Mesar

What Mesar does

Mesar s.r.l. is an Italian designer and manufacturer of power electronic systems, founded in 1986 and headquartered in Guidonia with a registered office in Rome. The company specializes in power conversion, control electronics, and integrated power supply systems for three primary verticals: railway infrastructure and rolling stock, defense (naval and land-based), and industrial applications. Its product portfolio includes static converters with Silicon Carbide (SiC) and traditional silicon technologies, battery chargers, DC-DC converters, twelve-pulse silicon rectifiers (up to 5400 kW), uninterruptible power systems (UPS) for harsh environments, bidirectional voltage limiters, radar consoles, test transponders, and dedicated power supplies for hydrogen and oxygen electrolyzers.

The company's technology is anchored in qualified, certification-backed power-electronics engineering. Products are qualified by Rete Ferroviaria Italiana for safety-critical railway infrastructure applications, and Mesar holds ISO 9001 (since 1997), ISO 14001 (since 2007), and ISO/TS 22163 (IRIS, since 2010) certifications. It operates EPA-certified laboratories and supplies major Italian railway operators and primes (Trenitalia, RFI, Alstom, Bombardier, regional operators) plus defense integrators (Leonardo, MBDA, Bharat Electronics) and industrial customers.

Mesar generates revenue through a mix of custom-engineered hardware sales and recurring service contracts, including maintenance of both Mesar and third-party equipment, reengineering services to address component obsolescence, and technical training courses. Go-to-market is enterprise direct sales into regulated, tender-driven procurement environments. Since 2016, Mesar has operated as a subsidiary of NTS Group, an Italian strategic acquirer that grew group sales approximately 4x over a four-year period through additional acquisitions, with Mesar serving as the group's center of excellence for power electronics across defense, naval, and railway domains.

Name

Mesar

Legal name

Mesar s.r.l.

Website

https://mesar.it

Company type

Private

Founded year

1986

Operating status

Operating

Headcount range

11–50 employees

Short description

Mesar is an Italian designer and manufacturer of certified power electronic systems—including static converters, UPS, rectifiers, and radar consoles—for Italian railway operators, European defense primes, and industrial customers including hydrogen-electrolyzer manufacturers; it has operated since 1986 as a subsidiary of NTS Group.

Ownership category

akta.pro rank

Product category

Railway Power Electronics

NAICS

Switchgear and Switchboard Apparatus Manufacturing (335313), Electrical Equipment Manufacturing (33531)

SIC

Switchgear & Switchboard Apparatus (3613), Electrical Industrial Apparatus (3620)

akta.pro primary industry

Switchgear & Switchboards (HV/MV/LV, GIS/AIS) (IMAGAAAB)

akta.pro secondary industries

Low-Voltage Switchboards & Panelboards (LV distribution panels, MCCs, switchboards) (IMAGAEAA), Circuit Breakers, Disconnectors, Earthing Switches & Switchgear Components (EUADACAH)

Keywords

• Power electronics systems
• Railway power conversion
• Auxiliary converters
• Uninterruptible power supplies
• SiC technology converters

Headquarters

HQ city

Guidonia

HQ country

Italy

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Power Electronics Hardware Sales: Sale of power electronic systems including static converters, inverters, battery chargers, UPS systems, and integrated power systems for railway, defense, and industrial applications.
2. Maintenance and Support Services: Full-service maintenance contracts for equipment, including both Mesar products and third-party manufactured equipment. Covers repairs, periodic maintenance, preventive maintenance packages, and field service operations.
3. Training and Courses: Technical training courses for customer personnel involved in maintenance, installation, and repair activities. Also offers on-site courses at customer locations.
4. Reengineering Services: Reengineering service for electronic products/systems to increase functionality and resolve component obsolescence issues.

Go-to-market motion1 record

Distribution channels1 record

Core offering

Mesar designs and manufactures electronic equipment for power conversion, data transmission, control electronics, and integrated power supply systems. Its portfolio includes static converters, inverters, battery chargers, DC-DC converters, UPS systems, and integrated power systems for railway (infrastructure and rolling stock), defense (naval and land-based), and industrial applications. The company also delivers maintenance, reengineering and training services for both its own products and third-party electronic equipment.

Product overview

Mesar is a Power Electronic Systems company that designs and manufactures electronic equipment focused on power conversion, data transmission, control electronics, and integrated power systems. The company operates across three main sectors: Railway (covering both infrastructure and rolling stock/rotabile), Defense (including naval and land-based systems), and Industry. The product portfolio includes specialized converters and power systems such as auxiliary converters for railway coaches (with SiC technology, liquid cooling, and various input voltages), SIAP uninterruptible power systems for railway safety installations, silicon rectifiers, voltage limiters, and defense products including UPS systems, radar consoles, and test transponders. Services include maintenance, reengineering, and training courses. Mesar is part of NTS Group and operates EPA-certified laboratories.

Differentiator

Problem solved

Functional benefit

Products and services

• Bidirectional Voltage Limiters

Named customers18 records

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration1 record

Feature6 records

Partnerships

One partnership is on record.

• NTS GroupcoreOthers · 1 January 2016Mesar was acquired by NTS Group in 2016. NTS Group is a leader in Power and Control Electronics industry serving Defense, Naval, and Railway sectors. Mesar serves as a center of excellence for power electronics within the group, with competencies in design and manufacture of electrical and electronic apparatus focused on power converters for railway, naval, and avionics sectors.

Scale indicators5 records

Expansion highlights5 records

Direct peers

• CAF Power & Automation: Spanish subsidiary of CAF Group that designs and manufactures traction inverters, auxiliary converters, on-board power systems and energy storage products for rail rolling stock — directly competing with Mesar's rolling stock converter portfolio.
• Ingeteam: Spanish electrical engineering group with an Ingeteam Traction division that makes power converters, auxiliary converters and battery chargers for rail and EV traction — overlapping product portfolio and customer base with Mesar.
• Medcom: Polish manufacturer of static converters, inverters and power electronics for railway rolling stock and trolleybuses — closely matching Mesar's on-board converter product lines and voltage classes (3 kVdc input).
• Traktionssysteme Austria (TSA): Austrian specialist in traction motors and power electronics for rail vehicles, including auxiliary and propulsion converters — directly comparable to Mesar's rolling stock business.
• EKE Group: Finnish supplier of train electronics including power converters, battery systems and diagnostics for rail rolling stock — comparable mid-sized European specialist operating in adjacent rail electronics niches.

Broad incumbents

• ABB E-mobility / Hitachi Energy: Global power-electronics majors offering rail traction converters, auxiliary power supplies and grid-side equipment within broad industrial portfolios — significant overlap with Mesar's product categories but as part of much larger, diversified businesses.
• Siemens Mobility: Division of Siemens producing integrated rail rolling stock and full train power electronics (auxiliary converters, traction inverters) — competes with Mesar both as a substitute supplier and as a customer for some niche power electronics.
• Alstom: Global rail OEM with vertically integrated power electronics for rolling stock and rail infrastructure — listed as a Mesar customer (Alstom Ferroviaria) but also a competing supplier on tenders.
• Hitachi Rail: Major rail OEM with in-house traction and auxiliary power electronics, signalling and turnkey rolling stock — competing supplier of subsystems that overlap with Mesar's product range.
• CRRC Times Electric: Chinese rail power electronics and traction drive manufacturer within the CRRC group — competing in the global converter market, particularly relevant as Chinese rail suppliers expand into Europe.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

• Facebookfacebook.com/100048855312455
• LinkedInlinkedin.com/company/mesar-s.r.l.

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

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 Mesar