, Red Rubber, and Viton materials.
• Closeout Products Discounted flanges and fittings offered at reduced prices from clearance inventory.

Quantifiable outcome

• 99.5% order accuracy rate
• +4 more outcomes

Named customers9 records

Segments8 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Scale indicators8 records

Recent moves6 records

Expansion highlights6 records

Emerging players

• Trupply: Online distributor of pipe, valves, fittings, and flanges with e-commerce-led GTM targeting contractors and small industrial buyers. Overlaps with API's e-commerce storefront and product range.

Broad incumbents

• ASC Engineered Solutions: Designer and manufacturer of pipe fittings, supports, and engineered solutions for mechanical, plumbing, fire protection, and industrial markets. Overlaps on pipe fittings, couplings, and accessories sold into similar customer channels.
• Ferguson Enterprises: Largest North American distributor of plumbing, HVAC, and industrial products. API International competes with Ferguson for project-level procurement of flanges, valves, and fittings in the waterworks and mechanical contractor channel.
• Victaulic: Global manufacturer of mechanical pipe-joining systems, fittings, and couplings used in commercial, industrial, and infrastructure piping. Adjacent competitor with overlap in mechanical joint solutions and customer verticals.
• Mueller Industries: Diversified manufacturer of copper, brass, aluminum, and plastic products including plumbing and industrial pipe fittings. Adjacent incumbent with overlap in fittings and water-related end markets.
• Anvil International (formerly Hackney Ladish): Large-scale manufacturer of pipe fittings, pipe hangers, valves, and flanges for mechanical, industrial, fire-protection, and oil & gas markets. Significantly larger incumbents in the same product category with broader portfolio.

Direct peers

• Weldbend Corporation: Manufacturer of carbon and stainless steel flanges and butt-weld pipe fittings to ASME and ANSI standards. Highly comparable in product mix (forged and plate flanges), customer base (waterworks, industrial, energy), and standards portfolio (ASME B16.5/B16.9).
• Coast To Coast Flanges: U.S.-based flange supplier and manufacturer offering standard and custom flanges across ANSI, ASME, and AWWA specifications. Overlaps with API International on product range, standards focus, and distribution model.
• Texas Flange: Flange manufacturer and distributor serving oil & gas, petrochemical, and industrial customers with AWWA, ASME, and API-spec products. Closely aligned end-market exposure and standards portfolio.
• Bonney Forge: Manufacturer of forged steel fittings, unions, and flanges for industrial, energy, and shipbuilding markets. Comparable product set (ASME-spec fittings and flanges), end-market exposure, and distribution through industrial channels.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

• Xx.com/apiint_US
• YouTubeyoutube.com/channel/UCeMCucz4ZP0v0ZSUvandV0A
• Facebookfacebook.com/APIInternationalUS
• LinkedInlinkedin.com/company/api-international
• Instagraminstagram.com/api_international?igsh=NnJ2NWIyZjk4bmpu

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

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 API International