Aucentur

What Aucentur does

Aucentur (legally Arthaud & Associés Atlantique) is a France-based professional services firm providing financial and extra-financial audit and advisory services to SMEs, mid-to-large enterprises, and Société à Mission companies. Founded in Bordeaux in 2005 and led by Laurence Versaille, the firm operates from offices in Bordeaux, Paris, Lyon, and Marseille, and joined Groupe Arthaud & Associés in August 2025. Its core offering spans statutory financial audits (legal/contractual audits, acquisition and restructuring reviews), independent extra-financial verification of CSRD and VSME sustainability reports, and Société à Mission OTI attestations.

The firm's technology stack is methodology-driven rather than software-driven: it applies COFRAC-accredited (No. 3-1913) verification procedures as an Organisme Tiers Indépendant, the ADEME-licensed Bilan Carbone® methodology for carbon footprint assessment across scopes 1-3, ESRS/CSRD compliance and double materiality frameworks, and the VSME reporting standard for non-listed SMEs. Differentiated credentials include the COFRAC OTI accreditation, Bilan Carbone® and Green Management certifications, and Diag Décarbon'Action expert status with Bpifrance.

Aucentur operates a professional services business model with revenue generated through engagement-based fees for audit, assurance, carbon assessment, and RSE/CSR strategy consulting mandates. The firm serves four primary customer segments: French PME/ETI requiring financial and ESG audit services; small SMEs and micro-enterprises adopting VSME reporting; investors and financial institutions requiring validated ESG data; and Société à Mission companies requiring mandatory OTI verification. Distribution is direct, supplemented by referral channels through Bpifrance's Diag Décarbon'Action programme, professional networks (FCI, FILIANCE, Mouvement Impact France, Communauté des Entreprises à Mission), and thought leadership content across its website, LinkedIn, and industry events (Produrable, ChangeNow, FCI colloquia). Pricing is not publicly disclosed, though subsidised programmes (Diag Décarbon'Action) can cover up to 60% of carbon assessment costs for eligible SMEs.

Name

Aucentur

Legal name

Arthaud & Associés Atlantique

Website

https://aucentur.fr

Company type

Private

Founded year

2005

Operating status

Operating

Headcount range

11–50 employees

Short description

Aucentur (Arthaud & Associés Atlantique) is a France-based COFRAC-accredited audit firm providing financial audits, CSRD/VSME sustainability assurance, Bilan Carbone® assessments, and RSE advisory services to French SMEs, mid-to-large enterprises, and Société à Mission companies.

Ownership category

akta.pro rank

Product category

Audit and Assurance Services

NAICS

Environmental Consulting Services (54162), Offices of Certified Public Accountants (541211)

akta.pro primary industry

Carbon Claims, Labeling & Communications Advisory (VCMI/ICVCM Guidance, Claim Substantiation) (EUABADAI)

akta.pro secondary industry

Carbon Market & Policy Advisory (Compliance Schemes, ETS Design, Article 6) (EUABADAA)

Keywords

• Financial audit services
• Sustainability assurance
• Carbon footprint assessment
• ESG due diligence
• CSRD compliance consulting

Headquarters

HQ city

Bordeaux

HQ country

France

HQ region

Europe

Offices3 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Statutory Financial Audit Services: Legal and contractual audit engagements covering statutory audits of financial statements, verification of accounting data requiring an objective signature, acquisition audits, and corporate restructuring reviews. Revenue is generated through professional service fees billed per engagement.
2. Extra-Financial Audit and Assurance: Independent verification of sustainability reports (CSRD, VSME), OTI attestations for Société à Mission companies, and ESG due diligence assignments. Provided exclusively by a COFRAC-accredited OTI (Organisme Tiers Indépendant).
3. Carbon Assessment and Advisory: Bilan Carbone® assessments (ADEME-licensed methodology), carbon footprint measurement across scopes 1, 2, and 3, transition action planning, and CSR strategy advisory. Delivered as consulting engagements, including subsidized programmes such as Diag Décarbon'Action co-funded by Bpifrance and ADEME.
4. RSE/CSR Strategy Consulting: RSE maturity assessments, sustainability strategy development, governance training (CODIR/COMEX for CSRD), and CSR reporting preparation for companies of all sizes. Structured as advisory and consulting mandates.

Go-to-market motion1 record

Distribution channels4 records

Marketing channels7 records

Core offering

Aucentur is a French audit firm providing statutory financial audit engagements and extra-financial (sustainability/ESG) verification services. Its portfolio includes legal and contractual financial audits, CSRD and VSME sustainability report verification, ESG due diligence, COFRAC-accredited OTI attestations for Société à Mission companies, ADEME-licensed Bilan Carbone® carbon assessments, and CSR/RSE strategy consulting. Services are delivered directly from offices in Bordeaux, Paris, and Lyon.

Product overview

Aucentur (Arthaud & Associés Atlantique) is a professional services firm providing audit and advisory services for both financial and extra-financial information. The offering consists of two core service pillars: (1) Financial Audit services including legal/contractual audits and business acquisition support, and (2) Extra-Financial Audit services including CSRD sustainability reporting verification, VSME reporting, and ESG due diligence. The advisory portfolio includes carbon footprint assessment (Bilan Carbone©), CSRD reporting preparation, RSE strategy development, and Mission-Driven Company support. The firm is COFRAC-accredited as an Independent Third Party (OTI) for validation and verification activities.

Differentiator

Problem solved

Functional benefit

Products and services

• Audit d'informations financières

Quantifiable outcome

• Companies report that 60–70% of data needed for a VSME report is already accessible within their organizations, with the firm helping to structure and present it.
• +2 more outcomes

Named customers11 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

Feature4 records

Partnerships

14 partnerships are on record, tiered core and minor.

• COFRACcoreOthersCOFRAC (Comité Français d'Accréditation) granted Aucentur accreditation (No. 3-1913) as an Organisme Tiers Indépendant (OTI) for validation and verification activities. This accreditation is essential for Aucentur to legally provide independent attestations for CSRD reports and Société à Mission declarations, representing the firm's core regulatory credential.
• BpifrancecoreStrategic or Co-development PartnerAucentur is a recognized carbon expert qualified by Bpifrance under the Diag Décarbon'Action programme, co-funded by Bpifrance and ADEME. This partnership enables Aucentur to deliver subsidized carbon assessments to eligible SMEs (up to 60% funding) and receive client referrals through the Bpifrance network.
• ADEMEcoreStrategic or Co-development PartnerADEME (Agence de la transition écologique) co-funds the Diag Décarbon'Action programme alongside Bpifrance, and licenses the Bilan Carbone® methodology used by Aucentur. The partnership provides the methodological foundation for Aucentur's carbon assessment services.
• 1% for the Planet FranceminorStrategic or Co-development PartnerAucentur joined 1% for the Planet France since July 2022, committing to donate 1% of its annual revenue to environmental associations. This membership is part of the firm's third mission objective as a Société à Mission and demonstrates commitment to environmental causes beyond client work.
• Water Family – Du Flocon à la VagueminorOthersWater Family is an environmental association supported by Aucentur through its 1% for the Planet membership. The association focuses on water preservation and ocean protection.
• Sea ShepherdminorOthersSea Shepherd is an international marine conservation organization that appears in Aucentur's client/partnership logo section, indicating a collaborative or support relationship.
• FCI – Fédération des Cabinets IntermédiairesminorOthersAucentur is an active member of FCI, participating in professional colloquia and events. Laurence Versaille regularly contributes to FCI workshops on green finance and CSRD topics, enhancing the firm's professional visibility.
• FILIANCEminorOthersAucentur participates in FILIANCE's professional events and initiatives, co-organizing the FCI Colloque Enjeux RSE & CSRD alongside FCI at Medef Paris.
• Mouvement Impact FranceminorOthersAucentur joined Mouvement Impact France in 2023 to strengthen its involvement in the local impact business community in Nouvelle-Aquitaine and contribute to the regional ecosystem of companies placing ecological and social impact at the core of their operations.
• Communauté des Entreprises à MissionminorOthersAucentur renewed its membership in the French community of Société à Mission companies, connecting with peer organizations committed to integrating social and environmental objectives in their statutes.
• ChangeNowminorOthersAucentur supported the ChangeNow Summit (the world's largest event for planetary solutions) for the second consecutive year, with a team member serving as Team Leader for the 'Cities' pillar. This engagement demonstrates the firm's commitment to climate action beyond client work.
• Pact'AlimminorOthersAucentur was invited to present CSRD auditor expectations for sustainability reports to Pact'Alim, a group of food sector SMEs and ETIs committed to food and ecological transition. Laurence Versaille delivered the presentation.
• L'EspressminorOthersL'Espress is Aucentur's local coffee supplier in Bordeaux, described as an 'engaged coffee' partner, illustrating the firm's commitment to supporting local and responsible businesses.
• ArkoseminorOthersArkose (climbing gym chain) hosted Aucentur's team-building event in September 2025 as part of the firm's internal seminar combining strategy brainstorming and sports activities.

Scale indicators6 records

Recent moves6 records

Expansion highlights6 records

Broad incumbents

• Deloitte France: Big 4 firm with a substantial French audit, risk advisory, and sustainability/ESG practice including OTI-accredited sustainability assurance. Comparable in offering integrated financial and extra-financial audit, though at significantly greater scale and breadth than Aucentur.
• Bureau Veritas: Global testing, inspection, and certification company with a French base and a substantial sustainability/ESG verification practice including CSRD assurance. Comparable in providing accredited third-party sustainability verification, though operating as a much larger incumbent across multiple industries.
• Forvis Mazars: Global mid-tier audit and advisory firm (formerly Mazars) with a sizeable French practice and a dedicated sustainability/CSRD assurance team. Directly comparable as a mid-tier competitor offering both statutory audit and extra-financial assurance, though at materially larger scale than Aucentur.
• KPMG France: French member of the Big 4 with a large audit practice and dedicated CSRD/ESG assurance services. Comparable in delivering both statutory and extra-financial assurance, but at materially larger scale and serving primarily large-cap and listed-entity clients.

Direct peers

• RSM France: French member of the RSM international mid-tier audit network, offering statutory audit, transaction advisory, and ESG consulting to French mid-market companies. Direct peer at the same scale tier with overlapping SME/ETI client base and emerging sustainability practice.
• Grant Thornton France: Mid-tier international audit network with a French member firm providing statutory audit alongside ESG and sustainability advisory. Closely comparable in scale tier and dual financial/extra-financial audit positioning, with overlapping French SME and mid-market client base.
• BDO France: French member of the BDO international audit network, providing statutory audit, CSR/ESG advisory, and CSRD-related services to French SMEs and mid-market companies. Direct peer in terms of mid-tier audit with sustainability practice targeting the same client segments.
• Carbone 4: Paris-based independent consultancy specialized in carbon strategy, climate transition, and Bilan Carbone® assessments. Closely comparable as a France-focused carbon and ESG advisory specialist serving similar corporate clients on decarbonation and sustainability strategy.

Peers

• EcoAct (Accenture): French-origin carbon consulting firm (now part of Accenture) providing carbon footprint measurement, climate strategy, and net-zero advisory. Comparable in carbon advisory service line and French market focus, though at larger scale and as part of a global consultancy.

Emerging players

• Greenly: France-based carbon accounting SaaS platform serving SMEs with automated Scope 1–3 measurement and CSRD/VSME-aligned reporting. Comparable as a French-headquartered sustainability data and reporting provider targeting the same SME segment, though delivered via a technology platform rather than professional services.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/aucentur
• Xx.com/Aucentur33

Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 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 Aucentur