Jack Sinclair
Founder at Return Path, Inc.
Profile
Jack Sinclair is the founder of Return Path, Inc. (founded in 1999) where he holds the title of Chief Financial Officer.
He is also the founder of Bolster Networks, Inc. (founded in 2020) where he holds the title of Chief Financial Officer.
Currently, Mr. Sinclair is the Chief Financial Officer at Stack Exchange, Inc. Mr. Sinclair's former job was as a Principal at Stern Value Management Ltd.
He obtained his undergraduate degree from the University of Pennsylvania.
Jack Sinclair active positions
| Companies | Position | Start |
|---|---|---|
Return Path, Inc.
 Return Path, Inc. Information Technology ServicesTechnology Services Return Path, Inc. engages in the provision of email data solutions. It offers email optimization, email fraud protection, and client services. The company was founded by Matthew Y. Blumberg, George Bilbrey and Jack Sinclair in 1999 and is headquartered in New York, NY. | Founder | 1998-12-31 |
Stack Exchange, Inc.
 Stack Exchange, Inc. Internet Software/ServicesTechnology Services Stack Exchange, Inc. operates a network of question and answer sites on diverse topics. It operates websites for software developers, including Stack Overflow, a site for programmers to find, ask, and answer their questions serving professional and novice programmers each month. The firm also expands to cover topics as diverse as mathematics, home improvement, statistics, and english language and usage. The company was founded by Joel Spolsky, Michael Howard Pryor and Jeff Atwood in 2008 and is headquartered in New York, NY. | Director of Finance/CFO | - |
Bolster Networks, Inc.
 Bolster Networks, Inc. Internet Software/ServicesTechnology Services Bolster Networks, Inc. provides commercial business services. The company was founded by Matthew Y. Blumberg, Shawn Nussbaum, Ken Takahashi, Nick Badgett, Cathy Hawley, Jack Sinclair, Andrea Ponchione and Jennifer Goldman in April 2020 and is headquartered in Indianapolis, IN. | Founder | 2020-03-31 |
Former positions of Jack Sinclair
| Companies | Position | End |
|---|---|---|
Stern Value Management Ltd.
 Stern Value Management Ltd. Miscellaneous Commercial ServicesCommercial Services Stern Value Management Ltd.. provides management consulting services. The firm advises clients in transaction, strategy, performance, and transformation. The company was founded by Joel M. Stern on November 1, 1982 and is headquartered in New York, NY. | Corporate Officer/Principal | - |
Training of Jack Sinclair
| University of Pennsylvania | Undergraduate Degree |
Experiences
Positions held
Connections
1st degree connections
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 4 |
|---|---|
Return Path, Inc.
Return Path, Inc. Information Technology ServicesTechnology Services Return Path, Inc. engages in the provision of email data solutions. It offers email optimization, email fraud protection, and client services. The company was founded by Matthew Y. Blumberg, George Bilbrey and Jack Sinclair in 1999 and is headquartered in New York, NY. | Technology Services |
Stern Value Management Ltd.
Stern Value Management Ltd. Miscellaneous Commercial ServicesCommercial Services Stern Value Management Ltd.. provides management consulting services. The firm advises clients in transaction, strategy, performance, and transformation. The company was founded by Joel M. Stern on November 1, 1982 and is headquartered in New York, NY. | Commercial Services |
Stack Exchange, Inc.
Stack Exchange, Inc. Internet Software/ServicesTechnology Services Stack Exchange, Inc. operates a network of question and answer sites on diverse topics. It operates websites for software developers, including Stack Overflow, a site for programmers to find, ask, and answer their questions serving professional and novice programmers each month. The firm also expands to cover topics as diverse as mathematics, home improvement, statistics, and english language and usage. The company was founded by Joel Spolsky, Michael Howard Pryor and Jeff Atwood in 2008 and is headquartered in New York, NY. | Technology Services |
Bolster Networks, Inc.
Bolster Networks, Inc. Internet Software/ServicesTechnology Services Bolster Networks, Inc. provides commercial business services. The company was founded by Matthew Y. Blumberg, Shawn Nussbaum, Ken Takahashi, Nick Badgett, Cathy Hawley, Jack Sinclair, Andrea Ponchione and Jennifer Goldman in April 2020 and is headquartered in Indianapolis, IN. | Technology Services |
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