Sullivan
Microsoft has discontinued support for Internet Explorer. To access the Sullivan website, please install a modern browser like Microsoft Edge or Google Chrome.

We represent regional, national and international venture capital firms that invest in early-stage companies across a range of industries, most notably in software, communications and telecommunications, therapeutics, medical devices and energy sectors. 

Man looking into a nighttime cityscape being projected in gallery space

Sullivan's venture capital investment professionals deal with the many contingencies that arise in transactions such as portfolio investments, liquidity events, corporate governance and compliance matters, intellectual property and other due diligence-review services. We also work with venture capital firms on fund formation and fund-raising efforts, and regularly advise institutions making investments in venture capital funds.

A key strength is our ability to facilitate introductions between investors and entrepreneurs and emerging companies, particularly in technology sector companies located in Ireland and Israel.

Representative Client Work

  • Represented a Massachusetts-focused seed and early-stage venture firm in numerous portfolio company investments in the software, communications, life sciences and material sciences sectors
  • Assisted major financial services firm in strategic venture investments of more than $225 million in international telecommunications companies
  • Represented a group of venture capital investors in financing rounds aggregating $21.5 million in early-stage funding for a medical technology company developing an innovative, percutaneous approach for delivering heart valves to treat late-stage aortic stenosis
  • Represented a leading venture capital fund with more than $1.6 billion in committed capital under management; facilitated the fund's first "going-private" transaction with a publicly traded enterprise
  • Represented a venture capital firm in connection with due diligence analyses related to a number of medical device technologies, including spinal implants, ocular lens implants, vascular grafts, aortic valve replacements and cardiac ablation devices
  • Represented a syndicate of life sciences venture capital firms in a series of multi-million dollar bridge financings followed by a $4.4 million financing round and recapitalization for a developer of disposable catheter products for the treatment of cardiovascular disorders using laser energy