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Interim Legal AG

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Swiss alternative legal service provider offering on-demand, flexible legal and compliance talent to in-house legal departments.

Last updated September 26, 2026

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Overview

Interim Legal AG is a Swiss alternative legal service provider (ALSP) headquartered in Zurich. Founded in November 2020 by co-founders Sebastian Fanai-Danesh and Marc Widmer, the firm was launched to help legal teams in Switzerland meet their challenges through a flexible and agile talent solution, while giving legal professionals a self-directed career option that lets them choose how and where they work. The company positions itself as "a modern approach to legal services in Switzerland," built on the idea that in-house legal and compliance departments increasingly need specialist capacity on demand rather than only permanent headcount. Interim Legal's core offering is on-demand legal support drawn from a network of over 4,500 specialists based in Switzerland. The firm markets several solution types to corporate legal departments: future-proofing the legal function, meeting legal coverage needs through flexible talent, incorporating new capabilities cost-efficiently, building capacity for changing business demands, and assembling specialist teams for commercial and regulatory projects across a project's lifecycle. Rather than acting as a traditional law firm that delivers legal advice under its own name, Interim Legal matches clients with vetted independent lawyers and legal professionals, including corporate and M&A counsel, on a temporary or project basis. The company serves in-house legal and compliance teams at Swiss and internationally operating organizations. Published client testimonials include André Büttner, Senior Legal Counsel at Generali, who said the ability of Interim Legal to access specialized legal talent tailored to specific needs is unique within the Swiss market; Harald Zeiter, Group General Counsel at Capital Dynamics, who said the firm's ability to identify specialized legal talent on demand made his team rethink its legal services provider model; and Mel Mallam, who noted a fast and tailored response. Case studies describe engagements such as providing specialized corporate legal and M&A support to the global asset manager Capital Dynamics, and supplying specialist M&A and corporate counsel to a global industrials group operating across numerous jurisdictions. Interim Legal is headquartered at Löwenstrasse 25, 8001 Zurich, with an additional address at Churerstrasse 135, 8808 Pfäffikon. The firm describes itself as established with the high standards of a true partnership and organizes its culture around four core values: equality, accountability, teamwork, and creativity. Its leadership combines legal services and recruitment experience with legal practice and business leadership. As a private Swiss company, it operates primarily in the Swiss market while serving clients whose legal needs span multiple jurisdictions.

History

Interim Legal AG was established in November 2020 by co-founders Sebastian Fanai-Danesh and Marc Widmer, and was launched in Zurich, Switzerland. The founders set out to help legal teams in Switzerland meet their respective challenges by offering a flexible and agile talent solution, and to give legal professionals a self-directed career option that allows them to choose how and where they work. The firm was conceived with what it describes as the high standards of a true partnership. From its base in Zurich, Interim Legal built a network of specialists that it says numbers over 4,500 professionals based in Switzerland, and it developed a service model centered on on-demand legal and compliance support for in-house departments. Its leadership combines legal services and recruitment experience with legal practice and business leadership; Sebastian Fanai-Danesh brought a background in legal services and recruitment, while Marc Widmer is described as a seasoned lawyer and business leader and the son of a pioneer in the flexible staffing business. By the early 2020s the firm was publishing client case studies and testimonials. A case study dated March 2023 described how Interim Legal supported Capital Dynamics, an independent global asset management firm, with specialized corporate legal and M&A skills when the client had limited internal legal staff available. Another case study described providing specialist M&A and corporate counsel to a global industrials group operating across numerous jurisdictions, matching a single evidence-led candidate to a defined transactional pipeline rather than presenting a broad shortlist. Client testimonials from Generali, Capital Dynamics and others highlighted the firm's ability to access specialized legal talent on demand and to respond quickly and in a tailored way. The company operates from Löwenstrasse 25, 8001 Zurich, with an additional address at Churerstrasse 135, 8808 Pfäffikon. It describes its culture through four core values — equality, accountability, teamwork and creativity — and continues to position itself as a modern approach to legal services in Switzerland, serving in-house legal and compliance teams with flexible, project-based and interim talent.

  • 2023

    Published a case study (dated 03/30/2023) on specialized corporate legal support for Capital Dynamics.

  • 2020

    Interim Legal established in November 2020 by co-founders Sebastian Fanai-Danesh and Marc Widmer.

  • 2020

    Launched in Zurich, Switzerland.

Products and positioning

A modern, flexible alternative to traditional legal services, providing on-demand specialist legal and compliance talent to in-house legal departments in Switzerland.

  • On-demand legal talent solutions

    Flexible legal talent drawn from a network of over 4,500 specialists based in Switzerland, provided to in-house legal and compliance teams.

  • Commercial and regulatory project support

    Building a team of specialists to accompany a legal team across a project's lifecycle.

  • Specialist M&A and corporate counsel

    Providing experienced M&A and corporate counsel able to operate independently on due diligence, deal structuring and transaction agreements.

Sources5 sources

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