About us

We are LENASSI consulting engineers
your engineering services partner

At LENASSI we specialise in design of mechanical and electrical systems for commercial, industrial and special purpose buildings. Beyond design, we also offer commissioning (Cx), energy modelling, EPCs, energy consulting and forensic engineering.

Founded in 1991, we have since developed into a young and dynamic team of astute engineers, supported by experience and resourcefulness of the senior partner at the firm, Mr. Lenassi.

Our work includes both new construction and renovation projects, serving a wide spectrum of facilities: office, retail, industrial, healthcare, hospitality, restaurants, education, public institutions, sports & entertainment, data centers, defence, pharmaceutical, multi-family residential and more.

We can support you through all phases of a project, from initial studies and planning to design and commissioning. Our experience with various types of facilities and mechanical systems allows us to offer best engineering solutions for even the most complex projects.

At LENASSI, we have to date provided engineering services for more than 700 projects with more than a million square meters. Our portfolio includes projects in a wide range of applications for both small and large-scale enterprises.

Company Management

Our expertise is demonstrated through strong credentials of our team.

We are continuously improving our skills and building a pleasant and motivating working environment.

Urban Primožič

CEO
MSc Mechanical Engineering
PE, ACG CxA

Mitja Lenassi

Senior Partner
BSc Mechanical Engineering
PE, ASHRAE, ACG CxA

Have a Question?

Call us or send us a message and we will get back to you.

Have a Question?

Call us or send us a message and we will get back to you.

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