Nexia S&A
Nexia S&A is a French audit, accounting, tax, and advisory firm serving mid-sized enterprises (ETI), SMEs, and foreign subsidiaries in France, with 640+ professionals, €75.1M FY 2024-2025 revenue, and international reach through the Nexia network spanning 118+ countries.
- Company typePrivate
- Founded2023
- HeadquartersParis, France
- Headcount501–1,000
- GTM typeB2B
- OfferingServices
What Nexia S&A does
Nexia S&A is an independent French audit, accounting, tax, and advisory firm created in 2023 through the merger of Aca Nexia and Sefico Nexia, headquartered in Paris with seven offices across the Île-de-France region plus Lyon (opened January 2026) and additional offices in Montesson and Argenteuil. The firm employs 640+ professionals, including 65 partners, and serves approximately 5,000 clients—primarily mid-sized French enterprises (ETI) and SMEs, alongside foreign subsidiaries operating in France. Service lines comprise Audit (financial, IT, sustainability/ESG, contribution and fusion), Expertise (accounting, consolidation, BPO Finance, International Business Services, payroll, reporting), Financial Advisory (transaction services, M&A, restructuring), Operational Advisory (outsourcing, transformation, risk management, sustainability consulting), and Tax & Legal (including the Nexia S&A Avocats legal division), supplemented by a client collaboration portal called Le Hub Nexia S&A.
The firm monetizes through project-based and recurring professional service engagements quoted per mandate, with relationship-driven repeat business across audit cycles, ongoing accounting production, payroll, and advisory mandates. Go-to-market emphasizes direct partner-led engagement with a 48-hour response guarantee, supported by content marketing, webinars, publications (including the Inside Nexia S&A magazine), and PR. Nexia S&A is a member firm of the Nexia International network, which spans 118+ countries, 497 offices, and 23,578 professionals with combined revenue of $2.7B in 2025, granting the firm international reach for cross-border client mandates. The firm is licensed as a member of the Ordre des experts comptable de Paris–Île-de-France and as Commissaire aux comptes before the Paris Court of Appeal.
Recent strategy reflects a roll-up model: two mergers within roughly 60 days (Maxime Mazuy team for restructuring in January 2026, Atriom for consolidation and valuation in March 2026), geographic expansion into Lyon, the appointment of five new Associate Directors in September 2025, and the adoption of a new governance structure in February 2026. Revenue reached €75.1M in FY 2024-2025 (up 9.6% YoY) on top of €68.5M in FY 2024 (up 11.7%). AI capability is positioned as an internal productivity and audit-enhancement layer via data mining and gradual deployment of AI agents; the firm is not a technology company.
Nexia S&A firmographics
Firmographics- Name
- Nexia S&A
- Legal name
- Nexia S&A
- Website
- https://nexia-sa.fr
- Company type
- Private
- Founded year
- 2023
- Operating status
- Operating
- Headcount range
- 501–1,000 employees
- Short description
- Nexia S&A is a French audit, accounting, tax, and advisory firm serving mid-sized enterprises (ETI), SMEs, and foreign subsidiaries in France, with 640+ professionals, €75.1M FY 2024-2025 revenue, and international reach through the Nexia network spanning 118+ countries.
- Ownership category
- akta.pro rank
Nexia S&A industry classification
Industry- Product category
- Accounting and Advisory Services
- NAICS
- Professional, Scientific, and Technical Services (54), Other Accounting Services (541219), All Other Legal Services (541199)
- SIC
- Services-Engineering, Accounting, Research, Management (8700), Services-Legal Services (8111)
- akta.pro primary industry
- Financial Reporting & Technical Accounting Advisory (GAAP/IFRS) (BPAHABAF)
- akta.pro secondary industries
- Intercompany & Consolidation Support (Eliminations, Group Reporting Support) (BPAAAGAG), Industry-Specialist / Sector-Focused M&A Advisory (FSAEAGAJ)
Keywords
Where Nexia S&A is headquartered
LocationHeadquarters
- HQ city
- Paris
- HQ country
- France
- HQ region
- Europe
Offices7 records
Markets served
Nexia S&A business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Operations, Technology or R&D, Marketing or Sales, Infrastructure
Revenue model
- Professional Services Revenue: Nexia S&A generates revenue through professional services including audit engagements (financial, IT, sustainability), accounting and bookkeeping services, consulting (operational, financial, transformation), tax advisory, legal services, and transaction services (M&A, due diligence). Revenue is project-based and relationship-driven with recurring engagements for existing clients.
Go-to-market motion1 record
Distribution channels3 records
Marketing channels7 records
Nexia S&A product offering
Product offeringCore offering
Nexia S&A is a French audit, consulting, and accounting group providing five integrated service lines — Audit, Expertise (Accounting), Financial Advisory, Operational Advisory, and Tax & Legal — to mid-sized enterprises (ETIs) and SMEs. The firm combines statutory audit, accounting/revision, transaction services (M&A, due diligence, restructuring), and ESG/CSRD sustainability advisory with international reach through the Nexia International network spanning 118+ countries.
Product overview
Nexia S&A is a unified professional services firm offering an integrated portfolio of audit, accounting expertise, financial advisory, operational advisory, and tax & legal services for ETIs and SMEs. The five service lines (Audit, Expertise, Financial Advisory, Operational Advisory, Tax & Legal) operate as interconnected divisions supported by specialized modules including International Business Services for cross-border operations, Sustainability Services for ESG/CSRD compliance, and a client collaboration portal (Le Hub). The firm operates primarily in France with international reach through the Nexia network.
Differentiator
Problem solved
Functional benefit
Products and services
- Audit Independent audit services covering financial audit, IT audit, sustainability/ESG audit (CSRD), and merger/contribution expertise for ETIs and SMEs requiring statutory audit and credibility for financial statements.
- Expertise (Accounting) Accounting services including revision, consolidation, BPO Finance-Accounting, International Business Services (IBS), payroll and social management, and production and reporting for growing SMEs and subsidiaries of international groups in France.
- Financial Advisory Strategic financial advisory services covering transaction services (acquisition audits, financial due diligence for €1M-€300M deals), M&A advisory, and restructuring services for directors, investors, and shareholders.
- Operational Advisory Operational transformation services including outsourcing, operational support, transformation consulting, risk management, and sustainability/ESG consulting to improve organizational efficiency and performance.
- Tax & Legal Tax and legal advisory services delivered through Nexia S&A Avocats and the Legal Department, covering fiscal optimization, legal compliance, tax practice, and M&A-related legal support for enterprises and family groups.
- Le Hub Nexia S&A Secure client collaboration portal providing existing Nexia S&A clients with access to documents, reporting, and communication tools supporting the engagement delivery.
Quantifiable outcome
- 9.6% revenue growth for FY 2024-2025 reaching €75.1M
- +2 more outcomes
Companies that use Nexia S&A
Customer profileNamed customers10 records
Segments5 records
Ideal customer profiles5 records
Nexia S&A technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Integration4 records
AI capability3 records
Feature2 records
Nexia S&A partnerships and signals
Strategic signalPartnerships
Six partnerships are on record, tiered minor, strategic, core and major.
- Lefebvre DallozminorCaroline Bailly, Sustainability Director at Nexia S&A, authored a white paper on sustainability reporting for Lefebvre Dalloz, covering CSRD, green taxonomy, and VSME standards.
- UN Global CompactstrategicNexia S&A reaffirms its support for the Ten Principles of the United Nations Global Compact covering Human Rights, Labour Standards, Environmental Protection, and Anti-Corruption.
- LeDoTankminorPartnership with LeDoTank for the 'Lu pour Vous' (Read for You) publication series, with 57th edition covering topics like 'Les rythmes du labeur' analyzing work time history.
- AtriomcoreNexia S&A announced merger with Atriom, a leading consolidation and valuation firm, strengthening expertise in consolidation, valuation, and affirming ambition as a leading mid-market player. Atriom operates as a specialized entity under Nexia S&A.
- Maxime MazuymajorNexia S&A established presence in Lyon through partnership with Maxime Mazuy and team, marking deployment of restructuring activity at national level and strengthening transaction services in Auvergne-Rhône-Alpes region.
- Nexia InternationalcoreNexia S&A is a member firm of Nexia International, a leading worldwide network of independent accounting and consulting firms providing audit, accountancy, tax, and advisory services. The network spans 497 offices across 118+ countries with 23,578 professionals and combined revenue of $2.7B in 2025.
Scale indicators10 records
Recent moves8 records
Expansion highlights5 records
Nexia S&A competitors and assessment
Company assessmentDirect peers
- BDO France: BDO France is a mid-market audit, accounting, tax, and advisory firm with a similar positioning to Nexia S&A, serving ETIs, SMEs, and family groups across France with deep sector specializations. BDO is a global top-10 network, comparable in scale and service mix to Nexia's positioning within the Nexia International network.
- RSM France: RSM is a global mid-market accounting network with a French presence focused on audit, tax, and consulting for mid-sized companies. RSM France competes with Nexia S&A for similar mid-market and cross-border mandates, with comparable scale and service breadth.
- Grant Thornton France: Grant Thornton is one of the leading mid-market professional services networks with a substantial French practice, offering audit, tax, and advisory services to mid-sized enterprises. It competes head-to-head with Nexia S&A for ETI and family group mandates in France.
- Forvis Mazars: Forvis Mazars is a global top-10 audit and advisory network formed from the merger of Mazars and FORVIS, with a strong French franchise serving mid-market, large-cap, and international clients. It is a direct competitor in audit, transaction services, and advisory, though at a larger overall scale.
- Alvarez & Marsal: Alvarez & Marsal is a global professional services firm specializing in turnaround, restructuring, and transaction advisory. It is a direct competitor to Nexia S&A's Financial Advisory and restructuring practices, especially the Lyon-based Mazuy team integration.
- In Extenso: In Extenso is a French network of chartered accountants and auditors serving SMEs, ETIs, and associations across France. It is a domestic competitor with comparable service mix (audit, accounting, advisory) and similar mid-market focus, though more oriented to SMEs than the ETI segment Nexia S&A targets.
- Crowe France: Crowe is a global top-10 accounting network with a French member firm offering audit, tax, and advisory services to mid-market clients. Crowe France directly competes with Nexia S&A for similar mandates in audit, transaction services, and consulting.
- Baker Tilly France: Baker Tilly is a global mid-market accounting network with a French practice offering audit, accounting, tax, and advisory services to SMEs and mid-sized groups. It competes with Nexia S&A for similar ETI/SME mandates in France, with a comparable partnership-led delivery model.
Broad incumbents
- KPMG France: KPMG is a Big4 firm with a substantial French practice offering audit, tax, and advisory services across all client segments. While it serves large-cap and multi-nationals primarily, it increasingly competes with Nexia S&A in the ETI segment, and serves as a benchmark for talent and capability.
Emerging players
- WTS Global: WTS Global is an international tax advisory network with member firms specializing in corporate and international tax. It is comparable to the Tax & Legal practice of Nexia S&A (including Nexia S&A Avocats) and could be considered an emerging competitor as Nexia expands its tax offering.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks6 records
Key highlights7 records
Customer concentration
Nexia S&A social profiles
Digital presenceNexia S&A compliance and trust
Trust signalCompliance3 records
Nexia S&A financial estimates
Financial estimateRevenue estimate
Valuation estimate
Nexia S&A leadership team
Management profileNumber of profiles
Profiles20 records
Nexia S&A subsidiaries and ownership
Company hierarchySubsidiaries2 records
Nexia S&A funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Nexia S&A M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Nexia S&A
What does Nexia S&A do?
Nexia S&A is a French audit, consulting, and accounting group providing five integrated service lines — Audit, Expertise (Accounting), Financial Advisory, Operational Advisory, and Tax & Legal — to mid-sized enterprises (ETIs) and SMEs. The firm combines statutory audit, accounting/revision, transaction services (M&A, due diligence, restructuring), and ESG/CSRD sustainability advisory with international reach through the Nexia International network spanning 118+ countries.
Is Nexia S&A a public or private company?
Nexia S&A is a private company. It is classified as management employee owned and is currently operating.
When was Nexia S&A founded?
Nexia S&A was founded in 2023. It employs 501 to 1,000 people.
Where is Nexia S&A based?
Nexia S&A is headquartered in Paris, France, in the Europe region.
How does Nexia S&A make money?
One revenue line is on record: professional Services Revenue.
Who are Nexia S&A's main competitors?
Direct peers on record are BDO France, RSM France, Grant Thornton France, Forvis Mazars, Alvarez & Marsal, In Extenso, Crowe France and Baker Tilly France. KPMG France is listed as a broad incumbent. WTS Global is listed as an emerging player.
Does Nexia S&A have an API?
No public API is recorded for Nexia S&A.
What industry is Nexia S&A in?
Nexia S&A's product category is Accounting and Advisory Services. Its primary akta.pro industry code is BPAHABAF, Financial Reporting & Technical Accounting Advisory (GAAP/IFRS), with a secondary code of BPAAAGAG, Intercompany & Consolidation Support (Eliminations, Group Reporting Support). Its NAICS code is 54 and its SIC code is 8700.