What Altermès does

Altermès is a French multidisciplinary advisory firm, registered in Versailles (RCS 883 701 609) and administratively headquartered in Paris, with a third office in Lisieux. Founded in 2020, the firm delivers professional services across four pillars: Finance & Compliance (accounting, statutory audit, financial valuation, wealth management, treasury, risk management), Transformations (strategy and organization consulting, interim management, digital transformation, training), Legal (lawyer-led services drawing on experience from major law firms and international groups), and Durabilité (sustainability advisory covering CSRD compliance, decarbonization trajectory, and ESG strategy).

The firm serves French enterprise and mid-market companies (ETI) subject to regulatory and transformation pressures, with additional services for high-net-worth individuals and business owners on wealth structuring. Services are delivered directly by partners and directors on a project/quote-based engagement model, with no proprietary SaaS, technology platform, or AI product disclosed. The firm uses a content-led go-to-market approach (altermes.fr article library, YouTube channel, Webikeo webinars, newsletter) to generate thought leadership around regulatory and business topics, alongside partner-led direct sales to enterprise clients.

Name

Altermès

Legal name

Altermès

Website

https://altermes.fr

Company type

Private

Founded year

2020

Operating status

Operating

Headcount range

11–50 employees

Short description

Altermès is a French multidisciplinary advisory firm providing accounting, audit, legal, consulting, risk management, treasury, digital transformation, and sustainability services to enterprise and mid-market companies in France.

Ownership category

akta.pro rank

Product category

Management Consulting

NAICS

Management Consulting Services (54161), Administrative Management and General Management Consulting Services (541611), Other Management Consulting Services (541618), Legal Services (5411)

SIC

Services-Management Consulting Services (8742), Services-Legal Services (8111)

akta.pro primary industry

Change Management & Transformation Consulting (BPAHAGAC)

akta.pro secondary industries

Digital Strategy & Transformation (BPAHAEAA), Organization Design & Change Management Consulting (BPAHACAD)

Keywords

• Multidisciplinary consulting
• Accounting services
• Audit services
• Risk management advisory
• Sustainability consulting

Headquarters

HQ city

Paris

HQ country

France

HQ region

Europe

Offices4 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Distribution channels1 record

Marketing channels6 records

Core offering

Altermès is a French multidisciplinary consulting firm delivering accounting, statutory audit, legal, financial valuation, treasury, risk management, strategy, interim management, digital transformation, training, and sustainability (CSRD/decarbonization) services. Engagements are partner-led and tailored to enterprise and mid-market clients, organized across three pillars: Finance & Compliance, Transformations, and Durability, with an integrated legal practice.

Product overview

Altermès is a multidisciplinary consulting firm offering a comprehensive portfolio of advisory services organized into three main pillars: Finance & Compliance (accounting, audit, financial valuation, wealth management, treasury, risk management), Transformations (strategy, interim management, digital transformation, training), and Durability (sustainability). The firm also provides integrated legal services. Services are delivered by expert partners and directors, with no SaaS platform or technology product component. The company positions itself as an innovative, agile, and pragmatic approach to enterprise challenges.

Differentiator

Problem solved

Functional benefit

Products and services

• Expertise Comptable (Accounting Services)
• Audit - Commissariat aux comptes Statutory audit and certification services that protect shareholder and partner interests through audit missions.
• Evaluation et expertise financière Financial valuation and expertise services to evaluate companies and their brands for transaction, reporting, or strategic purposes.
• Ingénierie et conseil patrimonial Wealth engineering and advisory services to organize, develop, and protect client assets with independent trusted advice, for business owners and high-net-worth individuals.
• Trésorerie (Treasury Management)
• Gestion des risques (Risk Management) Risk management services including process expertise, risk mapping, forensic analysis, internal audit and control, and control digitalization.
• Stratégie et organisations (Strategy and Organization Consulting) Strategy and organization consulting from strategy definition to execution of transformation projects, supporting client teams through organizational change.
• Management de transition et appui opérationnel (Interim Management) Interim management and operational support that provides competencies for projects sourced from internal teams or qualified independent contractors.
• Transformation digitale (Digital Transformation) Digital transformation services that accelerate the digital transformation of finance departments and related functions.
• Formation (Training) Training services delivered by expert partners and directors to boost team competencies in finance, compliance, and transformation topics.
• Avocats (Legal Services) Legal services providing a global, operational, and cross-cutting approach, drawing on experience from major law firms and international groups, including tax law (avocat fiscaliste).
• Durabilité (Sustainability and CSR Advisory) Sustainability advisory addressing social and environmental challenges, including CSRD compliance support, decarbonization trajectory design, and ESG reporting.

Named customers4 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

Recent moves5 records

Expansion highlights5 records

Broad incumbents

• Deloitte France: Big 4 advisory firm with deep French presence across audit, consulting, financial advisory, and risk. Provides the same integrated finance + transformation + sustainability offering as Altermès at greater scale.
• EY France: Big 4 firm operating across France with full-service audit, consulting, strategy, and transformation capabilities. Larger incumbent with overlapping service portfolio.
• PwC France: Big 4 firm with comprehensive French audit, tax, and advisory practice. Competes for the same enterprise and mid-market transformation/CSRD engagements as Altermès.
• KPMG France: Big 4 firm with extensive French practice delivering audit, tax, advisory, and consulting to enterprise and mid-market clients. Broader incumbent competing with Altermès for transformation and compliance mandates.

Direct peers

• In Extenso: French multidisciplinary firm (part of Deloitte) focused on accounting, audit, and advisory for SMEs and mid-market. Direct competitor in the French ETI segment Altermès targets.
• Mazars: France-origin international audit, tax, and advisory firm serving mid-market and enterprise clients with integrated multidisciplinary services. Direct competitor to Altermès across audit, accounting, consulting, and transformation.
• Fiducial: Large French professional services firm providing accounting, legal, audit, and advisory services to SMEs and mid-market. Closely comparable in multidisciplinary service delivery and French mid-market focus.
• BDO France: Global mid-tier audit, tax, and advisory network with a substantial French practice targeting ETIs and mid-market companies. Overlaps directly with Altermès on accounting, audit, and consulting services.
• Grant Thornton France: Mid-tier audit and advisory firm operating across France with focus on mid-sized enterprises (ETIs). Competes directly with Altermès on audit, accounting, and transformation engagements.
• Baker Tilly France: French mid-tier accounting and advisory firm serving mid-market clients with audit, consulting, and transformation services. Directly comparable in scale and service breadth to Altermès.

Market position

Strengths5 records

Weaknesses4 records

Competitive moat3 records

Key risks5 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/@altermes3320
• LinkedInlinkedin.com/company/alterm%C3%A8s

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 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 Altermès