id est avocats sàrl > Lausanne, Switzerland > Firm Profile

id est avocats sàrl
P.O. Box 5508

Switzerland > Data privacy and data protection Tier 2

id est avocats sàrl fields a varied data privacy and protection practice, frequently handling issues surrounding the new data protection regulations as well as health data related projects. Michel Jaccard and Alexandre Jotterand jointly lead the practice, with the former’s expertise encompassing a range of innovative technologies, from AI to deeptech, and the latter strengthening the team with his considerable experience in the healthcare, life sciences and public sector industries.

Practice head(s):

Michel Jaccard; Alexandre Jotterand

Work highlights

Switzerland > TMT Tier 2

id est avocats sàrl is ‘highly skilled’ handling the whole life cycle of complex cross-border IT outsourcing, cloud deployment, and integration projects and often collaborates with the corporate, data and IP teams to provide comprehensive advice to their clients. Michel Jaccard, who has extensive expertise in innovative technologies such as AI, digital transformation, deeptech, cloud, and fintech, and Juliette Ancelle, who advises clients on new media and social media issues, both head the team. Alexandre Jotterand specialises in data protection, cybersecurity, data management, and IT, as well as advanced and frontier technologies.

Practice head(s):

Michel Jaccard; Juliette Ancelle

Other key lawyers:


‘The team is available and able to deliver in a quick manner. Our top management appreciates the pragmatic approach of the firm and their capability to deliver easy-reading documents rather than long and complicated ones.’

‘Very accessible lawyers, highly skilled and showing true expertise in their areas of competences.’

‘This practice is a B-corp, forward-looking, and agile. They are very responsive, proactive, and extremely pleasant to work with because they make everything simple.’

‘Stand-out partners: Michel Jaccard and Alexandre Jotterand. They stand out because they manage to make complex issues simple to understand and to tackle, find solutions that are practical and easy to apply and are very accessible.’ 

Work highlights

Switzerland > Employment Tier 3

id est avocats sàrl utilises its IP, IT, and corporate knowledge to support domestic and international companies with setting up incentive plans and reviewing compliance of HR information systems tools. The team is headed by Juliette Ancelle, who has extensive experience assisting entrepreneurs, employees, and employers with negotiation of their work packages, employment disputes, and HR and social law compliance matters.

Practice head(s):

Juliette Ancelle


‘Juliette Ancelle was remarkable in his listening skills and ability to anticipate the opposing party.

Switzerland > Intellectual property Tier 3

id est avocats sàrl‘s intellectual property practice, which is co-led by Juliette Ancelle and Michel Jaccard, advises and represents clients active in a wide range of industries, from traditional banking and luxury industries, to innovative MedTech, fintech, or biotech companies. The team utilises its interdisciplinary expertise by often advising clients on employment matters with IP elements such as protection of newly IP developed brands or disputes over ownership within the employment contract. Other key team members include Alexandre Jotterand and Stéphanie Junod.

Practice head(s):

Juliette Ancelle; Michel Jaccard


‘Uniquely and exceptionally internally coordinated between the legal team and the IP strategies applied with various clients. Further, collective IP knowledge and handling IP-related matters is highly remarkable in contractual work such as complex development agreements.’

‘Stéphanie Junod and Juliette Ancelle are lawyers who are always available to handle complex legal/IP matters. They both understand the ultimate goal of our collaboration and the services required for a particular mandate. Both the detailed orientation coupled with their timely handling is stand out against other law firms.’


Work highlights

Switzerland > Commercial, corporate and M&A Tier 4

With a strong reputation for managing M&A, venture capital and private equity transactions, the ‘business-minded’ team at id est avocats sàrl excels in the tech sphere as well as in relation to ESG issues. The practice, which is capable of advising major corporations and SMEs, is led by Michel Jaccard and Marina Castelli-Joos. Jaccard possesses a wealth of experience in corporate finance and M&A deals, while Castelli-Joos is noted for her capabilities in M&A, financing transactions and general corporate law.

Practice head(s):

Michel Jaccard; Marina Castelli-Joos


‘Very experienced in venture capital.’

‘Marina Castelli-Joos is excellent at communicating clearly, always commits to the timeline she outlines and has a very pragmatic, business-oriented approach while focusing on the critical points.’

‘Michel Jaccard is able to provide holistic advice to his clients (legal, but also technological and business) which makes his advice unique for founders of start-ups.’

‘Business-minded approach and a focus on the bigger picture.’

‘Good cost-to-quality ratio despite being a boutique firm.’

‘They possess technological awareness and always respond quickly.’

‘id est avocats Sàrl is highly specialised in VC tech deals and was our first choice. In addition, their pricing is very competitive and transparent.’

‘Marina Castelli-Joos is highly qualified and has extensive experience in M&A. In addition, she has great communication skills and is very efficient. She immediately identified the key elements of the deal and assisted us in completing it to our full satisfaction.’

Key clients

Swisscom Ventures


VI Partners

Fondation pour l’Innovation et la Technologie

Daphne Technology

Zaphiro Technologies

Hi inov Dentressangle

GRZ Technologies


Spotme Holding

Volumina Medical


Work highlights

  • Assisted L2F, an AI company which develops software products, with its asset sale of medtech compliance engine Giotto Compliance to US medtech service provider RQM+.
  • Assisted SpotMe Holding’s management with the acquisition of a majority stake in the company by Swiss Post.
  • Assisted the shareholders of software development technology provider Triplequote Sàrl in their exit to US-based Gradle Inc.

id est avocats is an independant boutique law firm assisting innovative businesses, successful entrepreneurs, sophisticated investors and global brands navigate today’s complex world.

The firm  is B Corp certified and focuses on sustainability, innovation and deep technologies. It is based in Lausanne, in the heart of the Lake Geneva region, and advises clients throughout Switzerland, placing industry knowledge at the heart of its activity, and leverages technology to serve its clients. The firm enjoys well-established relationships with global brands, prominent entrepreneurs, institutional investors, international groups, leading local SMEs, and many CEOs and owners of businesses that it has assisted in growth, acquisitions, combinations, restructurings, and exits. All teams regularly interact with law firms from across the world and is well connected with multinational practices.

The firm is active in deal making, business support and dispute resolution, including through mediation.

The main areas of practice include:

  • Advanced technologies, AI and innovation
  • Art, media and digital marketing
  • Banking, blockchain and fintech
  • Cleantech and green businesses
  • Corporate finance, acquisitions (M&A) and governance
  • CSR, ESG and sustainability
  • Data protection, privacy and cybersecurity
  • Employment law and HR
  • Intellectual property
  • Outsourcing, DLT and XAAS solutions
  • Venture capital and private equity

The teams are organized along the following lines:
Digital: id est avocats is a pioneering law firm recognized for its top-notch expertise in all matters digital and first-in-class support for complex IT transactions, cybersecurity, AI and data protection issues. Clients range from entertainment industry artists seeking to manage their media presence, to cutting-edge blockchain projects and some of the most promising fintech startups alongside banks and well-established financial institutions.

Biological: The firm takes a keen interest in life sciences, medicine and biology, and supports some of the most promising startup companies in Switzerland as well as their investors, helping Medtech, Biotech, Foodtech and Healthtech companies negotiate business critical deals with industry leaders, customers, suppliers and investors. The teams will ensure control of critical assets throughout R&D agreements.

Physical: Many businesses rely on real estate assets, manufactured goods, complex logistics, distribution channels and industrial processes. Bringing to the table industry specific expertise, the firm regularly assists clients with their operational challenges, green transition and climate change issues and reporting, strategic development and business combinations. The team advises also on ESG, sustainabilty and green contracting, manufacturing and supply chain agreements, and is familiar with the processes required to sell and acquire industrial assets, including environmental impacts.

Department Name Email Telephone
Tech, Corporate, IP Michel Jaccard +41 21 321 08 80
HR, IP, Litigation Juliette Ancelle +41 21 321 08 80
Corporate, Commercial Marina Castelli-Joos +41 21 321 08 80
Tech, IP, Data Alexandre Jotterand +41 21 321 08 80
Photo Name Position Profile
Juliette Ancelle photo Ms Juliette Ancelle Partner. She mainly advises and represents clients in intellectual property and technology…
Marina Castelli-Joos photo Ms Marina Castelli-Joos Partner
Michel Jaccard photo Mr Michel Jaccard Michel Jaccard is a partner and the founder of id est avocats.…
Alexandre Jotterand photo Mr Alexandre Jotterand Partner. Alexandre Jotterand specializes in the management of data and technology.  He…
Number of lawyers : 12

Diversity and inclusion are part of our core values. We actively promote the equitable inclusion of individuals regardless of their gender, sexual orientation, maternity, origin, ethnicity, age, culture, faith or disability status. Our commitment creating and promoting a diverse and inclusive work environment that values and respects every person’s qualities is reflected in our top CSR certification by EcoVadis, an independent rating agency for corporate social responsibility performance.