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Law firm dedicated to start-ups, the digital sector & blockchain

We represent the present the future
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Why Hashtag?

Based in Paris, Hashtag Avocats advises founders, business leaders and legal teams on corporate, tax and technology law.

We prepare equity transactions, negotiate contracts and advise on intellectual property and personal data. If a dispute arises, we assess your options for negotiation and legal proceedings with you. Every situation is different: your documents, priorities and deadlines guide the scope of our work.

Expertise

Areas of expertise

# Start-up law

We help you set up your start-up, prepare the founders’ agreement and negotiate your first contracts.

# Cryptocurrencies

We assess the regulations that apply to your crypto-asset activities and the steps your business needs to take.

# Fundraising

We prepare your funding documents and negotiate the terms on which investors take a stake in your company.

# Blockchain

We assess the legal framework for your blockchain project and draft the agreements needed to operate it.

# Intellectual property law

We help protect your trade marks, software and creative work, arrange licences and enforce your rights.

# Tax

We assess the tax implications of your transactions and help you meet your filing obligations.

# NFT

We review rights in the works linked to your NFTs and draft the relevant sale or licence terms.

# GDPR compliance

We review how you process personal data and prepare the documents, contracts and measures needed for compliance.

# Cybersecurity

We help prepare the legal response to a cyberattack, including notifications, preservation of evidence and legal claims.

# Web 3

We clarify the responsibilities, contracts and regulatory obligations involved in your Web3 project.

# New technologies

We assess rights and liabilities relating to your technology before its launch or deployment.

# ICO

We assess the regulatory framework for your token offering and prepare the documentation for investors.

# Artificial intelligence

We review your use of AI, the data involved and your contracts to identify your company’s legal obligations.

# Mergers & acquisitions

We conduct legal due diligence, negotiate price and warranties, and prepare the documents for your acquisition or sale.

# Insolvency proceedings

We advise businesses in financial difficulty and assist in safeguard, restructuring and judicial liquidation proceedings.

# Tax optimisation for company directors

We assess the tax implications of your remuneration arrangements and the structure of your shareholdings.

# Groups of companies

We advise on group governance, intercompany agreements and financial flows between subsidiaries.

# Tax audit

We prepare your responses to the tax authority and help you challenge a tax reassessment.

# Corporate law

We advise on company formation, shareholder arrangements and changes to share capital or governance.

# Employee equity incentives

We help you choose and implement equity incentive plans for your employees and managers.

# Business assets (fonds de commerce)

We prepare the purchase or sale of your business assets and negotiate the transfer terms.

# Corporate

We prepare shareholder resolutions, changes to articles of association, annual accounts approvals and the related filings.

# Personal tax

We advise on personal income and wealth tax returns and help correct past filings.

# Tax lawyer

We advise on the taxation of your assets, business transactions and moves between countries.

Clients

We mainly assist

Start-ups

You need to launch a product, bring in a co-founder or welcome investors. We address the legal matters that underpin each of these steps.

  • Set clear terms between foundersArticles of association, equity allocation, shareholders’ agreements and departure arrangements.
  • Prepare your funding roundInvestment documents, negotiations with investors and equity incentives for your team.
  • Protect what you developSoftware and trade mark rights, customer contracts and the handling of personal data.
Support for your start-up

Mid-sized companies

An acquisition, new subsidiaries or a reorganisation changes how your business operates. We help you prepare the legal and tax aspects of these developments.

  • Prepare an acquisition or saleLegal due diligence, negotiations on price and warranties, and transaction documents.
  • Organise relationships within the groupHolding structures, subsidiary governance, intercompany agreements and financial flows.
  • Manage changes to your structureGroup reorganisations, changes in share capital and the tax implications of transactions.
Structure your group

SMEs & industrial businesses

Contracts, shareholder decisions and commercial disagreements require your attention every day. We help you identify the risks and put your decisions into legal documents.

  • Clarify commercial commitmentsCustomer and supplier contracts, subcontracting, liability and termination terms.
  • Prepare management decisionsCorporate administration, shareholder relations, directors’ remuneration and personal tax matters.
  • Respond when a relationship breaks downContract review, settlement negotiations and representation in a dispute.
Discuss your business needs

Large groups

An IT deployment or data project involves several teams and suppliers. We support your management and legal teams on the matters that need focused legal attention.

  • Set the terms for technology projectsSaaS, cloud and licensing agreements: supplier obligations, liability and exit arrangements.
  • Organise data complianceGDPR, service providers, international data transfers and the legal framework for AI use.
  • Prepare for incidents and disputesLegal response to cyberattacks, preservation of evidence and disputes with IT providers.
Support for your digital projects
How do I get started?

Our process

  1. Contact

    Contact us for an initial discussion

  2. Defining your needs

    Analysis of your situation and objectives

  3. Fee proposal

    Per matter, hourly or on a subscription (retainer) basis

  4. Start of the engagement

    Tailored support

News

Latest publications

REALISER UNE LEVEE DE FONDS

Running a Fundraising Round: Pre-Money and Post-Money Valuation

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MONNAIE VIRTUELLE : VERS LE RETOUR DU BITCOIN?

Young Innovative Company (JEI) in France: 2026 Tax Regime

Lire l'article

Our Paris law firm

Lawyers for start-ups
and technology businesses

Setting up a company, raising capital or selling software involves legal decisions. Hashtag Avocats helps you understand their implications and prepare the documents you need.

Starting and funding your business

Looking for a start-up lawyer in Paris? We prepare your articles of association and shareholders’ agreement, taking account of the equity split and each founder’s role.

When you raise funds, we review investors’ proposed terms and negotiate the transaction documents. We also advise on acquisitions, business sales and their tax implications.

Legal support for products and contracts

Software, platforms and blockchain projects raise questions about ownership, liability and compliance. We draft and negotiate your IT contracts and review the intellectual property rights your business relies on.

Our work includes GDPR compliance and assessing the legal framework for your blockchain activities. If a contract or a relationship between shareholders breaks down, we help negotiate a settlement or represent you in litigation.

Discuss your project

Contact and directions

Have a question, a project to discuss or an appointment to arrange? Get in touch with our Paris office.

Hashtag Avocats · Paris 8th arrondissement

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01 85 73 56 66