RoMan Manufacturing
RoMan Manufacturing is a family-owned, Grand Rapids-based manufacturer of water-cooled transformers and power conversion systems for industrial resistance welding, glass, furnace/heat-treat, semiconductor, and railway applications, serving 3,000+ customers across 40+ countries.
- Company typePrivate
- Founded1980
- HeadquartersGrand Rapids, United States
- Headcount101–250
- GTM typeB2B
- OfferingHardware or Manufacturing
What RoMan Manufacturing does
RoMan Manufacturing is a privately held, family-owned industrial power conversion company founded in 1980 and headquartered in Grand Rapids, Michigan. The company designs and manufactures water-cooled, high-current, low-voltage transformers and power supply systems for industrial manufacturers in resistance welding (notably automotive body-in-white), glass melting and forming, furnace and heat-treat operations, semiconductor crystal growth, railway welding, and broader industrial OEM applications. Its technology portfolio centers on MFDC (Medium Frequency Direct Current) inverter transformers in sizes from 2 through 18 with KVA ratings from 90 to 675, IGBT and SCR digital power controllers, the patented Reversing DC RDC-8030, the Enhanced Furnace Power System (ERT) with predictive maintenance diagnostics, and fully custom DC power system panels up to 1,200+ kVA for semiconductor fabs. The wholly owned Macro Magnetics division extends the platform into engineered electrical products for data centers, drives, elevators, machine tools, and ground power.
The company generates revenue primarily through direct, quote-based hardware sales with multi-year contracts, supplemented by transformer repair services, RMA processing, technical training via RoMan University, and an apprenticeship program. Sales are executed through an enterprise field-sales organization with account managers dedicated to specific regions (North America, Asia Pacific) and verticals (automotive, glass, semiconductor, railway), supplemented by an online store for standard products and accessories and heavy participation in industry trade shows such as FABTECH, EuroBLECH, Glasstec, and AREMA. The customer base spans 3,000+ organizations across the United States, Canada, Mexico, and 40+ other countries.
In 2023, RoMan underwent a significant governance transition when Nelson Sanchez, the first non-family member to lead the company, was named President in January and CEO in June, while founder-family member Bob Roth moved to Executive Chairman. The same year the company broke ground on a new state-of-the-art manufacturing facility, refreshed its executive bench, and maintained ISO 9001:2015 certification, signaling investment in capacity, leadership depth, and operational quality.
RoMan Manufacturing firmographics
Firmographics- Name
- RoMan Manufacturing
- Legal name
- RoMan Manufacturing, Inc.
- Website
- https://romanmfg.com
- Company type
- Private
- Founded year
- 1980
- Operating status
- Operating
- Headcount range
- 101–250 employees
- Short description
- RoMan Manufacturing is a family-owned, Grand Rapids-based manufacturer of water-cooled transformers and power conversion systems for industrial resistance welding, glass, furnace/heat-treat, semiconductor, and railway applications, serving 3,000+ customers across 40+ countries.
- Ownership category
- akta.pro rank
RoMan Manufacturing industry classification
Industry- Product category
- Industrial Power Conversion Equipment
- NAICS
- Power, Distribution, and Specialty Transformer Manufacturing (335311), Switchgear and Switchboard Apparatus Manufacturing (335313), Relay and Industrial Control Manufacturing (335314)
- SIC
- Power, Distribution & Specialty Transformers (3612), Switchgear & Switchboard Apparatus (3613), Electrical Industrial Apparatus (3620)
- akta.pro primary industry
- Transformers (Power, Distribution, Instrument, Specialty) (IMAGAAAA)
- akta.pro secondary industries
- AC-DC Power Supplies (Industrial PSUs, DIN-rail, enclosed/open-frame) (IMAGADAA), Industrial Control Cabinets & Power Distribution (Panels, Switchgear for Automation) (IMAHAHAK)
Keywords
Where RoMan Manufacturing is headquartered
LocationHeadquarters
- HQ city
- Grand Rapids
- HQ country
- United States
- HQ region
- North America
Offices1 record
Markets served
RoMan Manufacturing business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Supply Chain, Personnel, Operations, Technology or R&D, Marketing or Sales, Infrastructure
Revenue model
- Water-Cooled Transformers: Custom and standard water-cooled transformers for resistance welding, glass, furnace, and semiconductor applications. Products include MFDC transformers, AC transformers, and specialty configurations. Revenue generated through direct product sales to industrial manufacturers.
- Power Control Systems: IGBT controllers, SCR power controllers, and power system panels. Integrated power control solutions that manage and optimize industrial heating and welding processes.
- Furnace Power Systems: Enhanced Furnace Power System (ERT) and related components for heat treating applications. Includes upgrade and replacement solutions for legacy VRT systems.
- Service & Support: Transformer repair services, RMA processing, and technical support. Also includes training through RoMan University and apprenticeship programs.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Other | Multi-year contract | Custom/Standard Transformer Products |
Go-to-market motion1 record
Distribution channels2 records
Marketing channels6 records
RoMan Manufacturing product offering
Product offeringCore offering
RoMan Manufacturing designs and manufactures water-cooled, high-current, low-voltage transformers and power supply systems for industrial applications. Core offerings include MFDC (Medium Frequency Direct Current) transformers, AC transformers, IGBT and SCR power controllers, Enhanced Furnace Power Systems (ERT), and custom power system panels serving resistance welding, glass manufacturing, heat treating, semiconductor, and railway customers. The company also provides transformer repair services, technical support, and training through RoMan University.
Product overview
RoMan Manufacturing is a leading manufacturer of water-cooled, high-current, low-voltage power conversion solutions serving the resistance welding, glass, furnace, and semiconductor industries. The company's product portfolio centers on its core transformer and power supply offerings, which include MFDC (Medium Frequency Direct Current) transformers in various sizes (from Size 2 through Size 18) for resistance welding applications, glass-specific transformers for melting, boosting, and forming operations, and furnace power systems including the Enhanced Furnace Power System (ERT) with integrated SCR controls. Supporting products include IGBT digital controls, power system panels for semiconductor crystal growth, and the company's Macro Magnetics division providing engineered electrical products for OEMs. The portfolio spans products ranging from compact transformers (e.g., 90 KVA Size 2 units at 30 lbs) to large multi-stack units (675 KVA Size 18 at 410 lbs), all designed for industrial environments requiring precise power delivery, cooling integration, and compatibility with various control systems (SCR, IGBT, Saturable Reactors, PLC/SCADA).
Differentiator
Problem solved
Functional benefit
Brands
- Macro Magnetics: A U.S.-based manufacturer of engineered electrical products, delivering tailored power solutions for commercial OEMs and industrial end users. Known for deep engineering expertise serving industries such as Data Centers, Drives, Elevators, Machine Tools, Ground Power, and Glass Manufacturing.
Products and services
- MFDC Transformers (Multiple Sizes) Water-cooled Medium Frequency Direct Current (MFDC) transformers and power supplies for resistance welding. Available in sizes 2, 2.5, 3, 3.5, 4, 6, 8, 12, and 18, with KVA ratings from 90 to 675 at 50% duty cycle. Used for robotic and fixture spot welding, projection welding, and heavy gauge aluminum/steel applications by automotive and industrial manufacturers.
- S Frame AC Transgun Type Transformer Water-cooled AC transformer designed for robotic and spot welding applications. Integrates with any brand of controls, weld guns, or robotic systems, enabling flexible deployment on automotive and industrial welding lines.
- Reversing DC RDC-8030 Patented water-cooled Reversing MFDC power supply (Patent D791,847) for welding aluminum and special steel applications where polarity considerations are necessary. Provides up to 32 kA current capacity, longer electrode life, nugget growth location, longer tip cutter life, and faster cycle time.
- Glass Transformers (Melting, Boosting, Forming) Water-cooled transformers designed for optimizing melting, boosting, and forming of glass including Fiberglass, Container, Float, Flat, LCD, Mobile Phone, Fiber Optic and Specialty glass. Smaller in size and closely coupled to heat source to improve energy efficiency while reducing energy, installation, operation and maintenance costs. Includes forming transformers for balanced electrical delivery, furnace melting transformers, and boosting transformers to maintain optimum temperature of flowing glass.
- Enhanced Furnace Power System (ERT) Modern furnace power system featuring integrated SCR power control. Offers compact design (half the weight of legacy systems), accessible maintenance, built-in diagnostics, universal mounting (vertical, horizontal, or inverted), and predictive maintenance capabilities. Replaces outdated VRT systems with no cables required and lead times of 10 weeks or fewer. Includes the SCR Power Controller as drop-in replacement component, plus Single Phase, Scott T, and Three-Phase transformers for furnace and semiconductor operations.
- Power System Panels Complete DC power panel systems designed for high-temperature crystal growth processes from pilot lines to full fab-scale semiconductor operations. Features integrated SCR, IGBT, or ERT controls with capacities from 50kVA to 1200kVA+. Custom-configured for load requirements, cooling systems, and SCADA/PLC integration architecture.
- IGBT Digital Power Controller Technologically advanced digital semiconductor IGBT controller offering a fully integrated power control solution. Output allows lower secondary voltage and reduced primary power with programmable supply voltage, predictive maintenance information, robust long-life controls, and PLC-compatible HMI touch screen for easy setup and operation.
- Macro Magnetics (Engineered Electrical Products Division) Wholly-owned division of RoMan Manufacturing providing engineered electrical products and tailored power solutions for commercial OEMs and industrial end users. Strong presence in Data Centers, Drives, Elevators, Machine Tools, Ground Power, and Glass Manufacturing industries. Delivers deep engineering expertise and hands-on collaboration during application, design, and prototyping phases.
- Transformer Repair Services Repair services, RMA processing, and technical support for RoMan transformers and power supply systems. Customers request an RMA number through the website form to initiate repair of existing units, including legacy and competitor equipment serviced through RoMan's Repair Champion and Customer Success team.
Quantifiable outcome
- Lead time of 10 weeks or fewer compared to up to 6 months for legacy systems
- +2 more outcomes
Companies that use RoMan Manufacturing
Customer profileNamed customers2 records
Segments6 records
Ideal customer profiles6 records
RoMan Manufacturing technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
AI capability2 records
Feature5 records
RoMan Manufacturing partnerships and signals
Strategic signalPartnerships
One partnership is on record.
- Macro MagneticscoreMacro Magnetics is a U.S.-based manufacturer of engineered electrical products and a division of RoMan Manufacturing. It delivers tailored power solutions for commercial OEMs and industrial end users in Data Centers, Drives, Elevators, Machine Tools, Ground Power, and Glass Manufacturing. Macro is known for deep engineering expertise and hands-on collaboration during application, design, and prototyping phases.
Scale indicators4 records
Recent moves8 records
Expansion highlights6 records
RoMan Manufacturing competitors and assessment
Company assessmentDirect peers
- Taylor-Winfield Technologies: Direct competitor in resistance welding transformers, welding guns, and automated welding systems serving automotive and industrial OEMs. Most comparable peer in the water-cooled transformer niche that RoMan occupies.
- Centerline (Windsor) Limited: Canadian manufacturer of resistance welding equipment and transformers serving automotive, white goods, and industrial manufacturers. Direct competitor in the same resistance welding transformer category.
- WTC Welding Technology Corp: Manufacturer of resistance welding transformers, weld guns, and automated welding cells for automotive and industrial markets. Closely comparable in product offering and target customer base.
- T. J. Snow: Resistance welding equipment manufacturer and integrator serving automotive and industrial manufacturers with transformers, controls, and weld guns. Directly comparable product line and customer overlap.
- ARO Welding Technologies: Manufacturer of resistance welding equipment and transformers, particularly strong in automotive body-in-white applications and MFDC technology — a close functional overlap with RoMan's MFDC portfolio.
Broad incumbents
- Lincoln Electric: Global leader in welding products and systems. While primarily an arc welding company, Lincoln Electric's resistance welding division and broad industrial customer base create competitive overlap. RoMan's Bob Roth served as AWS President.
- ESAB Corporation: Global welding and cutting equipment manufacturer with a broad product portfolio spanning arc welding, automation, and resistance welding. Overlaps with RoMan in automotive and industrial welding markets at a much larger scale.
- Inductotherm Group: Global manufacturer of induction melting and heating equipment serving metals, forging, and heat-treat markets. Adjacent to RoMan's furnace power systems business in industrial heating applications.
- Advanced Energy Industries: Global supplier of precision power conversion products for semiconductor, industrial, and medical applications. Comparable in semiconductor crystal growth power panels and industrial DC power supplies.
Regional players
- Hennlich (Schottel, Power Electronics division): Austrian industrial supplier of power electronics, transformers, and heating solutions. Comparable in glass melting transformers and industrial power conversion serving European manufacturers.
Market position
Strengths5 records
Weaknesses4 records
Competitive moat4 records
Key risks5 records
Key highlights7 records
Customer concentration
RoMan Manufacturing social profiles
Digital presenceRoMan Manufacturing compliance and trust
Trust signalCompliance1 record
RoMan Manufacturing financial estimates
Financial estimateRevenue estimate
Valuation estimate
RoMan Manufacturing leadership team
Management profileNumber of profiles
Profiles10 records
RoMan Manufacturing subsidiaries and ownership
Company hierarchySubsidiaries1 record
RoMan Manufacturing funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
RoMan Manufacturing 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 RoMan Manufacturing
What does RoMan Manufacturing do?
RoMan Manufacturing designs and manufactures water-cooled, high-current, low-voltage transformers and power supply systems for industrial applications. Core offerings include MFDC (Medium Frequency Direct Current) transformers, AC transformers, IGBT and SCR power controllers, Enhanced Furnace Power Systems (ERT), and custom power system panels serving resistance welding, glass manufacturing, heat treating, semiconductor, and railway customers. The company also provides transformer repair services, technical support, and training through RoMan University.
Is RoMan Manufacturing a public or private company?
RoMan Manufacturing is a private company. It is classified as family owned and is currently operating.
When was RoMan Manufacturing founded?
RoMan Manufacturing was founded in 1980. It employs 101 to 250 people.
Where is RoMan Manufacturing based?
RoMan Manufacturing is headquartered in Grand Rapids, United States, in the North America region.
How does RoMan Manufacturing make money?
Four revenue lines are on record. Water-Cooled Transformers are the primary driver. The others are power Control Systems, furnace Power Systems and service & Support.
Who are RoMan Manufacturing's main competitors?
Direct peers on record are Taylor-Winfield Technologies, Centerline (Windsor) Limited, WTC Welding Technology Corp, T. J. Snow and ARO Welding Technologies. Broad incumbents are Lincoln Electric, ESAB Corporation, Inductotherm Group and Advanced Energy Industries. Hennlich (Schottel, Power Electronics division) is listed as a regional player.
Does RoMan Manufacturing have an API?
No public API is recorded for RoMan Manufacturing.
What industry is RoMan Manufacturing in?
RoMan Manufacturing's product category is Industrial Power Conversion Equipment. Its primary akta.pro industry code is IMAGAAAA, Transformers (Power, Distribution, Instrument, Specialty), with a secondary code of IMAGADAA, AC-DC Power Supplies (Industrial PSUs, DIN-rail, enclosed/open-frame). Its NAICS code is 335311 and its SIC code is 3612.