CROHM
Crohm Resistors LLC is a Cincinnati-based specialty manufacturer that designs and produces power resistors and grounding systems for industrial VFD and power-system applications. It sells custom-engineered products and aftermarket replacements compatible with eight major drive manufacturers via direct quote-based sales.
- Company typePrivate
- Founded-
- HeadquartersCincinnati, United States
- Headcount11–50
- GTM typeB2B
- OfferingHardware or Manufacturing
What CROHM does
Crohm Resistors LLC is a privately held specialty industrial manufacturer headquartered at 1640 Lionel Ave, Cincinnati, Ohio, that designs and produces power resistors and grounding systems for AC motor drive and power-system applications. The company's product portfolio spans eleven categories including braking resistors, Series CW wirewound resistors, Series CE edgewound resistors, Series CC case resistors, Series CG grid/CH high-current resistors, smoothwound resistors, harmonic filters, neutral grounding resistors, high resistance grounding systems, and oil-and-gas braking assemblies. Core technology centers on stainless-steel-alloy resistance elements wound onto cordierite ceramic or steatite porcelain cores with direct air-contact cooling, hermetically sealed aluminum enclosures for case resistors, and engineered grounding cabinets with integrated fault detection and pulsing-current fault-location features. The company holds ISO 9001:2015 certification and designs its neutral grounding resistors to IEEE Standard 32.
Crohm operates a quote-based, sales-led go-to-market with no public pricing and no disclosed reseller or distributor network. Customers submit specifications — including resistance value, system voltage, fault current, duty cycle, enclosure type (NEMA 1/3R/4/4X), and drive manufacturer — through online quote request forms, and the company delivers custom-engineered assemblies with factory interconnections for indoor and outdoor environments. A substantial portion of the catalog consists of drop-in replacement braking resistors compatible with ABB, Allen Bradley/Rockwell, GE Fuji, Mitsubishi, Omron, Siemens, Toshiba, Control Techniques, and Yaskawa variable frequency drives, giving the company an aftermarket positioning alongside its proprietary Series CW/CE/CC/CG product lines. End markets span variable-frequency-drive users, power-system operators, oil and gas, mining, cranes, transit, and elevator controls.
The company is structured as an Ohio LLC, is privately owned with no disclosed external investors, has a headcount in the 11–50 range, and does not disclose revenue. There is no parent company, no subsidiaries, and no recorded M&A, funding, leadership-change, or restructuring events in the available data. Distribution is single-country/domestic United States, and the company maintains no active social media or content marketing channels beyond its corporate website.
CROHM firmographics
Firmographics- Name
- CROHM
- Legal name
- Crohm Resistors LLC
- Website
- https://crohm.com
- Company type
- Private
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- Crohm Resistors LLC is a Cincinnati-based specialty manufacturer that designs and produces power resistors and grounding systems for industrial VFD and power-system applications. It sells custom-engineered products and aftermarket replacements compatible with eight major drive manufacturers via direct quote-based sales.
- Ownership category
- akta.pro rank
CROHM industry classification
Industry- Product category
- Industrial Power Resistors
- NAICS
- Capacitor, Resistor, Coil, Transformer, and Other Inductor Manufacturing (334416)
- SIC
- Electronic Coils, Transformers & Other Inductors (3677)
- akta.pro primary industry
- Resistors (Fixed/Variable/Network) (HDAHANAA)
- akta.pro secondary industry
- Passive Components (Resistors, Capacitors, Inductors, Ferrites) (IMAGAJAA)
Keywords
Where CROHM is headquartered
LocationHeadquarters
- HQ city
- Cincinnati
- HQ country
- United States
- HQ region
- North America
Offices1 record
Markets served
CROHM 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
- Resistor Product Sales: Sale of electrical resistors including braking resistors, wirewound, edgewound, case, grid/ribbon, and neutral grounding resistors for industrial power control applications
- Custom Resistor Systems: Custom-engineered resistor assemblies with factory interconnections and terminations, including protective enclosures for indoor and outdoor applications
- Replacement Resistor Parts: Replacement braking resistors compatible with ABB, Fuji, GE, Mitsubishi, Omron, Rockwell, Siemens, and Yaskawa variable frequency drives
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Unit Pricing | Pay-as-you-go | Custom quotation based on specifications |
Go-to-market motion1 record
Distribution channels1 record
Marketing channels2 records
CROHM product offering
Product offeringCore offering
Crohm Resistors LLC designs and manufactures industrial power resistors and grounding systems for electrical and motor control applications. The product portfolio includes proprietary resistor series (wirewound, edgewound, case, grid/ribbon), complete braking resistor systems for AC variable frequency drives (VFDs), neutral grounding resistors compliant with IEEE-32, and high resistance grounding systems. Crohm also supplies drive-specific replacement braking resistors compatible with ABB, Allen Bradley, GE, Mitsubishi, Omron, Siemens, Toshiba, and Yaskawa variable frequency drives.
Product overview
Crohm Resistors is a specialized manufacturer of industrial power resistors for electrical systems, not a software platform. Their product portfolio centers on two main categories: (1) proprietary resistor series including Series CW Wirewound, Series CE Edgewound, Series CC Case, and Series CG Grid/CH High-Current resistors; and (2) complete system solutions including Braking Resistors for VFDs, Neutral Grounding Resistors, and High Resistance Grounding Systems. They also offer a comprehensive line of branded replacement braking resistors compatible with ABB, Fuji, GE, Mitsubishi, Omron, Rockwell (Allen Bradley), Siemens, Toshiba, and Yaskawa variable frequency drives. All products are ISO 9001 certified.
Differentiator
Problem solved
Functional benefit
Products and services
- Braking Resistors
- Series CW Wirewound Resistors
- Series CE Edgewound Resistors
- Series CC Case Resistors
- Series CG Grid and CH High-Current Resistors
- Neutral Grounding Resistors
- High Resistance Grounding Systems
- Braking Resistor Replacements (Multi-Drive)
- Harmonic Filters
- Smoothwound Resistors
- Oil and Gas Braking Resistors
Quantifiable outcome
- Arc flash hazard reduction of up to 98 percent
- +1 more outcomes
Companies that use CROHM
Customer profileSegments5 records
Ideal customer profiles5 records
CROHM technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Integration9 records
Feature6 records
CROHM partnerships and signals
Strategic signalScale indicators3 records
Recent moves6 records
Expansion highlights4 records
CROHM competitors and assessment
Company assessmentBroad incumbents
- Schneider Electric: Global electrical equipment and industrial automation company offering drives, motor control, and power distribution products — broader portfolio but competes in adjacent motor control and grounding system categories.
- ABB: Global drives and electrification manufacturer that produces its own branded braking resistors and VFD accessories — both a customer (Crohm makes compatible replacement parts) and competitor in the broader drive ecosystem.
- Siemens: Major drive and electrical equipment manufacturer offering its own branded braking resistors (PM240, V20 series) — Crohm's replacement parts target Siemens drive platforms, making it both a reference customer and adjacent incumbent.
- Vishay Intertechnology: Large diversified electronic component manufacturer with a significant resistors portfolio (Dale, Milwaukee resistor brands) — broad incumbent competing in overlapping resistor categories, though focused more broadly across passives.
- Kanthal (Sandvik): Part of Sandvik, Kanthal produces resistance heating wire and ribbon plus industrial resistors for furnace, process heating, and power applications — broader portfolio but overlapping resistance products for industrial use.
Direct peers
- Stackpole Electronics: Manufacturer of resistor products including through-hole, wirewound, and power resistors serving industrial and automotive markets — directly comparable as a resistor specialist.
- Bender Group: Specialist in electrical safety including ground fault detection and high-resistance grounding systems — directly comparable product overlap with Crohm's HRG systems targeting arc flash reduction.
- Danotherm Electric: Danish-based manufacturer of power resistors and braking resistors for variable frequency drives and industrial applications — directly comparable product line and end-market overlap with Crohm.
- Ohmite Manufacturing Company: Established US manufacturer of resistive products including wirewound, edgewound, and grid resistors for industrial power and motor control applications — directly comparable core product portfolio to Crohm.
- Post Glover Resistors: Specialty manufacturer of power resistors and neutral grounding resistors, including high-resistance grounding systems for industrial and utility customers — directly comparable in HRG and NGR product lines.
Market position
Weaknesses5 records
Competitive moat4 records
Key risks6 records
Key highlights6 records
Customer concentration
CROHM social profiles
Digital presenceCROHM compliance and trust
Trust signalCompliance2 records
CROHM financial estimates
Financial estimateRevenue estimate
Valuation estimate
CROHM leadership team
Management profileNumber of profiles
CROHM funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
CROHM 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 CROHM
What does CROHM do?
Crohm Resistors LLC designs and manufactures industrial power resistors and grounding systems for electrical and motor control applications. The product portfolio includes proprietary resistor series (wirewound, edgewound, case, grid/ribbon), complete braking resistor systems for AC variable frequency drives (VFDs), neutral grounding resistors compliant with IEEE-32, and high resistance grounding systems. Crohm also supplies drive-specific replacement braking resistors compatible with ABB, Allen Bradley, GE, Mitsubishi, Omron, Siemens, Toshiba, and Yaskawa variable frequency drives.
Is CROHM a public or private company?
CROHM is a private company. It is classified as unknown and is currently operating.
When was CROHM founded?
CROHM was founded in -1. It employs 11 to 50 people.
Where is CROHM based?
CROHM is headquartered in Cincinnati, United States, in the North America region.
How does CROHM make money?
Three revenue lines are on record. Resistor Product Sales are the primary driver. The others are custom Resistor Systems and replacement Resistor Parts.
Who are CROHM's main competitors?
Broad incumbents on record are Schneider Electric, ABB, Siemens, Vishay Intertechnology and Kanthal (Sandvik). Direct peers are Stackpole Electronics, Bender Group, Danotherm Electric, Ohmite Manufacturing Company and Post Glover Resistors.
Does CROHM have an API?
No public API is recorded for CROHM.
What industry is CROHM in?
CROHM's product category is Industrial Power Resistors. Its primary akta.pro industry code is HDAHANAA, Resistors (Fixed/Variable/Network), with a secondary code of IMAGAJAA, Passive Components (Resistors, Capacitors, Inductors, Ferrites). Its NAICS code is 334416 and its SIC code is 3677.