Much more than an accounting firm

5.0

16 reviews on trustfolio

Get support from a human, innovative firm that is close to its customers.

Become a customer

Supporting our customers beyond their accounting

Global expertise on business management

We provide personalized advice to optimize your taxation and boost your growth.

collaborateurs de 451f, cabinet d'experts comptables, qui échangent devant un tableau

An advice on financial management

We contribute to improving your business model and financial structure.

Bureaux de 451f, cabinet comptable collaborateur présentant des documents sur un écran

Modern tools, adapted to contemporary challenges

Connect, process, analyze and interpret your data with our innovative tools (bank connectors, expense reports, billing, reminders).

Our
differentiation

The accounting firm for ambitious companies

collaboratrices de 451f, cabinet d'experts comptables, qui travaillent devant un écran d'ordinateur

Streamline our exchanges, manage your business effectively thanks to our performance indicators.

Become a customer

Our
Services

We ensure a 360° 451° mission to our customers in order to support them at all stages of their growth

Accounting outsourcing

Full management of your accounting operations to allow you to focus on your core business.

Accounting assistance

Personalized support and advice for the daily management of your accounts, adapted to your specific needs.

Legal advice

Full support to navigate through all legal procedures, ensuring compliance and peace of mind for your business.

Financial advice and management control

Strategic support to improve financial performance and decision making.

Account revisions

Extensive review of your accounts to ensure their accuracy and compliance with accounting standards.

HR outsourcing

Full management of your HR function to allow you to focus on your core business.

Payroll and social

Complete management of payroll and social obligations, ensuring accuracy and legal compliance.

Reports, situations

Preparation of tailor-made interim financial reports, adapted to the structure of your business.

International accounting

Specialized accounting services to support your international expansion, while respecting global standards and regulations.

Blockchain and cryptocurrencies

Expertise in cutting-edge technologies to integrate blockchain and cryptocurrencies into your financial strategy.

Acquisition audit, financial diagnosis and valuation

Detailed analysis to assess the financial health and value of a target company.

Business plans, financing files

Creation of convincing business plans and preparation of financing files to support your investment projects.

Organization of transfers, transfers and restructuring

Strategic advice for the sale, transfer or restructuring of your business, guaranteeing an optimal and effective transition.

Audit Office

Legal or contractual audit, directly related procedures, audit of contributions or mergers, special offices (AK, BSA, BSPCE, etc.)

OUR HISTORY

Created in 2018, 451F is an accounting firm born from the desire to combine tradition and innovation.

Tradition

The preservation of know-how and knowledge at the foundations of stable and sustainable businesses.

peinture représentant un cabinet d'experts comptables

DISCOVER THE FIRM

Innovation

Web3 is a great way to change this culture and to guarantee our customers ever more efficient services.

illustration de documents qui s'envolent depuis un ordinateur pour montrer la dématérialisation d'un cabinet comptable

Years of existence

Collaborators

451

Customers

sièges des bureaux d'un cabinet d'experts comptables

collaborateurs de 451f qui travaillent dans un open space devant des écrans d'ordinateur

collaboratrices comptables de 451f qui travaillent dans un open space

Salarié d'un cabinet comptable qui échange avec une autre salariée

borne d'arcade dans un cabinet d'experts comptable

chien husky allongé, mascotte d'un cabinet comptable

Alexandre Zuily, fondateur de 451f, cabinet d'experts comptable

OUR PROFILES
OF CUSTOMERS

A personalized approach for each maturity level

Business Creator & Startup

We offer tailor-made support to business creators and startups, by coaching them in the early stages.

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Very small businesses (TPE)

For small businesses, we focus on accounting management, tax compliance, and management consulting.

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SMES & ETI

A chartered accountant where you expect

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Foreign businesses

Local and international expertise, cross-border tax optimization, and ongoing personalized support

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SCI/Holdings, Wealth Management

For real estate companies and holding companies, we provide specialized advice on investment strategy, tax structuring and transfer.

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Web3, Cryptocurrencies

A firm steeped in Fintech culture

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Associations

We understand the unique challenges that associations face and offer tailored support to ensure their financial management, regulatory compliance, and ability to obtain funding.

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“451F has been with us ever since  5 years and masterfully manages all our businesses. Responsiveness is unparalleled and precise financial advice as well as perfectly controlled tax optimization make it the best player in the sector.”

Name Surname

Position, Company name

We like their responsiveness and flexibility, we feel understood and we understand what is going on in our numbers. It is a real support both accounting and administrative. A real relationship of trust has been established with our accountant who allows us to feel that our company is protected and we feel surrounded in terms of management.

pauline

Director and co-founder

Chouchou

451F is the accounting expertise that you are looking for when you are a start-up: tailor-made advice, exceptional responsiveness and a great team. After testing a lot of services, I finally found what I was looking for in a chartered accountant. Thanks:)

Anahi Nguyen

Co-founder

L'habibliotheque

Laying solid foundations for an ambitious business. Efficient, available and proactive, Célie is a partner of choice in the development of our business. She provides us with the right mix between operational and consulting, is involved in her work and does not hesitate to introduce us to potential partners.

Victoire & Adèle

Founders

Pilates Fusion

There is life before and after 451F! Since working with 451F, everything is easier and faster. We have confidence in them, as much for the legal, accounting management and social aspects. We see a real difference compared to before! In fact, we have entrusted him with the management of our new company Chouchou.

Audrey & Lorna

Directors and co-founders

Sept Cinq

A first and foremost human encounter with Celie. what a joy and above all what a peace of mind to be able to focus on my business with peace of mind. In addition to being available, Célie is very attentive and understands the challenges of a startup very quickly and well! It is a pleasure and it gives a boost to talk to him regularly on the phone:)

Aurélia

Founder

Je Suis Bonne

Selecting 451F as my business accounting firm is one of the best decisions I’ve made. As an American living in France and working as an independent consultant, I’ve found 451F to be indispensable in navigating the complexities of the French tax reporting system. They've taken time to understand my unique circumstances and provide expert solutions to meet my needs. 451F has been very reliable with excellent follow-through. I give them my highest recommendation, especially for other English-speaking expats doing business in France.

Reid Jordan

Blue Boomerang Media

The firm is a modern and attentive firm. With them, we have real partners at our side who do not hesitate to devote time to us to answer our needs and questions. They have always given us their expertise. Finally, their fees are clear and respected.

Timothy Jollivet

Creator

Hello Harel

The professional conscience, passion for the profession and the human proximity of the ambitious 451F team were real assets when the gastronomic label “Moulin Vert” was launched. Their availability on a daily basis, as well as their 360° support were a pleasant surprise, reconciling me with the traditional image of the chartered accountant with long mismatched ties. Accounting is no longer a burden but a performance tool.

Benoit Goncalves

President

Société Participative du Moulin Vert

F451 are an excellent accountancy service. The team have helped me with every step of setting up my IT Consultancy in France. They're online accountancy platform is simple and easy to use and they're prices are competitive. They are fluent in English, and very open and friendly. I highly recommend them.

Peter Warde

Rule Architect

I created my company a few months ago: the first, with all the stress and questions that come with it. The Firm, and Célie Gambin in particular, made it possible to answer all my questions. After reassuring me and helping me in the first steps, the firm continues to support me, and I am delighted. The team is human and very professional, I can only recommend this firm to companies looking for serious work and a committed team.

Dominique FAY-KELLER

Founder

Patate

With 451F, I finally found the accounting team that suits me: dynamic, responsive and always looking for the best solution for its client.

Elisa Desbordes-Cisse

President

Akhesa Conseil

Why I chose 451F: For the team with and around Alexandre, for listening, open-mindedness and a good understanding of what a start-up's expectations are, a skill that is never taken for granted, a user-friendly accounting management tool that is user-friendly and fairly easy to use. In conclusion, in 2018 I gave them a start-up, and for 2019 I am going to add 2 additional files. We are delighted to share the same entrepreneurial adventure with 451F.

Olivier Broders

CEO & Co-founder

Isba Distribution

In addition to his accounting expertise, we particularly appreciate the legal, fiscal and general advice provided by Alexandre and his teams. Their level of responsiveness is also remarkable. We warmly recommend them

Bruno Garros

General manager

Robe Lighting France

FAQS

Frequently asked questions

What makes 451F unique?

At 451F, we offer comprehensive 360° support, combining proximity, efficiency, and unparalleled ability to adapt. We guide you through each stage of your growth, with tailor-made advice to boost your success.

What accounting and tax services do you offer?

We take care of bookkeeping, annual balance sheets, and tax returns. We ensure that all your accounting obligations are respected while seeking tax optimizations to reduce your expenses.

How can 451F optimize human resources management?

We manage payroll, employment contracts, and end of contract procedures. Our objective is to offer you a smooth and compliant HR management, while helping you find the best social statuses for your employees.

What does your corporate legal support consist of?

We draft general meetings, transaction protocols, and manage sales of goodwill and securities. We ensure that all your legal transactions are carried out in compliance with the laws in force.

How does 451F help optimize daily performance?

On a daily basis, we seek optimizations to reduce your taxation, improve your social status, and ensure the efficient transmission of your assets. Our mission is to find the best solutions to maximize your financial benefits.

What are your rates?

Each business is unique, so are our rates. We offer tailor-made prices adapted to your maturity, size and problems. Our prices are transparent and flexible according to your evolution.

How do I become a 451F customer?

If you do not already have a chartered accountant, click on “Become a customer” at the bottom of this page. If not, the first step is to check the notice of termination in your current engagement letter before contacting us.

Are you also an auditor?

Yes but chartered accountant or auditors you have to choose ;)

Any other questions?

Talk to us directly.

Contact the team

Join the circle of companies supported in their accounting revolution.

Become a customer

illustration d'une ville de Paris et d'un cabinet comptable avec documents dématerialisés

Supporting our customers beyond their accounting

Global expertise on business management

An advice on financial management

Modern tools, adapted to contemporary challenges

We ensure a 360° 451° mission to our customers in order to support them at all stages of their growth

Created in 2018, 451F is an accounting firm born from the desire to combine tradition and innovation.

A personalized approach for each maturity level

Frequently asked questions

Join the circle of companies supported in their accounting revolution.

Global expertise on business management