Hseq Professional On & Offshore Gmbh

What Hseq Professional On & Offshore Gmbh does

HSEQ Professional on & offshore GmbH is a German engineering and consulting firm founded in 2013 by Guido Sanders, specializing in Health, Safety, and Environment (HSE) management, project planning, project implementation, auditing, and certification services for the energy and infrastructure sector. The company serves large transmission system operators (TenneT, Amprion, TransnetBW), offshore wind developers (Vattenfall, Iberdrola), cable system operators (Nord Stream 2, NKT), and major engineering and construction firms, with project engagements spanning flagship German energy transition infrastructure such as SuedLink, A-Nord, and the DanTysk and Sandbank offshore wind farms.

The firm's service portfolio is organized around four pillars — Project Planning, Project Implementation, Auditing & Certification, and Consulting — applied across three business fields: Renewable Energy & Environment, Network Operators & Energy Transport, and Energy & Supply. It holds ISO 9001 and ISO 45001 certifications and is the first company in its sector to achieve Safety Culture Ladder Level 4 (SCL 2.0). The company operates from Heinsberg (headquarters) and Westerstede, runs its own training academy in Wassenberg-Birgelen, and employs roughly 65-70 specialists.

HSEQ Professional generates revenue through professional services engagements delivered on a quote-based, project-by-project basis under enterprise framework agreements. Go-to-market is direct enterprise sales into large infrastructure owners and operators. In August 2025 the company was acquired by RelyOn, an international safety, compliance, and competence services group, with the transaction closing on December 15, 2025; HSEQ continues to operate under its established name, leadership, and locations under RelyOn's ownership.

Name

Hseq Professional On & Offshore Gmbh

Legal name

HSEQ Professional on & offshore GmbH

Website

https://hseq-professional.com

Company type

Private

Founded year

2013

Operating status

Acquired

Headcount range

11–50 employees

Short description

HSEQ Professional is a German engineering and consulting firm specializing in HSE management, project planning, auditing, and certification services for energy and infrastructure clients including TenneT, Amprion, TransnetBW, and offshore wind developers. Acquired by RelyOn in 2025.

Ownership category

akta.pro rank

Product category

Engineering and HSE Consulting Services

NAICS

Architectural, Engineering, and Related Services (5413), Management, Scientific, and Technical Consulting Services (5416)

SIC

Services-Engineering Services (8711)

akta.pro primary industry

Health, Safety & Environment (HSE) Training (EDAGANAI)

Keywords

• HSE management consulting
• Energy infrastructure engineering
• Project planning consulting
• Auditing certification services
• Civil engineering advisory

Headquarters

HQ city

Heinsberg

HQ country

Germany

HQ region

Europe

Offices3 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Engineering and Consulting Services: Professional services revenue generated through project planning, project implementation, auditing, certification, and consulting engagements for energy and infrastructure clients. Services include HSE management, construction supervision, and technical consulting.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

HSEQ Professional is an independent engineering and consulting firm that plans and delivers projects for internationally operating clients in the energy and infrastructure sector. Its core offering spans four service pillars — project planning, project implementation, auditing & certification, and consulting — combining expertise in HSE (Health, Safety, Environment), procurement, consulting, and civil engineering. Services are applied across three business fields: Renewable Energy & Environment, Network Operators & Energy Transport, and Energy & Supply.

Product overview

HSEQ Professional is an independent engineering and consulting firm specializing in energy and infrastructure. The company offers a unified portfolio of four core service pillars: Project Planning, Project Implementation, Auditing & Certification, and Consulting. These services are delivered across three business fields (Renewable Energy & Environment, Network Operators & Energy Transport, Energy & Supply) and are applied to major infrastructure projects including SuedLink, ISKE, and offshore wind farm developments. The company operates its own academy for training and professional development.

Differentiator

Problem solved

Functional benefit

Products and services

• Project Planning Services

Quantifiable outcome

• First company in the consulting and occupational safety sector to achieve Safety Culture Ladder Level 4 (SCL 4)
• +2 more outcomes

Named customers19 records

Segments4 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Partnerships

One partnership is on record.

• RelyOncoreStrategic or Co-development Partner · 28 August 2025HSEQ Professional was acquired by RelyOn, an international leader in safety, compliance, and competence services with over 40 facilities worldwide and a 50+ year history. The acquisition strengthens RelyOn's presence in Germany and expands capabilities in electrical services and infrastructure consulting. HSEQ Professional continues operations under its established name with added strength of international network and access to global knowledge.

Scale indicators7 records

Recent moves7 records

Expansion highlights5 records

Broad incumbents

• DNV: Norway-based assurance and energy advisory firm with maritime, offshore wind and energy certification services - closely comparable to HSEQ's offshore HSE and SCL/ISO certification work, though at global scale.
• Ramboll: Large international engineering, design and consultancy firm with energy transition and HSE capabilities serving transmission and wind developers; overlaps with HSEQ's service areas but at much greater scale and breadth.
• AFRY: Sweden-headquartered engineering and design consultancy (formerly Pöyry) with global energy practice covering transmission, wind and HSE advisory - competes for similar TSO mandates but at significantly larger scale than HSEQ.
• Tractebel (Engie): Engineering consultancy arm of Engie providing owner's engineer, HSE and environmental services on energy and transmission projects; comparable capability set but part of a global multi-disciplinary portfolio rather than a specialist HSE firm.
• Arcadis: Global design, engineering and consultancy firm with energy and environmental safety advisory practices addressing similar transmission and renewable clients; broader portfolio but overlapping HSE/environmental proposition.

Direct peers

• DEKRA: Stuttgart-headquartered testing, inspection and certification firm offering HSE/occupational safety services and certification audits for energy and industrial clients across Europe, closely mirroring HSEQ's audit-and-certification plus safety coordination business model.
• TÜV SÜD: German-based testing, certification and engineering services group with a dedicated Industry & Energy division that delivers HSE consulting, ISO certification and safety coordination for power and infrastructure clients - directly comparable to HSEQ's integrated HSE + engineering offering.
• TÜV Rheinland: German testing, inspection and certification body with extensive energy and industrial HSE services including ISO 9001/45001 auditing and safety culture programs - a same-sector peer competing for the same TSO and energy-developer mandates.
• Fichtner: Independent German engineering consultancy headquartered in Stuttgart focused on energy infrastructure (transmission, generation, renewables) and owner's-engineer/technical advisory work - comparable in scale, independence and TSO client base to HSEQ.
• RINA: Italy-headquartered certification, marine and energy engineering group with HSE advisory, project supervision and certification services for offshore and energy infrastructure - directly comparable to HSEQ's offshore wind (DanTysk, Sandbank) HSE and certification work.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks7 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/hseq-professional-on-offshore-gmbh

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles8 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 Hseq Professional On & Offshore Gmbh