PLUM

What PLUM does

PLUM Sp. z o.o. (trading as PLUM ELEKTRONIKA) is a privately held Polish industrial-electronics manufacturer founded in 1986 in the Podlasie region, operating from its headquarters in Ignatki near Białystok. The company designs and produces customized OEM electronic controllers and IoT devices for the HVAC, gas, and water-utility sectors, with five operating divisions: PLUM HVAC, PLUM GAS, PLUM WATER, PLUM EMS (contract electronics manufacturing), and PLUM LAB (accredited EMC testing and calibration). Its product portfolio is built around the evoSYSTEM platform, which integrates heat-pump, boiler, underfloor-heating, and ventilation control; the ecoNET Cloud software layer for remote configuration, monitoring, and diagnostics; the evoSYNC energy-management module with the HEMS Dynamic optimization algorithm; and the MacIQ WM IoT billing modules for water meters using NB-IoT and LTE Cat.M1. Supporting products include ecoMULTI multi-circuit controllers, the evoAFS anti-freeze system, intelligent electronic gas volume correctors, and pulse modules for flow meters.

The business model is predominantly B2B OEM: PLUM customizes controllers structurally and programmatically for equipment manufacturers and distributors in HVAC, gas distribution, and water/sewer utilities, then supports customers through R&D and post-sale service. Complementary revenue streams include contract PCB assembly (EMS), accredited EMC testing and calibration services, installer training programs, and a subscription/recurring element via ecoNET Cloud and the xCLOUD connectivity module. Sales are executed by dedicated divisional sales teams (HVAC, GAS, WATER, EMS, LAB) and channel distributors, with a dedicated B2B ordering platform in rollout for streamlined purchasing. Distribution spans six continents with millions of devices deployed; named markets include Poland, broader EMEA, and the United States.

The company markets itself through major industry trade shows (Enlit Europe, MCE Milan, Warsaw HVAC Expo, Solar Energy Expo, WOD-KAN), content channels (PlumTalks podcast, YouTube, multilingual website), and installer training. OEM solutions are built on a SCRUM agile development methodology, with interoperability a stated design priority across competing suppliers' equipment via Modbus, LwM2M, and cloud APIs. Recent recognition includes the 'Pracodawca Podlasia 2025' employer award and a 2026 Warsaw HVAC Expo medal for innovation in HVAC automation and control.

Name

PLUM

Legal name

PLUM Spółka z ograniczoną odpowiedzialnością

Website

https://plum.pl

Company type

Private

Founded year

1986

Operating status

Operating

Headcount range

251–500 employees

Short description

PLUM is a privately held Polish OEM manufacturer of customized IoT electronics and metering devices for HVAC, gas distribution, and water utility equipment makers, operating across five divisions with global deployment across six continents.

Ownership category

akta.pro rank

Product category

Industrial Electronics Manufacturing

NAICS

Automatic Environmental Control Manufacturing for Residential, Commercial, and Appliance Use (334512), Totalizing Fluid Meter and Counting Device Manufacturing (334514)

SIC

Air-Cond & Warm Air Heatg Equip & Comm & Indl Refrig Equip (3585), Industrial Instruments For Measurement, Display, And Control (3823)

akta.pro primary industry

HVAC Controls & Optimization (Smart Thermostats, VAV, Chillers/Boilers Controls) (BPABAGAB)

akta.pro secondary industries

Customer Premise Equipment Interfaces (Regulators, ERTs/Modules & Indoor/Outdoor Meter Sets) (EUAJACAE), Metering Hardware & Field Services (AMI/AMR meters, endpoints, installation, maintenance) (EUANAIAA)

Keywords

• OEM industrial electronics
• HVAC control systems
• Smart gas metering
• IoT water meters
• Electronics manufacturing services

Headquarters

HQ city

Ignatki

HQ country

Poland

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. OEM Electronics Manufacturing: Design and manufacture of customized electronic controllers and IoT devices for HVAC, gas, and water utility equipment manufacturers. Products are integrated into customers' devices and systems.
2. EMS (Electronics Manufacturing Services): PCB production and assembly services for external customers utilizing the company's advanced machinery park.
3. Laboratory Services: Accredited testing (EMC AB 1765) and calibration (AP 074) laboratory services for quality assurance and certification.
4. Remote Management Services: ecoNET Cloud platform and xCLOUD module for remote HVAC system management, monitoring, and diagnostics.
5. Training Services: Training programs for installers on HVAC equipment and systems.

Go-to-market motion2 records

Distribution channels4 records

Marketing channels8 records

Core offering

PLUM designs and manufactures customized OEM electronic controllers, IoT modules, and metering devices for HVAC equipment manufacturers, gas distribution utilities, and water/sewerage utilities. Core offerings include intelligent heat pump and boiler controllers (evoSYSTEM, ecoMULTI, ecoMAX 360B), IoT-enabled water meter modules (MacIQ WM), intelligent gas meters and volume correctors, and the ecoNET Cloud remote management platform. The company also provides electronics manufacturing services (EMS) and accredited EMC testing and calibration laboratory services.

Product overview

PLUM (Plum Elektronika) is a Polish industrial electronics manufacturer producing customized OEM solutions for IoT-based energy management systems. The product portfolio centers on the evoSYSTEM platform — a comprehensive HVAC management system integrating heat pumps, air conditioners, underfloor heating controls (evoFLOOR, xFLOOR), and ventilation — managed through the ecoNET Cloud platform and evoSYNC energy management module. Key controllers include ecoMULTI (multi-circuit installer controller) and ecoMAX 360B expansion modules. For water management, the MacIQ WM provides IoT billing modules for remote meter reading using NB-IoT/LTE. The gas division offers intelligent gas meters and electronic volume correctors. All HVAC products support HEMS Dynamic for dynamic tariff-based energy optimization. PLUM operates accredited testing (EMC AB 1765) and calibration (AP 074) laboratories, and provides EMS contract manufacturing services.

Differentiator

Problem solved

Functional benefit

Brands

• evoSYSTEM: Smart energy management system integrating HVAC devices for intelligent, dynamic and flexible home energy control
• ecoNET Cloud
• MacIQ WM
• MacIQ WM Pulse
• MacBAT
• xFLOOR
• evoFLOOR
• evoAFS
• B2B Platform

Products and services

• evoSYSTEM Comprehensive HVAC management system integrating heat pumps, air conditioners, underfloor heating, ventilation, and energy management. Uses HEMS Dynamic algorithm for dynamic tariff-based energy optimization with up to 25% energy savings. Designed for HVAC equipment manufacturers and smart building integrators.
• ecoNET Cloud Internet-based cloud platform for remote HVAC installation management, configuration, monitoring, energy management, and diagnostics. Accessible from computers and mobile devices with real-time alarm notifications. Used by HVAC service providers, installers, and end customers for remote system management.
• evoSYNC Energy Management Module Intelligent energy management module that dynamically adjusts device operation to maximize savings and system performance using energy price data, external temperature, and device parameters. Integrates heat pumps, air conditioners, EV chargers, energy storage, fan coil units, inverters, and heat recovery units. For HVAC OEMs and smart energy system integrators.
• ecoMULTI System installer controller managing hydraulic installation and entire heating and cooling systems. Supports heat pumps, gas boilers, and electric boilers with hybrid solutions handling up to 7 heating circuits. Designed for HVAC installers and system integrators managing complex multi-source heating installations.
• evoAFS Anti-freeze System Anti-freeze protection system for monoblock heat pumps providing up to 48 hours of battery-powered operation and automatic bypass pump activation below 4°C water temperature. For HVAC manufacturers integrating frost protection into monoblock heat pump products.
• evoFLOOR Intelligent Control Rail Intelligent control rail for underfloor heating management, compatible with evoSYSTEM for automated heating optimization and precise room temperature control. Designed for developer investments and residential underfloor heating installations.
• MacIQ WM Water Meter IoT Module Compact IoT billing module for remote water meter reading using NB-IoT or LTE Cat.M1 technology. Plug & Play installation, IP68 rated, with 10+ year battery life and configurable alarms for leaks, reverse flow, and tampering. For water utilities and water meter manufacturers.
• Intelligent Gas Meters Smart metering and telemetry solutions for natural gas that are secure, cost-reducing, and compliant with international standards. Electronic devices for correcting gas volume measurements based on pressure, temperature, and composition parameters. For gas distribution utilities and gas metering solution providers.
• EMS Electronics Manufacturing Services PCB production and assembly services for external customers utilizing PLUM's advanced machinery park. Contract electronics manufacturing with quality manufacturing, quick turnaround, and competitive pricing. For companies requiring contract PCB production and electronics assembly.
• Accredited Laboratory Services Accredited Testing Laboratory EMC AB 1765 for electromagnetic compatibility testing and Accredited Calibration Laboratory AP 074 for calibration services. For companies requiring product certification, quality assurance, and regulatory compliance testing.

Quantifiable outcome

• Up to 25% energy cost savings using HEMS Dynamic algorithm with dynamic energy tariffs
• +3 more outcomes

Named customers1 record

Segments5 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration4 records

Feature9 records

Partnerships

One partnership is on record.

• T-MobileminorStrategic or Co-development Partner · 1 January 2026Joint exhibition partnership at the WOD-KAN Conference in Wisla (February 2026). Companies collaborated to showcase combined solutions for water utility management, demonstrating Plum's metering modules alongside T-Mobile's connectivity infrastructure.

Scale indicators3 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Kamstrup: Danish manufacturer of smart metering solutions for heat, water, gas, and electricity, with strong European utility relationships. Closely comparable to PLUM's water and gas metering business in technology positioning, OEM-style customization, and European mid-market focus.
• Danfoss: Danish manufacturer of HVAC controls, heating solutions, and district energy components. Closely comparable to PLUM's HVAC division in terms of OEM customer base (heat pump and boiler manufacturers) and integrated controls offering.
• Landis+Gyr: Swiss-headquartered smart metering and grid management provider serving utilities worldwide. Comparable to PLUM in its end-to-end metering hardware plus software stack and its focus on AMI rollouts for gas and water in addition to electricity.
• Diehl Metering: German smart metering specialist offering heat, water, and gas meters with integrated AMR/AMI communications. Directly comparable to PLUM's MacIQ and MacBAT product lines and to its OEM-style customization for European utilities.
• Resideo: US-listed provider of HVAC controls, thermostats, and water management solutions, spun out of Honeywell. Directly comparable to PLUM in residential and light-commercial HVAC controls, smart thermostats, and connected water/leak detection offerings.
• Itron: Global leader in smart metering and AMI solutions for water, gas, and electricity utilities. Directly comparable to PLUM's MacIQ WM water meter modules and intelligent gas metering/corrector portfolio, with a similar end-customer focus on distribution utilities.
• ZENNER: German manufacturer of water, heat, and gas meters with IoT/AMR communication modules. Comparable to PLUM's MacIQ WM and gas corrector portfolio, particularly for European mid-sized utilities and OEM partners.

Regional players

• Apator: Polish metering and electrical equipment group with a strong domestic utility and OEM customer base. Closest regional peer to PLUM, with overlapping exposure to Polish water/gas utilities and similar product positioning in smart metering modules.

Broad incumbents

• Schneider Electric: Global energy management and automation incumbent with EcoStruxure building platform. Overlaps with PLUM's evoSYSTEM and ecoNET Cloud offering, but at significantly larger scale and across a much broader portfolio of building, industrial, and grid customers.
• Honeywell: Global building technologies and HVAC controls incumbent offering thermostats, building automation, and energy management. Overlaps with PLUM's evoSYSTEM, ecoNET Cloud, and HEMS Dynamic energy management portfolio, but at much larger scale and broader scope.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks7 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/user/Plumfilmy
• Facebookfacebook.com/profile.php
• LinkedInlinkedin.com/company/plum-sp-z-o-o-

Compliance5 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Subsidiaries5 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 PLUM