Capstan Systems
Capstan Inc. is a third-generation, family-owned powder metallurgy manufacturer producing porous metal filters and near-net-shape structural components for automotive, aerospace, medical, and agriculture customers from three facilities in California and Mexico.
- Company typePrivate
- Founded1956
- HeadquartersGardena, United States
- Headcount501–1,000
- GTM typeB2B
- OfferingHardware or Manufacturing
What Capstan Systems does
Capstan Inc. (doing business as Capstan Systems) is a third-generation, family-owned powder metallurgy manufacturer founded in 1956 by Don Paullin and headquartered in Gardena, California. The company produces ferrous and non-ferrous precision components through a powder metal sintering process in which compacted metal powder is heated just below its melting point, using mechanical multi-level presses ranging from 2 to 800 tons. Capstan operates two core product lines: (1) porous metal filters under the proprietary Capstan Permaflow brand — sintered stainless steel, bronze, copper-nickel, and nickel alloy filters for liquid and gas filtration, sparging, flow control, sensor protection, and exhaust silencing, with pore sizes from 0.2 µm to 250 µm; and (2) near-net-shape structural components including precision gears (AGMA Level 7), armatures, pole pieces, flanges, and complex multi-level parts. Three wholly-owned manufacturing facilities — Capstan California, Capstan Permaflow (both in the Los Angeles area), and Capstan Mexico (Guadalajara, established 1996) — produce components in stainless steel 300/400 series, bronze, copper alloys, soft-magnetic blends, and Inconel, with secondary operations (machining, heat treat, grinding, impregnation) performed in-house.
The company serves enterprise customers across automotive (its largest end-market), aerospace, medical/healthcare, agriculture, and industrial/consumer segments. Named customers include Boeing, Airbus, Ford, Caterpillar, John Deere, GE, and NASA/JPL. Capstan's porous filters were qualified for the Mars Curiosity Rover's MSL Drill, and during the COVID-19 pandemic the company supplied 50,000 porous metal filters to Ford's 100-day ventilator program. Capstan California and Capstan Mexico hold ISO 9001:2015 certification; the company is pursuing IATF-16949 automotive certification for California by 2025. Recognition includes the 2019 MPIF Grand Prize in the Automotive – Engine Category for an AGMA Level 7 stainless-steel brush-less DC actuator gear.
Capstan generates revenue through project-based custom manufacturing on a quote-based pricing model, with quotations produced by sales and engineering teams based on part complexity, material selection, volume, and required secondary operations. Distribution is direct B2B enterprise field sales with a 24-hour quote response cadence, supported by a website-driven lead funnel. The company has remained privately held throughout its 70+ year history, has not raised external funding, and has historically grown and contracted through acquisitions and divestitures — including acquisitions of SinterMetals (1987), Remington PM (1993), the Caterpillar PM division (2004), and Melling Sintered Metals (~2013), and divestitures of Capstan Inland (1997), Capstan Tennessee (2013), and Capstan Atlantic (turned into an employee ESOP in 2023 and renamed Atlantic Sintered Metals).
Capstan Systems firmographics
Firmographics- Name
- Capstan Systems
- Legal name
- Capstan Inc.
- Website
- https://capstan.com
- Company type
- Private
- Founded year
- 1956
- Operating status
- Operating
- Headcount range
- 501–1,000 employees
- Short description
- Capstan Inc. is a third-generation, family-owned powder metallurgy manufacturer producing porous metal filters and near-net-shape structural components for automotive, aerospace, medical, and agriculture customers from three facilities in California and Mexico.
- Ownership category
- akta.pro rank
Capstan Systems industry classification
Industry- Product category
- Powder Metallurgy Manufacturing
- NAICS
- Powder Metallurgy Part Manufacturing (332117)
- SIC
- Metal Forgings & Stampings (3460)
- akta.pro primary industry
- Seals, Gaskets & Fluid Connectors (O-rings, packings, rotary seals, quick couplers) (IMAHAGAI)
Keywords
Where Capstan Systems is headquartered
LocationHeadquarters
- HQ city
- Gardena
- HQ country
- United States
- HQ region
- North America
Offices3 records
Markets served
Capstan Systems business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Supply Chain, Operations, Personnel, Technology or R&D, Marketing or Sales, Infrastructure
Revenue model
- Custom Powder Metal Component Manufacturing: Manufactures custom precision powdered metal gears, porous metal filters, and complex structural components. Revenue is generated through project-based orders where customers provide specifications for custom parts, with pricing based on complexity, materials, volume, and secondary operations required.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Other | Multi-year contract | Quote-based custom manufacturing pricing |
Go-to-market motion1 record
Distribution channels3 records
Marketing channels4 records
Capstan Systems product offering
Product offeringCore offering
Capstan manufactures custom precision ferrous and non-ferrous components through powder metallurgy. The company operates two core product lines: Porous Metal Filters (sintered stainless steel, bronze, and nickel alloy filters for liquid/gas filtration, sparging, flow control, sensor protection, and silencing) and Structural Components (near-net-shape powder metal parts such as gears, armatures, pole pieces, flanges, and micro components). Production is supported by mechanical presses from 2 to 800 tons, in-house secondary operations, and three manufacturing locations in California and Guadalajara, Mexico.
Product overview
Capstan is a precision powder metallurgy manufacturing company offering two core product lines: Porous Metal Filters (sintered filters for filtration, sparging, flow control, sensor protection, and silencing in bronze, stainless steel, and nickel alloys) and Structural Components (near-net-shape powder metal parts including gears, armatures, and custom components for automotive, aerospace, and agriculture). The company operates through three manufacturing locations (Capstan California, Capstan Permaflow, and Capstan Mexico) and provides secondary operations including heat treating, grinding, and finishing services. Materials include stainless steel 300/400 series, bronze, copper alloys, soft magnetic blends, and Inconel, with capabilities spanning 0.5 to 250 micron filtration grades.
Differentiator
Problem solved
Functional benefit
Products and services
- Porous Metal Filters
Quantifiable outcome
- Rigorous testing of 24 million cycles passed for award-winning gear product
- +1 more outcomes
Companies that use Capstan Systems
Customer profileNamed customers6 records
Segments5 records
Ideal customer profiles4 records
Capstan Systems technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature4 records
Capstan Systems partnerships and signals
Strategic signalPartnerships
Five partnerships are on record, tiered core, minor and flagship.
- Ford Motor CompanycoreFord selected Capstan as a vendor during the COVID-19 pandemic to assist in producing 50,000 ventilators in 100 days. Capstan supplied high-quality porous metal filters used in ventilators, working with Ford and other essential manufacturing businesses since early April 2020.
- General Electric (GE)minorGE collaborated with Ford and other manufacturers during COVID-19 ventilator production. Capstan's filters were part of this ventilator production ecosystem supporting GE's medical equipment manufacturing efforts.
- Vast-ExcoreVast-Ex, automation experts, built custom cells for housing Capstan's Epson 6-Axis C4L robots. They built the design from the ground up including custom robot grippers, HMI programming, tray sensors, and check lasers to make the system fully operator error proof.
- NASA Jet Propulsion LaboratoryflagshipNASA/JPL approached Capstan for porous metal solution for Mars Curiosity Rover. Capstan provided twelve stainless steel porous metal HEPA disks surrounding the cover plate to the MSL Drill. The filters enabled the drill to equalize internal pressure with the Martian environment while preventing dust contamination. The rover traveled 570 million kilometers and has successfully acquired powdered rock samples using its drill.
- EpsoncoreEpson supplied 6-Axis C4L robots for Capstan's manufacturing lines. The C4L combines compact wrist design with slimline body to maximize motion flexibility while keeping weight down. This robotic automation helps combat high labor wages in Los Angeles manufacturing.
Scale indicators5 records
Recent moves8 records
Expansion highlights5 records
Capstan Systems competitors and assessment
Company assessmentBroad incumbents
- Mersen: Global industrial manufacturer with powder metal / sintered components capabilities alongside electrical and corrosion-resistant materials. Comparable end markets in industrial and aerospace with broader product scope than Capstan.
- Höganäs AB: Swedish-headquartered global leader in metal powders for powder metallurgy, also producing finished PM components. Comparable to Capstan as a powder metallurgy specialist, with broader materials portfolio and global reach.
- Dowlais (GKN Powder Metallurgy): Owns the former GKN Powder Metallurgy business, the world's largest PM parts maker serving global automotive OEMs. Comparable to Capstan in powder metal structural components and gears, but at substantially greater scale and global reach.
Direct peers
- Catalus Corporation: North American powder metal parts producer specializing in precision components for automotive, industrial, and consumer markets. Directly comparable to Capstan's structural PM components business with similar scale and customer mix.
- Stackpole International: A leading North American powder metal parts manufacturer producing precision gears, structural components, and fluid power components for automotive and industrial customers. Directly comparable to Capstan's powder metallurgy structural components business.
- ASCO Sintering: US-based powder metal parts manufacturer with structural and porous filter capabilities serving aerospace, defense, and industrial customers. Directly comparable to Capstan's precision sintered components and porous technology offerings.
- Webster-Hoff Corporation: North American powder metal parts manufacturer producing structural and gear components for industrial markets. Comparable to Capstan's gear and structural PM offerings with overlapping precision component capabilities.
- Phoenix Sintered Metals: US-based powder metal parts manufacturer serving automotive, industrial, and consumer markets with precision structural components. A comparable regional competitor in sintered PM parts to Capstan.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks6 records
Key highlights7 records
Customer concentration
Capstan Systems social profiles
Digital presenceCapstan Systems compliance and trust
Trust signalCompliance2 records
Capstan Systems financial estimates
Financial estimateRevenue estimate
Valuation estimate
Capstan Systems leadership team
Management profileNumber of profiles
Profiles10 records
Capstan Systems subsidiaries and ownership
Company hierarchySubsidiaries3 records
Capstan Systems funding detail
Funding detailFunding overview
Funding rounds1 record
Investors6 records
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Capstan Systems M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Capstan Systems
What does Capstan Systems do?
Capstan manufactures custom precision ferrous and non-ferrous components through powder metallurgy. The company operates two core product lines: Porous Metal Filters (sintered stainless steel, bronze, and nickel alloy filters for liquid/gas filtration, sparging, flow control, sensor protection, and silencing) and Structural Components (near-net-shape powder metal parts such as gears, armatures, pole pieces, flanges, and micro components). Production is supported by mechanical presses from 2 to 800 tons, in-house secondary operations, and three manufacturing locations in California and Guadalajara, Mexico.
Is Capstan Systems a public or private company?
Capstan Systems is a private company. It is classified as family owned and is currently operating.
When was Capstan Systems founded?
Capstan Systems was founded in 1956. It employs 501 to 1,000 people.
Where is Capstan Systems based?
Capstan Systems is headquartered in Gardena, United States, in the North America region.
How does Capstan Systems make money?
One revenue line is on record: custom Powder Metal Component Manufacturing.
Who are Capstan Systems's main competitors?
Broad incumbents on record are Mersen, Höganäs AB and Dowlais (GKN Powder Metallurgy). Direct peers are Catalus Corporation, Stackpole International, ASCO Sintering, Webster-Hoff Corporation and Phoenix Sintered Metals.
Does Capstan Systems have an API?
No public API is recorded for Capstan Systems.
What industry is Capstan Systems in?
Capstan Systems's product category is Powder Metallurgy Manufacturing. Its primary akta.pro industry code is IMAHAGAI, Seals, Gaskets & Fluid Connectors (O-rings, packings, rotary seals, quick couplers). Its NAICS code is 332117 and its SIC code is 3460.