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David Siegel

David Siegel | CIPP (US)

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  • 5 / 5
  • Startup transactional law
  • Corporate financings and acquisitions
  • Intellectual property litigation
  • Commercial dispute resolution

David Siegel stands out as a Partner at Grellas Shah, blending sophisticated transactional and litigation expertise for startups in a rare dual capacity.


An accomplished startup lawyer and litigator, he manages broad corporate, transactional, and IP matters—including multi-million-dollar financings and acquisitions—while excelling in complex IP, corporate, and commercial disputes. His deep versatility equips founders to navigate high-stakes challenges from funding rounds to courtroom battles. Featured in TechCrunch, US News & World Report, The Information, TechTarget, and more, David's pragmatic approach delivers results across the startup lifecycle.