Keijzer & Cie is an independent law firm in Amsterdam, specialising in (European) corporate law, financial law and ESG law.

Clear.
Clear contracts set out business relationships and financial interests, reduce risk and prevent disputes. We put mutual expectations into words everyone understands, so that processes run smoothly.
Decisive.
With creativity and decisiveness we look at matters from a slightly different angle. That gives practical, clear answers and a wider view of your question, so you can move on with your business quickly and with confidence.
Independent.
As an independent niche firm we focus on your interests and on the best result. Our personal, practical way of working delivers solutions you can apply in your organisation straight away.

Contact us Our expertise

Expertise

We work with entrepreneurs, founders, start-ups and scale-ups, family businesses, pension funds, service providers, investment managers, investors, financiers and private equity firms.

  • Corporate law

    Legal transaction management, advice and the drafting and negotiation of legal documentation. We combine expertise and decisiveness with a sense of reality to get the best possible result for your business.

  • Financial law

    Drafting and negotiating financial documentation and (strategic) advice, built on an in-depth knowledge of the complex and evolving European financial regulatory landscape.

  • ESG law

    We help organisations comply with fast-changing EU and national ESG legislation: impact analyses, ESG policy and business processes, governance, disclosures, due diligence and contracts throughout the value chain.

  • Contracts

    Clear commercial contracts are fundamental to your business success. We advise on, draft and negotiate contracts, with an eye for the legal, financial and commercial interests involved and for future risks.

  • Disputes

    Clear contracts and accurate, non-misleading information prevent disputes, including claims of greenwashing. When a dispute arises, we analyse it and give clear, pragmatic advice on strategy and the options for proceedings.

  • Green Swans

    Under our label Green Swans®, a network of dedicated consultants supports clients with the sustainability transition, temporarily or on a structural basis.

Team

Our lawyers gained their expertise at leading international law firms and in senior in-house roles at financial institutions. Clients trust our hands-on, pragmatic approach to complex issues.

Green Swans

Under our label Green Swans®, we offer consultancy services through a network of dedicated consultants. Green Swans helps clients understand and implement the legal frameworks of the European and global sustainability transition.

Visit greenswans.eu

Publications

  1. 2026

    Environmental, Social & Governance Law 2026: Netherlands

    International Comparative Legal Guides, sixth edition, chapter 18

    Marc Keijzer and Nicole Batist

  2. 2023

    ESG-impact in private markets

    Financial Investigator, no. 5, 2023

    Nicole Batist, Marc Keijzer and John van Scheijndel