Coudoint Sa
Coudoint Sa is a French specialty manufacturer founded in 1913, designing and producing power resistors, rheostats, precision potentiometers, and load banks for industrial, railway, aerospace, defense, and heavy-industry customers worldwide from its Les Essarts Le Roi factory.
- Company typePrivate
- Founded1913
- HeadquartersLes Essarts-le-roi, France
- Headcount1–10
- GTM typeB2B
- OfferingHardware or Manufacturing
What Coudoint Sa does
Coudoint Sa (legal entity COUDOINT SAS) is a French specialty manufacturer of power resistive components and load testing equipment, founded in 1913 and operating from a 1,500 square meter factory in Les Essarts Le Roi (Yvelines, near Paris) since 1924. The company designs, manufactures, and sells its products worldwide, serving industrial customers across multiple verticals including railway traction, aerospace, defense, heavy industry (steel, cement, printing), and education/research. Its customer base spans small businesses to major international companies requiring robust, reliable electrical resistance and load testing solutions.
The company's core technology spans three interconnected product families: (1) resistive components including wirewound resistors (RCA series, 0.1Ω to 440kΩ, up to 1325W), edgewound resistors (TOFIL/BC series, up to 3300W continuous and 1650A intermittent), and woven resistors (1Ω to 10kΩ+, low inductance, lightweight form factor); (2) variable resistance control devices including sliding rheostats (315W to 7000W), rotary rheostats (16 to 300W), precision wirewound potentiometers (linearity up to ±0.05%), and motorized potentiometers/rheostats for remote regulation; and (3) load testing systems including standard load banks/battery discharge testers (6 kW to 150 kW), LBAC generator-set load banks (100-1000 kW) with MODBUS RTU/TCP and Profibus integration, and custom aerospace/specialty load banks. Production is on-demand, with custom designs built to specification and replacement parts available for older models.
The business model is predominantly project-based, quote-driven sales of standard catalog items or custom-designed products via direct technical consultation (email RFQ process with formal proposals and order confirmations), supplemented by a 2023-launched e-commerce storefront (coudoint.biz) for configuring and purchasing standard TOFIL resistors. Revenue streams consist of one-time sales transactions across hardware units; no recurring service, subscription, or licensing model is present. The company is privately held with no disclosed funding rounds, no parent company, and operates with a very small headcount (1-10 employees), making it a highly specialized niche manufacturer with century-old brand equity but limited scale.
Coudoint Sa firmographics
Firmographics- Name
- Coudoint Sa
- Legal name
- COUDOINT SAS
- Website
- https://coudoint.com
- Company type
- Private
- Founded year
- 1913
- Operating status
- Operating
- Headcount range
- 1–10 employees
- Short description
- Coudoint Sa is a French specialty manufacturer founded in 1913, designing and producing power resistors, rheostats, precision potentiometers, and load banks for industrial, railway, aerospace, defense, and heavy-industry customers worldwide from its Les Essarts Le Roi factory.
- Ownership category
- akta.pro rank
Where Coudoint Sa is headquartered
LocationHeadquarters
- HQ city
- Les Essarts-le-roi
- HQ country
- France
- HQ region
- Europe
Offices1 record
Markets served
Coudoint Sa business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Personnel, Operations, Supply Chain, Marketing or Sales
Revenue model
- Standard Product Sales: Sale of catalog standard products including wirewound resistors, edgewound resistors, woven resistors, rheostats, potentiometers, and load banks.
- Custom Product Sales: Custom-designed products to meet specific customer needs based on specifications or requirement descriptions, using proven in-house solutions.
- Motorized Potentiometers and Rheostats: Custom-designed motorized modules for remote control applications and regulation functions, always custom design based on specific requirements.
- Battery Discharge Testers: Standard and custom battery discharge testers for testing batteries by discharging at specified modes such as fixed discharge current.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Other | Pay-as-you-go | Quote-based pricing for standard and custom products |
Go-to-market motion2 records
Distribution channels2 records
Marketing channels3 records
Coudoint Sa product offering
Product offeringCore offering
Coudoint SAS, founded in 1913 in Les Essarts Le Roi, France, designs and manufactures power resistors (wirewound, edgewound, and woven types), sliding and rotary rheostats, precision potentiometers in Size 15 and Size 18 form factors, motorized potentiometers and rheostats, and a comprehensive range of load banks (Standard Series, battery discharge testers DCLA/DXLA, LBAC generator test banks, aerospace-qualified units, and custom-engineered models) for industrial customers in railway, aerospace, defense, heavy industry, and education.
Product overview
Coudoint Sa is a manufacturer of power resistive components and load testing equipment, operating since 1913 from Les Essarts Le Roi, France. Its portfolio spans three interconnected product families: (1) resistive components — wirewound resistors (RCA series, 0.1 Ω to 440 kΩ, up to 1325 W), edgewound resistors (TOFIL/BC series, up to 3300 W continuous, 1650 A intermittent), and woven resistors (1 Ω to 10+ kΩ, low inductance); (2) variable resistance control — sliding rheostats (SN, STV, SQV series, 315 W to 7000 W), rotary rheostats (T series, 16 to 300 W), precision potentiometers (Size 15/18, linearity ±0.05% to ±1%), and motorized potentiometers/rheostats for remote control; and (3) load testing systems — standard load banks/battery discharge testers (6 kW to 150 kW), LBAC generator set load banks (100-1000 kW), and custom aerospace/special load banks. Products are offered as standard catalog items or custom-designed to specification, with on-demand production and worldwide shipping.
Differentiator
Problem solved
Functional benefit
Brands
- TOFIL: A series/product line of edgewound resistors sold under the TOFIL brand, also available for purchase directly via the company's online platform coudoint.biz.
- RCA
- LBAC
- BC
Quantifiable outcome
- Precision potentiometer linearity up to ±0.05%
- +3 more outcomes
Companies that use Coudoint Sa
Customer profileSegments6 records
Ideal customer profiles1 record
Coudoint Sa technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Integration4 records
Feature7 records
Coudoint Sa partnerships and signals
Strategic signalScale indicators3 records
Recent moves6 records
Expansion highlights5 records
Coudoint Sa competitors and assessment
Company assessmentDirect peers
- Mosebach Manufacturing Company: US-based maker of resistive load banks for generator, military, and shipboard testing — competes with Coudoint's aerospace/defence load bank portfolio in the high-reliability segment.
- Riedon Inc. Manufacturer of precision wirewound, foil, and power resistors with strong custom-design capability — directly comparable to Coudoint's niche resistor and potentiometer offering for industrial and test customers.
- Hilo-Test (Hilo GmbH): German specialist in load banks and resistive load testing systems — overlaps directly with Coudoint's standard and aerospace load-bank product lines and shares the European industrial customer base.
- Ohmite Manufacturing Company: US-based specialist manufacturer of wirewound, edgewound, and other power resistors plus rheostats and potentiometers — the closest direct competitor to Coudoint's core resistive-components catalogue.
- Avtron Power Solutions: Global manufacturer of load banks (resistive and reactive) for generator, UPS, and aerospace testing — competes head-to-head with Coudoint's LBAC generator-set and special load-bank lines.
- Danotherm Electric A/S: Danish producer of power resistors, braking resistors, and load banks for industrial, energy, and transport — directly comparable in product mix and high-power engineering focus.
Broad incumbents
- Vishay Intertechnology: Global Tier-1 passive-components giant offering a broad resistor portfolio including power resistors — competes with Coudoint on standard catalogue parts while serving much wider markets.
- Kanthal (Sandvik): Sandvik division producing resistance heating wire, ribbon, and elements — adjacent to Coudoint's edgewound/woven resistor technology and a credible substitute in industrial heating applications.
- ASCO Power Technologies: Diversified power quality and switching equipment vendor with a load-bank portfolio — broader incumbent competing against Coudoint in generator and mission-critical test markets.
- TT Electronics: UK-headquartered manufacturer of resistive products and power components serving industrial, aerospace, and defence — overlapping competitor for potentiometers and precision resistive components.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks6 records
Key highlights7 records
Customer concentration
Coudoint Sa social profiles
Digital presenceCoudoint Sa financial estimates
Financial estimateRevenue estimate
Valuation estimate
Coudoint Sa leadership team
Management profileNumber of profiles
Coudoint Sa funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Coudoint Sa 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 Coudoint Sa
What does Coudoint Sa do?
Coudoint SAS, founded in 1913 in Les Essarts Le Roi, France, designs and manufactures power resistors (wirewound, edgewound, and woven types), sliding and rotary rheostats, precision potentiometers in Size 15 and Size 18 form factors, motorized potentiometers and rheostats, and a comprehensive range of load banks (Standard Series, battery discharge testers DCLA/DXLA, LBAC generator test banks, aerospace-qualified units, and custom-engineered models) for industrial customers in railway, aerospace, defense, heavy industry, and education.
Is Coudoint Sa a public or private company?
Coudoint Sa is a private company. It is currently operating.
When was Coudoint Sa founded?
Coudoint Sa was founded in 1913. It employs 1 to 10 people.
Where is Coudoint Sa based?
Coudoint Sa is headquartered in Les Essarts-le-roi, France, in the Europe region.
How does Coudoint Sa make money?
Four revenue lines are on record. Standard Product Sales are the primary driver. The others are custom Product Sales, motorized Potentiometers and Rheostats and battery Discharge Testers.
Who are Coudoint Sa's main competitors?
Direct peers on record are Mosebach Manufacturing Company, Riedon Inc., Hilo-Test (Hilo GmbH), Ohmite Manufacturing Company, Avtron Power Solutions and Danotherm Electric A/S. Broad incumbents are Vishay Intertechnology, Kanthal (Sandvik), ASCO Power Technologies and TT Electronics.
Does Coudoint Sa have an API?
No public API is recorded for Coudoint Sa.