Laag Engineers GmbH

What Laag Engineers GmbH does

Laag Engineers GmbH is a privately-held, owner-managed engineering consultancy founded in 2014 and headquartered in Düsseldorf, Germany. The firm specializes exclusively in Technische Gebäudeausrüstung (TGA) — technical building equipment — providing Ausschreibung (tendering) and Vergabebegleitung (procurement support), Bauüberwachung (construction supervision), and Projektcontrolling (project controlling) for the technical equipment scope of construction projects, aligned to German HOAI Leistungsphasen 6-9. Coverage spans heating (Heizung), sanitary (Sanitär), air conditioning (Klima), ventilation (Lüftung), electrical systems (Stark- und Schwachstrom), and building management technology (Gebäudeleittechnik/GLT). The firm also offers Technische Due Diligence as a pre-investment advisory service for property evaluation.

The company operates through five regional offices — Düsseldorf (headquarters), Berlin, Frankfurt, Hamburg, and Munich — each headed by a dedicated Niederlassungsleiter, providing nationwide coverage of Germany's primary commercial real estate development corridors. The core team of 22 employees is supplemented by a nationwide expert network of TGA specialists (Fachplaner, Konstrukteure, Versorgungsingenieure, Verfahrens- und Nachrichtentechnik). Between 2016 and 2021, the firm evaluated objects valued at approximately €25 billion across roughly 54 projects. Notable engagements include Siemens Campus Erlangen, Edge SXB Berlin, Trivago HQ Düsseldorf, LYGHT Düsseldorf, Hyatt Place Gateway Gardens Frankfurt, ABC-Tower Berlin, One Cologne, and the ElbAir Airbus service center in Hamburg.

Laag Engineers generates revenue exclusively through project-based professional services fees, with pricing determined by scope, size, and complexity on a quote basis — no publicly disclosed rate card. The client base is entirely enterprise, comprising real estate developers, project management firms, property owners, and institutional investors (e.g., Immofinanz, Witte Projektmanagement, Edge Technologies, DGI, Union Investment, Development Partner AG, HW-Ingenieure, AirHH). Customer acquisition is driven by direct B2B relationships, industry reputation, and referrals rather than outbound marketing. The firm is led by co-Managing Directors Michael Laag (founder, previously Managing Director of HSKL GmbH) and Carsten Gonsior, with no external institutional investors, no subsidiaries, and no disclosed funding rounds.

Name

Laag Engineers GmbH

Legal name

LAAG Engineers GmbH

Website

https://laag-engineers.de

Company type

Private

Founded year

2014

Operating status

Operating

Headcount range

1–10 employees

Short description

Laag Engineers GmbH is a German owner-managed TGA (technical building equipment) engineering consultancy specializing in construction supervision, tendering, and project controlling across HOAI work phases 6-9. It serves enterprise real estate developers, investors, and project managers from five regional offices with 22 staff plus a nationwide specialist network.

Ownership category

akta.pro rank

Product category

Engineering Consulting Services

NAICS

Engineering Services (54133), Engineering Services (541330)

SIC

Services-Engineering Services (8711), Services-Engineering, Accounting, Research, Management (8700)

akta.pro primary industry

Systems Engineering & Technical Program Management (BPAHAIAI)

akta.pro secondary industry

Construction Program Management (Multi-site/Portfolio) (IMAFAAAF)

Keywords

• TGA engineering consulting
• Building services engineering
• Construction supervision services
• Technical due diligence
• HOAI project controlling

Headquarters

HQ city

Düsseldorf

HQ country

Germany

HQ region

Europe

Offices5 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. TGA Consulting Services: Professional engineering consulting services for technical building equipment including Ausschreibung (tendering), Vergabebegleitung (procurement support), Bauüberwachung (construction supervision), and Projektcontrolling (project controlling) during phases 6-9 of construction projects. Revenue is generated through project-based consulting fees for real estate developers, property owners, and investors.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels2 records

Core offering

LAAG Engineers GmbH provides specialist engineering consulting services for technical building equipment (TGA/Technische Gebäudeausrüstung) in Germany. The firm delivers tendering and procurement support, construction supervision, and project controlling across HOAI work phases 6-9, covering heating, sanitary, air conditioning, ventilation, electrical systems, and building management systems (GLT), as well as technical due diligence for property evaluations.

Product overview

LAAG Engineers GmbH is a privately-owned engineering consultancy specializing in technical building equipment (TGA - Technische Gebäudeausrüstung). Founded in 2014 and headquartered in Düsseldorf, the company operates as a single integrated service offering rather than a platform-plus-modules architecture. Their core services encompass TA-Bauüberwachung und Controlling (construction supervision and project controlling), Ausschreibung und Vergabebegleitung (tendering and procurement support), and Technische Due Diligence. These services are delivered across five technical specialties: Heizungstechnik (heating), Sanitärtechnik (sanitary), Klimatechnik (air conditioning), Lüftungstechnik (ventilation), Stark- und Schwachstrom (electrical systems), and Gebäudeleittechnik/GLT (building management systems). The company works on German HOAI work phases 6-9, providing Ausschreibung, Begleitung der Vergabe, Bauüberwachung, and Projektcontrolling to ensure projects are delivered on quality, schedule, and budget.

Differentiator

Problem solved

Functional benefit

Products and services

• TA-Bauüberwachung und Controlling (Construction Supervision and Project Controlling) Construction supervision and project controlling for technical building equipment (TGA) across German HOAI work phases 6-9, including quality control, schedule management, and cost-efficiency oversight for real estate developers, property owners, and general contractors.
• Ausschreibung und Vergabebegleitung (Tendering and Procurement Support) Tendering and procurement support services for technical building installations, including preparation of requirement catalogs, cost comparisons, functional specifications, and contract negotiations on behalf of clients.
• Technische Due Diligence (Technical Due Diligence) Advisory service that analyzes the current status of technical building equipment (TA) for property evaluation and investment decisions, providing assessment of existing installations and upgrade requirements.

Quantifiable outcome

• Approximately 25 billion euros in objects evaluated during 2016-2021 period
• +1 more outcomes

Named customers10 records

Segments3 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature2 records

Scale indicators4 records

Recent moves6 records

Expansion highlights4 records

Broad incumbents

• Arup: Global engineering firm with a strong building services and MEP design practice. Comparable in technical depth on complex TGA work but operates at a much larger scale across multiple geographies.
• Drees & Sommer SE: Large Stuttgart-based engineering and consulting firm offering TGA, construction supervision, and project management across the real estate lifecycle. Significantly larger than LAAG but operates in the same HOAI phase 6-9 supervision and controlling space.
• WSP Global: International engineering consultancy with building services, MEP and TGA consulting practices across Europe. Operates in the same German commercial real estate market with a much larger bench and global reference base.
• Ramboll Group: Denmark-based international engineering and consulting firm with a building services practice covering MEP design and supervision. Competes for major German commercial real estate advisory mandates.
• BuroHappold Engineering: International engineering consultancy with strong MEP, building services, and sustainability-focused TGA capabilities. Overlaps with LAAG on complex, sustainability-driven commercial real estate projects in Germany.
• AECOM: Global engineering and infrastructure consultancy with a substantial building services and MEP practice in Germany. Competes for the same TGA supervision and consulting mandates but offers far broader geographic and disciplinary scale.
• Sweco AB: European engineering consultancy with significant building services and MEP/TGA expertise in Germany and the Nordics. Similar consulting services across HOAI-equivalent phases but at much greater scale.
• Meinhardt Group: International engineering consultancy with MEP/TGA capabilities serving major commercial and mixed-use developments. Comparable on building services supervision and consulting work, particularly on large flagship projects.

Direct peers

• ZWP Ingenieur-AG: German engineering consultancy specializing in technical building equipment (TGA) and MEP services across HOAI work phases. Closely comparable to LAAG in service scope, German market focus, and project-based consulting model.
• Graner + Partner Ingenieure GmbH: Bergisch Gladbach-based TGA specialist providing engineering services for heating, ventilation, sanitary, climate, electrical, and building management systems. Comparable mid-sized German MEP/TGA consultancy with similar project-based consulting model.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat3 records

Key risks5 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/laag-engineers-gmbh

Revenue estimate

Valuation estimate

Number of profiles

Profiles6 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 Laag Engineers GmbH