Acepp

What Acepp does

ACEPP is a French industrial engineering consulting firm specializing in applied engineering for the construction, testing, commissioning, and maintenance of complex industrial infrastructure. The company is organized around five core service lines: PMO/OPC (project management and coordination), Ingénierie de Construction (construction supervision), Essais (testing and commissioning), MCO (maintenance engineering), and Ingénierie Site (site engineering including 3D design, nuclear safety studies, waste management, and regulatory documentation). ACEPP is a subsidiary of Heverett Group (created 2019), alongside sister brand AXEAL which focuses on industrial information systems; the group employs approximately 300 collaborators and reports 25M€ in annual revenue. Headquartered in Lyon with eight additional French offices and a UK subsidiary in Bristol, ACEPP operates primarily in highly regulated nuclear and defense/naval markets.

The company's customer base is concentrated in major French industrial primes and government entities, including EDF, Framatome, Naval Group, Orano, TechnicAtome, ArianeGroup, CEA, Thales, Eiffage, Vinci, and Chantiers de l'Atlantique, with engagements spanning EPR2 reactor programs, naval aircraft-carrier (S3G, PANG) nuclear reactors, MOX/La Hague fuel cycle operations, submarine maintenance, and Ariane launch infrastructure. Required qualifications include ISO 19443 (nuclear quality management, January 2023), MASE (safety, 2022), Radioprotection (2017), and group-level ISO 9001 (2023), which together form the compliance baseline for bidding on these programs.

ACEPP generates revenue through professional services fees for consultant placements and project-based engagements, priced on a quote basis by project scope, consultant seniority, and contract terms, with multi-year contract cadence. Go-to-market is enterprise field sales via dedicated business managers and account managers working directly with major industrial accounts in France and, increasingly, the UK and India (Jaitapur/Edvance). The business model is therefore labor-arbitrage and certified-expertise based rather than technology-platform based, with no proprietary software, AI/ML capabilities, or digital product disclosed.

Name

Acepp

Legal name

HEVERETT

Website

https://acepp.com

Company type

Private

Founded year

2017

Operating status

Operating

Short description

ACEPP is a French industrial engineering consulting firm providing PMO, construction supervision, testing/commissioning, and maintenance engineering services to major nuclear, defense, and naval primes including EDF, Framatome, Naval Group, and Orano across France and the UK.

Ownership category

akta.pro rank

Product category

Industrial Engineering Services

NAICS

Engineering Services (541330), Architectural, Engineering, and Related Services (5413), Management, Scientific, and Technical Consulting Services (5416), Other Scientific and Technical Consulting Services (54169)

SIC

Services-Engineering Services (8711), Services-Management Consulting Services (8742)

akta.pro primary industry

Project & Program Management (PMO), Controls & Reporting (EUAKAAAC)

akta.pro secondary industries

Nuclear Plant EPC & Construction (EUAEAAAC), Instrumentation & Control (I&C) Integration & Commissioning Support (EUAKAAAH), Balance-of-Plant (BOP) EPC (Turbine Island, Conventional Systems, Buildings) (EUAKAAAF), Instrumentation, Controls & Automation Engineering Consulting (BPAHAIAM), Process Safety & Major Hazard Risk Management (PSM) (BPAHAJAE)

Keywords

• Industrial engineering consulting
• Nuclear engineering services
• Defense engineering
• Construction management
• Maintenance engineering

Headquarters

HQ city

Chazelles-sur-lyon

HQ country

France

HQ region

Europe

Offices9 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Professional Engineering Services: ACEPP provides specialized engineering consulting services including PMO/project management, construction supervision, testing and commissioning, and maintenance engineering. Revenue is generated through professional service fees charged for consultant placements and project-based engagements in the nuclear and defense industrial sectors.

Pricing tiers

Go-to-market motion2 records

Distribution channels2 records

Marketing channels4 records

Core offering

ACEPP provides specialized industrial engineering consulting services for the construction, testing, commissioning, and maintenance of complex infrastructure in the nuclear and defense sectors. The company deploys multidisciplinary technical teams both in France and internationally, covering PMO/project management, construction supervision, site engineering, testing and commissioning, and operational maintenance for clients such as EDF, Naval Group, Orano, and Framatome.

Product overview

ACEPP is an industrial technology consulting company specializing in engineering services for complex infrastructure construction, primarily serving the nuclear and defense sectors. The company operates as a specialist in applied engineering for complex infrastructure within the Heverett Group. ACEPP's offering is organized around five core service areas: (1) Essais (Testing and Commissioning) for preparation, execution, analysis and operator transfer; (2) PMO/OPC (Project Management Office and Coordination) for project scheduling, risk management and quality; (3) MCO (Maintenance Engineering) for operational maintenance optimization; (4) Construction Supervision for works management and site coordination; and (5) Site Engineering for technical studies, nuclear safety, and regulatory compliance. ACEPP also offers specialized solutions in civil and military nuclear sectors as well as naval engineering through its multidisciplinary technical teams deployed in France and internationally.

Differentiator

Problem solved

Functional benefit

Products and services

• Essais (Testing and Commissioning) Testing and commissioning services including test preparation, execution, analysis, and handover to operators for nuclear and naval installations.
• PMO / OPC (Project Management and Coordination) Project management office and coordination services encompassing scheduling, risk management, cost control, and quality process management.
• MCO (Maintenance Engineering) Operational maintenance engineering services to optimize availability and performance of complex industrial installations, including technical support, configuration management, and integrated logistics support.
• Ingénierie de Construction (Construction Engineering) Construction works supervision and site engineering including charged affaires, works supervisors, and logistics coordination for complex infrastructure projects.
• Ingénierie Site (Site Engineering) Site engineering services including 3D design, mechanical studies, nuclear safety studies, waste management, regulatory documentation, and compliance management.

Quantifiable outcome

• 300 specialized collaborators deployed across nuclear and defense projects
• +1 more outcomes

Named customers11 records

Segments5 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.

• Heverett GroupcoreOthers · 1 January 2019ACEPP is a subsidiary of Heverett Group, which was created in 2019. Heverett Group comprises ACEPP and AXEAL, with ACEPP specializing in engineering applied to complex infrastructure construction while AXEAL focuses on information systems for industrial performance.

Scale indicators6 records

Recent moves9 records

Expansion highlights5 records

Direct peers

• Ekium: French industrial engineering consultancy with strong nuclear, energy and process-industries practices; competes for the same project management and site engineering scopes at French industrial clients.
• Onet Technologies: French industrial services group with a dedicated nuclear division (cleaning, dismantling, maintenance, engineering) competing head-to-head with ACEPP for site services at French nuclear facilities.
• Nuvia: Vinci subsidiary providing nuclear engineering, decommissioning, radiation protection and waste-management services across France and the UK; overlaps directly with ACEPP's testing, MCO, and radioprotection offerings.
• Vulcain Ingénierie: French independent engineering consultancy specialized in energy and industrial infrastructure, including nuclear project management and construction supervision — directly comparable services profile.
• Assystem: French engineering and nuclear project management specialist serving EDF, Framatome, Orano and other ACEPP clients. Closest direct competitor in PMO, I&C integration, and nuclear site engineering across France.

Broad incumbents

• AtkinsRéalis (SNC-Lavalin): Global engineering services group with a sizable nuclear practice (CANDU, new-build, decommissioning) competing for the same type of large engineering mandates as ACEPP at international scale.
• SPIE: Large European multi-technical services group with significant nuclear and industrial engineering activities in France. Overlaps with ACEPP on maintenance engineering and technical services but at much larger and broader scale.
• Framatome (services arm): While primarily an OEM, Framatome also provides extensive site services, engineering and commissioning support for the French fleet — a broader incumbent competitor and also a key ACEPP customer.
• Worley: Global energy, chemicals and resources engineering services firm with nuclear and defense-adjacent capabilities; comparable business model of multi-disciplinary engineering services to large industrial clients.

Others

• Vinci Construction / Chantiers de l'Atlantique (industrial services): Customer and broader ecosystem participant; Vinci operates in construction and infrastructure adjacent to ACEPP's projects, including Chantiers de l'Atlantique shipbuilding. Included as an adjacent industry player shaping the same project ecosystem.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/acepp-entreprise

Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

Subsidiaries1 record

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 Acepp