Accounting, social and financial expertise
From bookkeeping to consolidated reporting, expert and committed teams to make your financial information reliable and free up your management time.
Missions to free up your accounting and financial management
The accounting and financial function is at the heart of a company's strategic decisions. It must be reliable, compliant, responsive, and free managers and financial departments from the operational burden so that they can focus on their core business. Whether you are a growing SME, an international group or a structure in transformation, our multidisciplinary teams bring you the expected level of expertise and commitment, across the entire accounting, social, fiscal and legal spectrum.
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Ensure the accuracy and sincerity of accounts, whether annual, consolidated or in accordance with international standards, to meet legal, regulatory and stakeholder requirements.
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Rigorously manage fiscal and social obligations, anticipate regulatory changes and secure the organization in the face of administrative controls.
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Optimize the organization of the financial function, digitize processes and outsource all or some of the tasks with low added value to concentrate resources on management
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Structure the accounting and financial function as the company develops, establishes itself abroad or integrates new entities within its scope of consolidation.
Expertise amplified by the mobilization of multiple disciplines
Our expert teams provide permanent advice or occasional support, depending on your needs. With more than 1,000 supported clients and a multidisciplinary team combining accountants, lawyers and payroll specialists, we cover all the accounting, social and financial needs of SMEs, ETIs and international groups.
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From bookkeeping to the preparation of annual accounts, our teams ensure the continuity and reliability of your financial information, with fiscal and organizational advice integrated into each mission.
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To ensure fair, consistent and compliant accounts, and to produce transparent and controlled consolidation.
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Complete outsourcing of the Finance-Accounting function for fast-growing or transforming structures: optimized processes, reference digital tools, a dedicated team of 40 people and permanent access to management data.
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A single point of contact for foreign companies setting up in France: choice of legal structure, multi-reference accounting and reporting (IFRS, US GAAP), taxation, payroll and social management, with the relay of the Nexia network in 119 countries.
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Partial or total delegation of payroll and social management, carried out by 50 specialists and two social law lawyers, for secure, confidential management in accordance with your collective agreement.
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To ensure fair, consistent and compliant accounts, and to produce transparent and controlled consolidation.
What our teams can do for you
Beyond bookkeeping, accounting expertise provides you with reliable information, secures your compliance and strengthens your financial management.
By delegating accounting and social production to our teams, your managers and financial departments refocus on value-added decisions.
Fair accounts, produced on time, that meet your legal obligations and reinforce the credibility of your organization with your partners and funders.
Scalable support that adapts to the size, structure and ambitions of your organization, in France and internationally.
Accountants, lawyers, payroll specialists and IT consultants: a complete team that can be mobilized according to your challenges, without having to multiply the number of contacts.
Tailor-made support for flawless management
From small businesses to international groups, Nexia S&A operates throughout the accounting and tax cycle with, for each mission, direct access to a partner and a global vision that goes well beyond compliance.
What we appreciate at Nexia S&A is the reliability and stability of their process. Every month, they produce analyses and dashboards that inform our decisions. Today, it is an essential partner, both accounting and a real knowledge resource.
Our useful resources
Our content helps you better understand your challenges, anticipate changes and discover what's behind the scenes at Nexia.
Our expertise at the service of your ambitions
Your business is evolving, transforming, developing. At every stage, we help you address key challenges with pragmatism and commitment.
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Let's discuss your challenges in concrete terms
Whether it is to structure your growth, make your data reliable or to succeed in a strategic operation, one of our partners answers you personally and without commitment.
Do you have questions?
Here is what our customers ask us most often before starting a mission.
We work mainly with ETIs, growing SMEs, family groups or subsidiaries of international players. Our teams are used to complex and multi-structured environments.
We have had 5 offices located in Île-de-France and one in Lyon since the beginning of 2026, but our membership in the international Nexia network allows us to support you in more than 120 countries.
Nexia is a global network of independent firms operating in more than 120 countries. We share common quality standards, which allows us to offer global support while maintaining a close relationship.
An associate contacts you again to understand your challenges, without commitment. We analyze your needs in order to offer personalized support.
Audit, accounting expertise, financial and operational advice, taxation and company law. Our services are designed to cover all the challenges of financial departments.
Yes, we work on recurring missions as well as on targeted projects: strategic operations, reorganization, flash diagnosis...