bronzeJohn is a bronze member
Exclusive IR Global advisor for Crypto and Digital Asset Advisory and Tech-Media-Telecoms in Sweden since 2022

John Tengström


+46 70-932 14 82


Since 1997, John has worked as an advisor to company builders in various forms. With a passionate commitment to business and experience from law, business development and technology. his special focus is on corporate issues, transactions, agreements and compliance. John combine legal skills and 25 year’s experience together with deep understanding and knowledge in the technology forefront areas such as blockchain, NFT, Artificial Intelligence and Machine Learning.  John is always happy to discuss how business models can be reshaped in the light of new technology and what opportunities may exist in the regulatory conditions.  Examples of his project experience are:


  • International business start-up
  • International M&A within technology and fintech
  • Compliance within crypto currency trading and other blockchain related technology
  • M&A – NFT investments portfolios
  • International legal project management Sweden, Norway, Finland, Holland, Germany, United Kingdom and USA.
  • Legal standards for Systems development within transaction and payment solutions
  • Concept development based on unique infrastructure for electronic signatures, cryptography and secure Internet communication
  • IPO processes for technology companies
  • Intellectual property strategy for IT companies
  • Compliance – Data Protection, banking and finance (PSD, PSD2, MiFID, MiFID II, GDPR)





Read more



Astra Law Firm has a young and dynamic team of lawyers which are chosen among the graduates of Sweden’s leading universities. As Astra Law Firm, we provide a high quality service to our clients in various fields. We know that in order to provide a preventive and reparative legal service at the highest standard, being an expert in our field, constantly doing research, giving the necessary importance to details and to the needs of our clients while being fast at the same time are indispensable elements of our business. In this respect, we offer a fast, accurate and economical legal service to our clients with a team of experts, without compromising the elements of accuracy, honesty, loyalty, reliability and professionalism.As Astra Law Firm, we take care to find creative solutions to the commercial needs of our clients and to offer the necessary legal services and consultancy specific to each event and according to the needs of our clients. In this way, we believe that we can create a more effective and beneficial result.


Read more

Exclusive IR Global advisor for Crypto and Digital Asset Advisory and Tech-Media-Telecoms in Sweden

Drottninggatan 98 Stockholm 111 60


  • Ulrika Greghammer
    Mergers & Acquisitions in Sweden

    Ulrika Greghammer

    bronzeUlrika is a bronze member