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Founding Partner: Nathalie Dreyfus
Quick facts
# Partners

2

# Other qualified practitioners

5

# Total number of lawyers

20

# Practitioners (worldwide)

20, supported by a network of around 250 specialised IP lawyers in 90 countries

Languages

French, English, Chinese, Spanish

Network memberships

INTA, ECTA, MARQUES, APRAM, AIPPI, PTMG, UNION-IP, AFDIT, Cyberlex, CNCEJ, Institut Art & Droit

Key practice areas
Trade mark
Patent
Trade mark prosecution - law firms
Trusted Talent
Firm overview
Founded in Paris in 2004 by Nathalie Dreyfus, Dreyfus & associés is an IP boutique dedicated to the protection, enforcement and valuation of trade marks, designs, copyright and domain names, with a strong focus on the digital economy. The firm combines the know-how of French and European Trade Mark Attorneys with the perspective of a court-appointed expert, giving clients a realistic view of how disputes are assessed by judges and arbitrators.

The firm advises start-ups, SMEs and multinational groups across the full life cycle of their intangible assets: clearance searches, filing strategies in France, the EU and worldwide, portfolio management, oppositions and cancellation actions before the INPI and the EUIPO, anti-counterfeiting and unfair competition, and the negotiation of licences, assignments and coexistence agreements.

Dreyfus & associés is particularly recognised for online brand enforcement: domain name recovery (UDRP, URS, SYRELI), cybersquatting, phishing, marketplace and social media takedowns, as well as emerging issues raised by Web 3.0, NFTs and artificial intelligence.

The firm also has a niche practice in wine and spirits, geographical indications and plant variety rights.

IP valuation and strategic IP audits form a distinctive part of the practice, drawing on Nathalie Dreyfus's appointment as expert before the French Supreme Court and the Paris Court of Appeal.

With more than 9,000 IP matters handled and a network of around 250 specialised IP lawyers covering 90 countries, the firm acts as a single point of contact for international portfolios and as a trusted French and EU correspondent for foreign firms.

Clients benefit from proprietary tools, including the Dreyfus IPweb® client platform and AI-assisted trade mark similarity analysis.
Key practice areas

  • Copyright
  • Copyright & related rights
  • Designs
  • Intellectual property
  • Intellectual property (contentious)
  • Intellectual property (prosecution)
  • Trade mark
  • Trade mark (contentious)
  • Trade mark (prosecution)
  • For more information click here
Sector expertise

  • Advertising
  • Aerospace
  • Agriculture
  • Artificial intelligence
  • Arts
  • Aviation
  • Banking
  • Biotechnology
  • Chemical
  • Computer technology & services
  • Consumer goods and services
  • E-commerce
  • Electronics
  • Energy
  • Fashion & luxury goods
  • Film
  • Financial services
  • Fisheries and aquaculture
  • Food and beverage
  • Furniture
  • Gaming
  • Healthcare
  • Hospitality & leisure
  • Industrials
  • Insurance
  • Internet
  • Life sciences
  • Media
  • Optics & photonics
  • Professional services
  • Real estate
  • Retail
  • Universities & research
  • For more information click here
Address:
78 Avenue Raymond Poincaré
75116 Paris
France
Tel:+33 1 44 70 07 04 Email:Contact Us Web Address:https://www.dreyfus.fr
2026 Edition
Trade mark prosecution - law firms
16 firms ranked
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Tier 1

Baker McKenzie
4 practice areas
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Bird & Bird
6 practice areas
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Fieldfisher
5 practice areas
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Tier 2

Hogan Lovells Cadwalader
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Simmons & Simmons
6 practice areas
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Taylor Wessing
10 practice areas
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Tier 3

ADVANT Altana
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Herald
4 practice areas
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Dreyfus & associés
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Fiducial Legal By Lamy
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Gilbey Legal
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Axipiter
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Stephenson Harwood
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Overview

Dreyfus is a boutique IP firm led by IP star Nathalie Dreyfus, who specialises in soft IP matters. She is supported by Emmanuel Harrar. Read more about the firm here.

Testimonials

2025

"They react quickly and provide reliable advice."

"They have good rates and provide good services."

"They are quick to report."

"Dreyfus has great professionals and [takes a] personal approach. They handle cases with care and with a tailor-made approach. They also deliver on what they promise."

"What sets them apart is their ability to combine deep legal knowledge with a proactive, client-focused approach, anticipating potential issues and addressing them before they arise.

"Their strong global network of IP specialists ensures that they can handle even the most complex matters with efficiency and precision, making them the ideal partner for our needs."

"Dreyfus provides quality services and a fast response. It is a partner you can trust."

"They are efficient and prompt, and the advice is well suited for our clients."

"Professionalism with a personal approach. You are not a number or a case."

"What we appreciate most about Dreyfus is their comprehensive and personalised approach to intellectual property management.

"Working with them has been a very positive experience because their team not only has deep knowledge across various areas of IP law but also takes the time to understand our specific needs and proactively address potential issues.

"We value their collaborative approach, leveraging their global network of experts to always find the best solution. Their commitment to innovation, use of advanced technology, and focus on diversity are also key factors that make us continue to trust them. Without a doubt, their way of working gives us confidence that our legal needs are in good hands."

"Their team has deep expertise in trademark registration and prosecution, which gave us confidence in their ability to handle our needs efficiently. Additionally, their personalised approach and clear communication made the process smoother, and their understanding of international IP law was crucial for our global strategy.

"We felt they truly understood our business and provided practical, strategic advice."

"The firm dealt with these matters very competently and professionally, achieving positive results."

"They always reply promptly, and their advice is always appropriate."

"They provide high-quality services."

"The team is highly knowledgeable and stays ahead of potential issues, offering clear and practical advice at every step. They are always responsive and provide tailored solutions that align with our business objectives."

"[A] hands-on, professional approach and ability to work in a highly professional [manner]."

"They are always eager to serve their clients and do so in a remarkable way."

Linked Reviews
Trade mark

Case studies show trade mark protection and disputes advice work for clients such as Safra Sarasin and Nanobiotix.

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