What RubberMill does

RubberMill is a custom manufacturer of non-metallic component parts, specializing in die-cut rubber products, insulation parts, gasket seals, and molded rubber components. Founded in 1987 and headquartered in Liberty, North Carolina, the company produces quantities ranging from 1,000 to over 10 million units per order and serves OEM customers across appliance/HVAC, transportation (automotive, RV, heavy equipment, marine, rail, motorcycle/off-road, tire), and specialized industrial applications. The company's technical foundation spans in-house die cutting (dieless cutter and steel rule die making for rapid prototyping), contract lamination, custom molded rubber production, and full assembly/contract manufacturing services, supported by materials expertise across nonwovens, solid and sponge rubbers, foam, and pressure-sensitive adhesives.

RubberMill is ISO 9001:2015 registered, NSF certified, and holds WBENC (Women's Business Enterprise National Council) and WOSB (Women-Owned Small Business) certifications, the latter two renewed as recently as 2025 and 2026 respectively. These certifications provide OEM customers with supplier-diversity credit, particularly within transportation supply chains where minority representation targets are common.

The business operates on a quote-based (RFQ) sales model, engaging customers directly through website-driven RFQ submission and supported by technical resource content (chemical resistance charts, material property guides). Revenue is transactional — one-time custom-manufactured part sales — with pricing determined per project based on specifications, materials, tooling, and volume. The go-to-market motion is sales-led, focused on direct OEM engagement across four stated vertical segments (OEM, Appliance/HVAC, Transportation, Specialized Applications), with distribution limited to North America. The company has 51–100 employees, operates multiple manufacturing locations for responsive delivery, and has no disclosed institutional funding, parent company, or M&A activity.

Name

RubberMill

Legal name

RubberMill, Inc.

Website

https://rubbermill.com

Company type

Private

Founded year

1987

Operating status

Operating

Headcount range

51–100 employees

Short description

RubberMill is a custom manufacturer of non-metallic component parts — including die-cut rubber products, insulation parts, gaskets, seals, and molded rubber components — serving OEM customers across appliance/HVAC, transportation, and specialized industrial applications with order sizes from 1K to 10M+ units.

Ownership category

akta.pro rank

Headquarters

HQ city

Liberty

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Custom Rubber Parts Manufacturing: Manufacture and supply of custom non-metallic component parts including gaskets, seals, insulation parts, molded balls, rubber grommets, and lab stoppers. Revenue generated through direct sales to OEM customers with quantities ranging from 1K to 10M+ units.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels2 records

Core offering

RubberMill manufactures custom rubber and non-metallic component parts, including gaskets, seals, insulation parts, molded balls, rubber grommets, and lab stoppers, for OEM customers. The company supports production quantities from 1,000 to over 10 million units using in-house die cutting, steel rule die making, contract lamination, custom molded rubber, and assembly/contract manufacturing capabilities.

Product overview

RubberMill is a custom parts manufacturer for OEMs, offering a portfolio of precision-engineered rubber and non-metallic components. The product portfolio includes Gaskets & Seals, Insulation Parts, Molded Balls, Rubber Lab Stoppers, Rubber Grommets, and Clean Out Balls as core product offerings. Supporting these products are manufacturing capabilities including Die Cutting, Contract Lamination, Custom Molded Rubber, and Assembly & Contract Manufacturing services. The company works with quantities from 1K to 10M+ and serves industries including OEM, Appliance/HVAC, Transportation, and Specialized Applications.

Differentiator

Problem solved

Functional benefit

Products and services

• Gaskets & Seals Custom-manufactured gasket and seal components for OEM applications, designed to provide reliable sealing solutions across various industrial and commercial uses.
• Insulation Parts Non-fiberglass thermal and acoustical insulation materials for appliance, HVAC, and transportation applications.
• Molded Balls Precision molded balls including sponge clean out balls and precision ground rubber nitrile balls for industrial applications.
• Rubber Lab Stoppers Laboratory-grade rubber stoppers available in all sizes for scientific and research applications.
• Rubber Grommets Custom molded rubber grommets for protecting wires, cables, and other components in various applications.
• Clean Out Balls Sponge clean out balls for pipeline and equipment cleaning applications in industrial settings.
• Die Cutting & Other Cutting Capabilities Precision die cutting and other cutting services for converting materials into custom shapes using dieless cutter and steel rule die making for quick turnarounds on custom parts.
• Contract Lamination Lamination services for combining multiple materials and substrates to create custom composite solutions for OEM customers.
• Custom Molded Rubber Products Custom rubber molding services producing molded parts tailored to specific OEM requirements for various industries.
• Assembly & Contract Manufacturing Contract manufacturing and assembly services including subassemblies and consolidations for complete OEM solutions.

Segments4 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Scale indicators1 record

Recent moves4 records

Expansion highlights4 records

Direct peers

• Elasto Proxy: Custom rubber extruder and molder serving OEM customers with seals, gaskets, and molded rubber components. Closely comparable to RubberMill in product mix (custom elastomeric parts), customer base (OEMs), and small-batch-to-high-volume production range.
• Custom Rubber Corp. Manufacturer of custom molded rubber components, gaskets, and seals for industrial OEM applications. Comparable in scale, manufacturing approach (custom molding/die cutting), and direct-to-OEM sales motion.
• Minor Rubber: Custom-molded rubber and rubber products manufacturer serving industrial and OEM customers with grommets, bumpers, seals, and custom molded parts. Directly comparable on product portfolio, custom-molded capabilities, and B2B OEM go-to-market.
• Daemar Inc. Manufacturer and distributor of seals, gaskets, and custom rubber/plastic parts to industrial OEM customers. Comparable in seal/gasket core competency, custom fabrication capabilities, and B2B sales approach.
• Marco Rubber & Plastics Products: Custom manufacturer of rubber and plastic molded parts, gaskets, seals, and o-rings for OEM customers across industrial and transportation markets. Comparable in custom parts focus, materials breadth, and OEM-driven revenue model.
• Ace Rubber Products: Custom molded and extruded rubber products supplier to industrial and OEM customers including gaskets, seals, and vibration-damping components. Comparable in product mix and small-to-mid OEM customer profile.
• CRG (Custom Rubber Group): Custom-molded rubber products manufacturer serving industrial, automotive, and consumer OEM markets. Directly comparable on custom molded rubber capabilities and OEM customer orientation.

Broad incumbents

• Fenner Precision: Manufacturer of precision polymer products including reinforced rubber, silicone, and engineered elastomer components for industrial OEM applications. Competes in adjacent subsegments but offers broader material science capabilities and global reach.
• Parker Hannifin: Fortune-500 diversified manufacturer of motion and control technologies including sealing and rubber-based engineered components. Serves similar OEM customers (industrial, transportation) with broader solutions including hydraulics and pneumatics.
• Trelleborg Sealing Solutions: Global large-scale manufacturer of polymer and rubber sealing solutions serving automotive, industrial, and aerospace OEMs. Overlaps significantly with RubberMill's seal and gasket business, but at much greater scale and with a broader product portfolio spanning hydraulics and engineered polymers.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat3 records

Key risks5 records

Key highlights6 records

Customer concentration

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 RubberMill