Summerhill Venture Partners: Funding, Team & Investors

Summerhill Venture Partners was an investment firm focused on early and mid-stage technology companies across North America. The firm deployed capital into ventures specializing in wireless communications, digital media, and information technology. It provided strategic guidance and financial backing, aiming to foster growth and market penetration for innovative portfolio companies.

Joe Catalfamo and Gary Rubinoff co-founded Summerhill Venture Partners in 1993, with operations based in Toronto. Their insight recognized the burgeoning potential of internet-era technologies and the need for specialized venture capital to support the emerging tech ecosystem. Both founders leveraged backgrounds in finance and technology to connect innovative concepts with market execution.

The firm sought high-growth companies needing early capital and operational partnership. Summerhill Venture Partners invested in entrepreneurs developing disruptive solutions, assisting businesses to evolve into established market leaders. Its vision was to empower technology innovators by supplying crucial resources for sustained development and impact within competitive tech landscapes.

Date	Company	Round	Lead Investor(s)	Co-Investor(s)
Sep 23, 2015	ScribbleLive	$35.0M Series D	Richard Black	Blue Cloud Ventures, Emerillon Capital, Georgian Partners, Northleaf Capital Partners, Rogers Ventures, Waterloo Innovation Fund
Oct 2, 2014	Scribble Technologies	$12.0M Series C	WIN Fund	Georgian Partners, Rogers Venture Partners
Oct 2, 2014	ScribbleLive	$12.0M Series C	WIN Fund	Georgian Partners, Rogers Venture Partners
Oct 2, 2014	Scribble	$12.0M Series C	WIN Fund	Georgian Partners, Rogers Venture Partners
Sep 9, 2014	BLINQ Networks	$15.1M Series B	WIN Fund	BDC Capital, Kensington Capital Partners, NEW Venture Partners
Jan 13, 2014	Sonian	$8.0M Series C Extension	—	Openview, Prism VentureWorks
Jun 19, 2013	ScribbleLive	$8.0M Other Equity	—	Georgian Partners, Rogers Venture Partners
Jun 19, 2013	Scribble Technologies	$8.0M Other Equity	Simon Chong	Rogers Venture Partners
Sep 19, 2012	BLINQ Networks	$10.0M Other Equity	—	BDC Capital, NEW Venture Partners
Jul 2, 2012	Jumptap	$27.5M Other Equity	TIM Keating	John Simon, Redpoint Ventures, Valhalla Partners, WPP
May 1, 2012	Sonian	$14.0M Series C	—	.406 Ventures, First Round Capital, GPO Fund, Inovia Capital, Moment Ventures, Openview Venture Partners, Practical Venture Capital, Uncork Capital, Zinc, Marc Benioff, Roger Ehrenberg, Prism VentureWorks
May 5, 2011	Jumptap	$25.0M Other Equity	—	AllianceBernstein, General Catalyst, Redpoint Ventures, Valhalla Partners, WPP
Jan 18, 2011	Sonian	$9.0M Series B	—	Jeff B., Prism VentureWorks, Webroot
May 11, 2010	Vantrix	$14.0M Series C	DAN Mackeigan	BDC Capital, Entrepia Ventures, Innovacom, JK&B Capital
Aug 1, 2008	Jumptap	$26.0M Series D	AllianceBernstein	Bessemer Venture Partners, Betaworks Ventures, BoxGroup, Chemistry VC, General Catalyst, Khosla Ventures, Lerer Hippeau, Qualcomm Ventures, Redpoint Ventures, Spark Capital, Techstars, Viola Ventures, Redpoint Ventures, Valhalla Partners, WPP
Sep 12, 2007	Vantrix	$12.0M Series B	ALI Shadman	BDC Capital, Entrepia Ventures, Innovacom

Date	Company	Round	Lead Investor(s)	Co-Investor(s)
Sep 23, 2015	ScribbleLive	$35.0M Series D	Richard Black	Blue Cloud Ventures, Emerillon Capital, Georgian Partners, Northleaf Capital Partners, Rogers Ventures, Waterloo Innovation Fund
Oct 2, 2014	Scribble Technologies	$12.0M Series C	WIN Fund	Georgian Partners, Rogers Venture Partners
Oct 2, 2014	ScribbleLive	$12.0M Series C	WIN Fund	Georgian Partners, Rogers Venture Partners
Oct 2, 2014	Scribble	$12.0M Series C	WIN Fund	Georgian Partners, Rogers Venture Partners
Sep 9, 2014	BLINQ Networks	$15.1M Series B	WIN Fund	BDC Capital, Kensington Capital Partners, NEW Venture Partners
Jan 13, 2014	Sonian	$8.0M Series C Extension	—	Openview, Prism VentureWorks
Jun 19, 2013	ScribbleLive	$8.0M Other Equity	—	Georgian Partners, Rogers Venture Partners
Jun 19, 2013	Scribble Technologies	$8.0M Other Equity	Simon Chong	Rogers Venture Partners
Sep 19, 2012	BLINQ Networks	$10.0M Other Equity	—	BDC Capital, NEW Venture Partners
Jul 2, 2012	Jumptap	$27.5M Other Equity	TIM Keating	John Simon, Redpoint Ventures, Valhalla Partners, WPP
May 1, 2012	Sonian	$14.0M Series C	—	.406 Ventures, First Round Capital, GPO Fund, Inovia Capital, Moment Ventures, Openview Venture Partners, Practical Venture Capital, Uncork Capital, Zinc, Marc Benioff, Roger Ehrenberg, Prism VentureWorks
May 5, 2011	Jumptap	$25.0M Other Equity	—	AllianceBernstein, General Catalyst, Redpoint Ventures, Valhalla Partners, WPP
Jan 18, 2011	Sonian	$9.0M Series B	—	Jeff B., Prism VentureWorks, Webroot
May 11, 2010	Vantrix	$14.0M Series C	DAN Mackeigan	BDC Capital, Entrepia Ventures, Innovacom, JK&B Capital
Aug 1, 2008	Jumptap	$26.0M Series D	AllianceBernstein	Bessemer Venture Partners, Betaworks Ventures, BoxGroup, Chemistry VC, General Catalyst, Khosla Ventures, Lerer Hippeau, Qualcomm Ventures, Redpoint Ventures, Spark Capital, Techstars, Viola Ventures, Redpoint Ventures, Valhalla Partners, WPP
Sep 12, 2007	Vantrix	$12.0M Series B	ALI Shadman	BDC Capital, Entrepia Ventures, Innovacom

Summerhill Venture Partners

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Investments Made