United States · Funded startup
Funding summaryUpdated 26 Oct 2026
$156Mraised across 5 rounds since 2004, from 5 sources
Each circle is a round, placed by date and sized by amount. The line above is the running total.
No investor was named in the report.
From a historical funding record
No investor was named in the report.
Reported by boston.comSEC filing: $35M sold, first sale Jul 2013
No investor was named in the report.
Reported by sec.govSEC filing: $38M sold, first sale Sept 2011
Polaris Partners
Domain Associates
Advanced Technology Ventures
Angel Healthcare InvestorsFrom a historical funding record
From GI Dynamics's own website: 8 on the team.
The busiest backers across the latest rounds. A filled square is a round they joined; a dark one, a round they led.
Polaris PartnersDomain AssociatesAdvanced Technology VenturesMedtronicCatalyst Health & Technology PartnersCutlass CapitalAngel Healthcare InvestorsSeedling EnterprisesMissing a round, or an investor who was in one? Tell us.
GI Dynamics's investors include Polaris Partners, Domain Associates, Advanced Technology Ventures, Medtronic and Catalyst Health & Technology Partners, and 3 more on record.
GI Dynamics has raised $156M across 5 rounds since 2004.
GI Dynamics's most recent round was an Undisclosed round of $34M in May 2014.
GI Dynamics's largest round on record is $58M (Growth), in Jul 2013.
GI Dynamics's first round on record, in May 2004, was backed by Polaris Partners, Domain Associates and Advanced Technology Ventures and 4 others.
GI Dynamics's latest named round is an Undisclosed round, in May 2014.
GI Dynamics is based in the United States.
In the same sector, and raised in the last eighteen months.
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United States · 
