DSM&T

What DSM&T does

DSM&T Company, Inc. is a privately held US contract manufacturer of custom electrical interconnect products, including IP68-rated connectors, overmolded switches, PCB assemblies, and wire harnesses. Founded in 1982 in Lynwood, California and now headquartered in Fontana (42,000 sq ft), the company also operates a 45,000 sq ft secondary production facility in Mexico through DGS Electric and uses additional offshore manufacturing partners for capacity. It serves OEM customers across automotive aftermarket, heavy-duty vehicles, architectural/commercial/landscape lighting, industrial equipment, HVAC and data centers, medical and dental equipment, hydroponics, pool/spa, and public transport. The product portfolio is anchored by the patented MoistureBlock® anti-wicking waterproofing process, which seals voids within individual conductors down to the copper strands to prevent capillary action — a technical differentiator for harsh-environment applications.

The company's technology stack spans custom connector design, in-house cable and wire extrusion, plastic injection over-molding (including 20 AutoJector insert molders and LPMS-800H low-pressure molders), a complete tool shop with 3D printing for rapid prototyping, and UL Listed wire-harness production with proprietary continuity, pull-test, polarization, and visual-inspection testing on every unit. Branded product lines include the DT-MB Pro® panel-mount connector series, the LTPro Connecting System® (with an Eco variant), the SlimLine™ low-profile IP68 connector, and the Cobra Extension Harness. DSM&T holds 5 US utility patents and a broad portfolio of US and Chinese design patents, with additional applications pending. The company is UL Listed, ISO 9001:2015 certified at both US and Mexico sites, and additionally certified to CE, cUL, ETL, IEC, IEEE, TUV, RoHS, REACH, Conflict Minerals, and PPAP Levels 1 and 3.

DSM&T's business model is project-based contract manufacturing with custom quote-based pricing, MOQs that vary by part and customer, and standard 6–8 week lead times when components are readily available. Revenue streams include custom cable assemblies and wire harnesses, bulk cable sales, MoistureBlock® technology licensing/application, and R&D and troubleshooting services billed as part of the engagement. The go-to-market is engineering-driven and consultative: technical sales representatives provide troubleshooting support, on-site customer visits, and custom design assistance, supplemented by an inbound website quote form and industry events. The company is bootstrapped and founder-owned — Dan Wilson serves as CFO/Founder — with no institutional investors, parent company, or completed M&A identified in the source material.

Name

DSM&T

Legal name

DSM&T Company, Inc.

Website

https://dsmt.com

Company type

Private

Founded year

1982

Operating status

Operating

Headcount range

101–250 employees

Short description

DSM&T is a privately held, US-based contract manufacturer founded in 1982 that designs and produces custom IP68 connectors, over-molded switches, PCBAs, and wire harnesses, anchored by its patented MoistureBlock® anti-wicking technology, for OEM customers across automotive, lighting, industrial, HVAC, medical, and water-equipment markets.

Ownership category

akta.pro rank

Product category

Electrical Interconnect Manufacturing

NAICS

Electronic Connector Manufacturing (334417), Current-Carrying Wiring Device Manufacturing (335931), Communication and Energy Wire and Cable Manufacturing (33592)

SIC

Electronic Connectors (3678)

akta.pro primary industry

Ruggedized/Harsh-Environment Electronics Manufacturing (IP-rated, shock/vibration, wide-temp) (IMAGAGAF)

akta.pro secondary industries

Connectors & Interconnect Components (Industrial connectors, terminals, sockets, backplane) (IMAGAJAC), Wiring Harnesses & Pre-Fabricated Assemblies (IMADAMAN), Industrial Electronics Manufacturing Services (EMS) (IMAGAGAA)

Keywords

• Custom electrical connectors
• Wire harness manufacturing
• Cable assemblies
• Over-molding services
• IP68 waterproof connectors

Headquarters

HQ city

Fontana

HQ country

United States

HQ region

North America

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Contract Manufacturing - Custom Products: Contract manufacturing of custom cable assemblies, wire harnesses, overmolded products, and custom connectors. Engaged through discrete PO's, blanket orders, and consignment programs. Manufacturing solutions built for specific customer requirements.
2. Bulk Cable Sales: Sale of bulk cable to customers in addition to internal production needs. Common types such as SJT's and SPT's from two conductor to many conductors. Internal testing facility ensures quality.
3. MoistureBlock® Technology Licensing: Patented MoistureBlock® technology can be applied to custom-designed connectors, existing connectors, cable glands, and more - providing proprietary waterproofing solution.
4. R&D and Troubleshooting Services: Research and development assistance including water ingress prevention design, custom connector design, prototyping, tooling, and navigating agency approvals. Billed as service component of engagement.

Pricing tiers

Go-to-market motion3 records

Distribution channels4 records

Marketing channels5 records

Core offering

DSM&T designs and manufactures custom electrical interconnect products for OEM customers, including custom connectors, wire harnesses, cable assemblies, and plastic over-molded components. The company specializes in solving water intrusion, size-constraint, and harsh-environment challenges through proprietary MoistureBlock® anti-wicking technology and contract manufacturing services. Operations span facilities in the USA (Fontana, CA) and Mexico, with UL Listed wire harness production and ISO 9001:2015 certification.

Product overview

DSM&T is an electrical interconnect designing and manufacturing specialist offering a comprehensive portfolio of custom connectors, wire harnesses, cable assemblies, and over-molding services. The company's product ecosystem centers on its proprietary MoistureBlock® technology for moisture protection, supported by key connector product lines including the DT-MB Pro® series (panel mount connectors), LTPro Connecting System® (environmentally sealed connectors), LTPro® Eco (eco variant), and SlimLine Connecting System™ (low-profile connectors). Complementary services include cable and wire extrusion, custom over-molding, and R&D/troubleshooting assistance. The company operates manufacturing facilities in the USA and Mexico with ISO 9001:2015 certification, serving automotive, lighting, industrial, medical, and HVAC sectors since 1982.

Differentiator

Problem solved

Functional benefit

Brands

• MoistureBlock®: Proprietary anti-wicking waterproofing technology that seals conductor voids to prevent liquid migration through power cords and connectors.
• DT-MB Pro®
• LTPro Connecting System®
• SlimLine Connecting System™

Products and services

• Custom Connectors Custom-designed connector systems built to customer specifications for water intrusion issues, size constraints, or specialized applications. Hundreds of custom design projects completed across architectural lighting, medical equipment, hydroponics, automotive aftermarket, emergency vehicle upfitters, and heavy duty vehicle OEMs.
• Wire Harnesses & Cable Assemblies Custom wire harnesses and cable assemblies manufactured at UL Listed facilities with continuity testing, pull testing, polarization testing, and visual inspection. Serves automotive aftermarket, lighting fixture OEMs, industrial equipment, vehicle upfitters, HVAC, and pool/spa applications.
• Custom Over Molding Plastic injection over-molding services that encase connectors, splices, toggle switches, and PCBA's for protection against liquids, heat, and impact. Provides improved fit, ease of assembly, increased reliability, reduced production costs, and tamper-proofing.
• Cable & Wire Extrusion In-house cable and wire extrusion capabilities producing SJT's and SPT's from two conductor to many conductors, with internal testing facility to ensure quality standards. Bulk cable is also sold to customers in addition to internal production needs.
• R&D and Troubleshooting Assistance Research and development services along with technical troubleshooting for liquid intrusion, impact resistance, and high heat & pressure applications. Includes consulting, engineering and testing, 2D CAD drawings and 3D models, 3D prototyping, on-site tool shop tooling and over-mold samples, and quality control testing including ingress protection and dielectric testing.
• DT-MB Pro® Connectors Panel mount DT/AT series connectors featuring IP68 moisture protection and MoistureBlock® anti-wicking technology, with replaceable anodized aluminum housing, available in 2-way, 3-way, and 4-way configurations. 13AMP contact current rating, compatible with GXL, TXL, UL 1007 and UL 1015; 14-20 AWG.
• LTPro Connecting System® Environmentally sealed connector system providing dust-proof and water-tight connections for challenging weather conditions. Available for both in-line and panel-mount applications with configurations of 3POS, 4POS, 5POS, 6POS & 11POS. Features nylon locking clips, MoistureBlock® technology, silicone seals, solid contacts. Compatible with SJT, STOW, SEOW & AWM styles cable.
• LTPro® Eco Connecting System Eco-friendly version of the LTPro connecting system providing secure, protected, dust-proof and water-tight connections in challenging weather conditions. Available for both in-line and panel-mount applications.
• SlimLine Connecting System™ Low-profile power connector with slim body of only 0.25 inches height, allowing low profile applications without reducing current or voltage capabilities compared to standard NEMA 5-15 plugs. Features micro-seal technology achieving IP68 rating. Rated 10 AMP/125 VAC for SPT (18 AWG & 16 AWG) cable. Patent pending.
• MoistureBlock® Technology Proprietary patented waterproofing process that prevents water, oil and other fluids from migrating through power cords by sealing voids within individual conductors down to copper strands. Prevents capillary action and can be integrated into custom-designed connectors, applied to existing connectors, cable glands, and more.
• Cobra Extension Harness Purpose-built extension harness for auxiliary lighting featuring fully-molded, right-angle plug with zero exposed wires. IP-sealed system when paired with DT-MB Pro panel-mount. Available in 2/3/4-pin configurations supporting Deutsch DT/DTP & Amphenol AT/ATP connectors. Rated up to 25A. USA-made for harsh environments.

Quantifiable outcome

• Time and cost savings by outsourcing harness production - customers report significant savings by not maintaining internal harness manufacturing
• +2 more outcomes

Named customers15 records

Segments9 records

Ideal customer profiles6 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature8 records

Partnerships

Two partnerships are on record, tiered core and minor.

• DGS ElectriccoreStrategic or Co-development PartnerSecondary production facility in Mexico operated by DGS Electric. Both DSM&T Company and DGS Electric are ISO 9001:2015 certified. Provides additional manufacturing capacity of 45,000 ft².
• IAPMOSCB (International Association of Professional Management and Occupational Safety Certification Body)minorOthersISO 9001:2015 certification body that audits and certifies DSM&T's quality management systems. Provides independent verification of compliance with international quality standards.

Scale indicators7 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Amphenol: Global interconnect manufacturer whose AT series automotive connectors are explicitly cross-compatible with DSM&T's DT-MB Pro products. Directly comparable in harsh-environment automotive/industrial connector engineering and contract-manufacturing service.
• TE Connectivity: Owner of the Deutsch DT series that DSM&T's DT-MB Pro cross-compatibles with. Competes head-to-head in sealed automotive/industrial connectors, wire harnesses, and contract cable assemblies.
• Molex: Koch-owned global connector manufacturer with a deep harsh-environment and wire-to-board portfolio, and a substantial contract-manufacturing/cable-assembly business — directly comparable to DSM&T across connector, harness, and overmolded solutions.
• Phoenix Contact: Industrial connector specialist selling IP67/IP68 sealed circular and rectangular connectors into industrial automation, HVAC, and harsh-environment OEMs — overlapping with DSM&T's MoistureBlock-equipped product family.
• Bulgin (Infinite Electronics): Manufacturer of IP67/IP68 sealed power and data connectors used in harsh industrial, marine, and outdoor applications. Direct specialty overlap with DSM&T's environmentally sealed DT-MB Pro and LTPro connector lines.
• Hubbell: Industrial plugs, connectors, and wiring devices including marine/shore-power interfaces — overlapping with DSM&T's SlimLine low-profile power connectors and UL Listed wire-harness/wiring-device offering.
• Methode Electronics: Custom-engineered interconnect solutions supplier for industrial, automotive, and aerospace OEMs — directly comparable to DSM&T's custom connector, harness, and over-molded contract manufacturing model.
• CMD (Custom Molding & Design): Custom overmolded cable assemblies and connector over-molding services for medical, industrial, and harsh-environment customers — a direct niche competitor on DSM&T's custom over-molding service line.

Broad incumbents

• Leviton: Broad-line manufacturer of wiring devices, plugs, connectors, and industrial-grade electrical products. Adjacent competitor across residential/commercial receptacles and selected industrial connector SKUs that overlap with DSM&T's SlimLine and wire-harness product lines.
• Weidmuller: Industrial connectivity specialist with sealed connectors, wire-harness processing, and industrial-grade electronic packaging — competing with DSM&T in harsh-environment industrial OEM sockets.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

Compliance15 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles8 records

Subsidiaries1 record

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 DSM&T