Zefin

Name

Zefin

Legal name

ZEFIN s.r.o.

Website

https://zefin.cz

Company type

Private

Founded year

2000

Operating status

Operating

Headcount range

1–10 employees

Ownership category

akta.pro rank

Product category

HVAC wholesale distribution

NAICS

Warm Air Heating and Air-Conditioning Equipment and Supplies Merchant Wholesalers (42373), Refrigeration Equipment and Supplies Merchant Wholesalers (423740)

SIC

Wholesale-Hardware & Plumbing & Heating Equipment & Supplies (5070)

akta.pro primary industry

HVAC, Water Heaters & Indoor Air Quality Distribution (CRAOAFAJ)

akta.pro secondary industry

Compressors, Refrigeration Components & Condensing Units (IMADANAG)

Keywords

• HVAC equipment wholesale
• Heating regulation components
• Measuring instruments distribution
• Thermostat wholesale supply
• Heat pump distribution

Headquarters

HQ city

Sezimovo Usti

HQ country

Czechia

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Supply Chain, Operations, Personnel, Infrastructure, Marketing or Sales

Revenue model

1. Product Sales (B2B Wholesale): Revenue generated from wholesale distribution of measuring, regulation and heating technology products. The company sells products from multiple manufacturers including SIEMENS, BELIMO, DANFOSS, HONEYWELL, and others. Products are sold to installers, heating technicians, and businesses in the HVAC industry.

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels3 records

Core offering

Zefin is a professional B2B wholesale distributor of measuring, regulation, and heating technology equipment, reselling products from major manufacturers (SIEMENS, BELIMO, DANFOSS, HONEYWELL, HOTJET, ESBE, ELEKTROBOCK, COMET SYSTEM, TESTO, JABLOTRON and others) to HVAC installers, heating technicians, and trade companies in the Czech Republic and Slovakia. The offering includes thermostats, equithermal regulators, heat pumps, actuators, control valves, gas detectors, CO2 and temperature sensors, level sensors, and backup power supplies, with warranty and post-warranty service and same-day pickup across two domestic warehouses.

Product overview

Zefin is a specialized wholesale distributor of measuring, regulation, and heating technology equipment based in the Czech Republic with 24 years of market experience. The company offers a comprehensive portfolio of heating regulation products including thermostats, heating regulators, heat pumps, actuators, control valves, CO2 and gas detectors, level sensors, and backup power supplies. Their product range includes both SIEMENS-based systems (RVS controllers, thermostatic valves) and branded products from manufacturers such as HOTJET heat pumps, BELIMO actuators, DANFOSS solenoid valves, HONEYWELL thermostats, ELEKTROBOCK heating controls, ESBE mixing valves, COMET SYSTEM sensors, TESTO measuring equipment, and JABLOTRON GSM controllers. The company operates sales warehouses in Sezimovo Ústí and Plzeň, providing warranty and post-warranty service for their entire product range.

Differentiator

Problem solved

Functional benefit

Products and services

• Thermostats Room temperature control devices including programmable, wireless, and smart thermostats used by HVAC installers and heating technicians in residential and commercial installations.
• Equithermal regulators Regulators that adjust heating water temperature based on outdoor temperature for optimal energy efficiency in boiler rooms, heat pumps, and heating circuit management.
• Control valves Control valves for regulating flow in heating and cooling systems, including zone valves, mixing valves, and thermostatic valves.
• Actuators (Servopohony) Actuators for operating valves and dampers in HVAC systems, from BELIMO and other manufacturers.
• Level sensors Level sensors for measuring liquid levels in tanks and containers, used in heating and industrial applications.
• CO2 detectors and sensors CO2 detectors and sensors for air quality monitoring in indoor spaces, including NL-ECO-CO2 and T5540 variants.
• Gas detectors (JTO) Gas detectors covering explosive gases (methane, propane), toxic gases, combined detectors, and portable detectors from Czech manufacturer JTO.
• Backup power supplies for circulation pumps Backup power supplies for circulation pumps to ensure continuous operation during power outages.
• Heat pumps (Tepelná čerpadla) Heat pumps including air-to-water and ground-to-water systems for residential and commercial heating, distributed from Czech manufacturer HOTJET.
• FRECON frequency converters Frequency converters for controlling speed of 3-phase asynchronous motors, with interference suppression filters, targeted at industrial automation buyers in Czech Republic and Slovakia.
• QAA 74 room device for RVS controller Wired room device with backlighting and integrated temperature sensor designed for use with SIEMENS RVS equithermal controller, providing a full replacement for the controller's operating unit with restricted-access menu option.
• SIEMENS thermostatic valves and heads SIEMENS-branded thermostatic valves and heads for radiator temperature control in residential and commercial heating systems.
• SIEMENS RVS controllers SIEMENS RVS controllers for boiler rooms, heat pumps, solar panels, and heating circuit management.
• SIEMENS SYNCO LIVING system SIEMENS SYNCO LIVING system for independent heating and ventilation control in individual rooms with wireless communication.
• BELIMO actuators and control valves BELIMO actuators and control valves for HVAC applications, including dampers and valves.
• DANFOSS solenoid valves DANFOSS solenoid valves for heating applications, including electromagnetic control valves.
• HONEYWELL thermostats HONEYWELL room thermostats, wireless thermostats, and gas detectors for residential heating control.
• ELEKTROBOCK heating regulation ELEKTROBOCK heating regulation products including programmable thermostats and wireless heating controls.
• ESBE mixing valves ESBE mixing valves, servomotors, and thermostatic mixing valves for heating system temperature mixing.
• COMET SYSTEM sensors Temperature, humidity, CO2, and pressure sensors with Ethernet, 4-20mA, 0-10V, and RS485 interfaces, plus data loggers and monitoring systems.
• TESTO measuring equipment TESTO measuring equipment including smart probes, WIFI dataloggers, differential pressure gauges, flue gas analyzers, and gas detectors.
• AQUART circulation pumps AQUART circulation pumps for hot and cold water circulation in heating and cooling systems, with 3-year warranty.
• GRUNDFOS circulation pumps GRUNDFOS energy-efficient circulation pumps for hot and cold water circulation in heating and cooling systems.
• SAFE HOME detectors SAFE HOME fire and smoke detectors and CO detectors for residential safety.
• JABLOTRON GSM controllers JABLOTRON GSM controllers for remote heating system control via mobile phone.
• THERMOKON sensors THERMOKON differential pressure sensors, CO2 sensors, and pressure sensors with 4-20mA and 0-10V outputs.
• Zone valves Zone valves for controlling individual heating zones with 2-way and 3-way configurations.

Segments2 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Partnerships

Seven partnerships are on record, tiered core.

• SIEMENScoreTechnology or IntegrationZefin distributes SIEMENS products including thermoregulation equipment, RVS equithermal regulators, space thermostats, and control valves. SIEMENS products represent a significant portion of their product portfolio.
• BELIMOcoreTechnology or IntegrationDistributor of BELIMO servomotors and control valves. BELIMO products are featured prominently in Zefin's product catalog.
• DANFOSScoreTechnology or IntegrationZefin distributes DANFOSS solenoid valves, control valves, and related heating technology components.
• HONEYWELLcoreTechnology or IntegrationDistributor of HONEYWELL products including room thermostats, wireless thermostats, and gas detectors. Featured products include EVOHOME wireless zone regulators.
• HOTJETcoreTechnology or IntegrationCzech manufacturer of heat pumps (air-water and ground-water systems) with SIEMENS RVS equithermal regulation. Zefin distributes HOTJET heat pumps with power range 10-84 kW (air-water) and 7-32 kW (ground-water). Components from Copeland, SWEP, and DANFOSS are used.
• ESBEcoreTechnology or IntegrationDistributor of ESBE mixing valves, servomotors, and thermostatic mixing valves for heating applications.
• ELEKTROBOCKcoreTechnology or IntegrationCzech manufacturer of thermostats, solar regulators, and wireless systems. Zefin distributes ELEKTROBOCK products including BPT32 wireless thermostat with GSM module support.

Scale indicators2 records

Recent moves5 records

Expansion highlights4 records

Direct peers

• IMI plc: Global manufacturer of hydronic control valves, actuators, and pressure-independent control solutions for HVAC and building services. Directly comparable to Zefin's core product mix of regulating valves, servomotors, and equithermal controls sold to installer channels.
• Watts Water Technologies: US-listed manufacturer of plumbing, heating, and water-quality products including control valves and regulation equipment. Comparable to Zefin's measuring-and-regulation portfolio across both hydronics and HVAC control.
• Caleffi: Italian manufacturer of hydronic components including mixing valves, control valves, and heating regulation accessories. Closely comparable to Zefin's ESBE and BELIMO valve-and-actuator product mix sold through HVAC wholesale.
• Belimo: Swiss manufacturer of HVAC damper actuators, control valves, and sensors. Directly comparable because Belimo is both a Zefin supplier and a competing brand in the same actuator and valve category sold to installers.
• ESBE Group: Swedish manufacturer of mixing valves, actuators, and thermostatic control products for heating systems. Directly comparable as both an ESBE distribution partner and a competing manufacturer in the same mixing-valve/actuator category.

Others

• Grundfos: Danish global manufacturer of circulation pumps used in heating and cooling systems. Zefin already distributes Grundfos pumps; listed as an ecosystem peer because Grundfos shapes the same installer channel rather than competing head-to-head on regulation and controls.

Broad incumbents

• Rexel: European multi-country distributor of electrical, HVAC, and plumbing products serving installers and contractors. Comparable business model to Zefin but at vastly larger scale and broader product scope across many European countries.
• Siemens Smart Infrastructure: Building technologies division covering HVAC controls, building automation, and thermostat systems (including the RVS line that Zefin distributes). Comparable category but vastly broader portfolio and global footprint.
• Danfoss Heating: Global heating solutions division offering valves, thermostats, electronic controls, and full hydronic heating systems. Overlaps with Zefin's portfolio (Danfoss is also a Zefin supplier) but operates at much larger scale across multiple geographies.
• Honeywell Building Technologies: Division of Honeywell offering thermostats, combustion controls, gas detection, and building automation. Overlaps directly with Zefin's HONEYWELL room thermostats, wireless thermostats, and EVOHOME regulators, but at portfolio scale.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat3 records

Key risks5 records

Key highlights7 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

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 Zefin