Rincon Venture Partners takes a team-based approach to everything we do. This requires more collaboration and less ego, but it provides for better decisions and better support of our portfolio companies. Each portfolio company gets the whole team, not just “their partner."




Managing PARTNER

Jim is co-founder and Managing Director of Rincon Venture Partners. In this capacity, he is responsible for driving the fund’s investment activities, as well as the firm’s operations. Jim is in his fifteenth  year as a VC.

Previously, Jim led software investing at Broadview Capital Partners, a $250 million expansion-stage venture capital firm based in the Bay Area. Before BCP, Jim was a member of the Technology Investment Banking Group at Alex. Brown & Sons (and its successor, Deutsche Bank Securities). There, he concentrated on equity private placements and initial public offerings for software companies. Jim began his career with Symmetrix, a boutique management consulting firm founded by a Bain & Co. founder, which helped to create strategic advantage through the application of technology. At Symmetrix, Jim specialized in strategy formulation and economic modeling.

Jim received his MBA with highest distinction (first in his class) from the Amos Tuck School at Dartmouth College, and his BS in Economics (magna cum laude) from the Wharton School at the University of Pennsylvania.

Jim serves on the Boards of Directors of Campus Explorer, Conversion Logic, Keen IO, Mobcrush, Rentlytics, Rainforest QA, Steelhouse, TaxJar and Tradesy. He previously served on the Boards of Cadforce (acquired by Neilsoft), Packet Island (acquired by BroadSoft), Burstly (acquired by Apple), DataPop (acquired by Criteo), and Shift (acquired by Brand Networks). In addition, he serves on the Boards of Directors of Friends of Yosemite Search and Rescue and the Los Angeles Venture Association, on the Advisory Board of the Douglas Family Preserve.

John greathouse


John has held a number of senior executive positions with successful startups for fifteen years before joining Rincon in 2008. At Computer Motion, he was the CFO and VP of Business Development, leading Sales, Marketing, BD and Finance. As CFO John spearheaded the Company’s IPO in 1999, and then its merger (33%/66%) with Intuitive (which now has an $18 billion market cap).  At Expertcity, John served as CFO and SVP of Strategic Development, again leading Sales, Marketing, BD and Finance, as well as Services. Expertcity became Citrix Online (after it was acquired by Citrix for $240mm), which is currently one of the world’s largest SaaS businesses. At CallWave, he served as the SVP of Sales & Business Development. Callwave went public in 2005.  Finally John co-founded RevUpNet in 2006, a Performance Marketing agency, which he and his co-founder bootstrapped and sold to UK-based Coull in 2012.

John  is a tenured member of the University of California at Santa Barbara’s Technology Management Faculty where he teaches courses on New Venture Creation and Entrepreneurial Sales. In 2012, he was granted the University's prestigious "Venky" award as recognition of his multi-decade impact on Santa Barbara's entrepreneurial community. John earned his MBA from Wharton, and his undergradute degree at The University of Maryland. 

John was an active angel investor before joining Rincon, with investments including Eucalyptus (acquired by HP), Rightscale (backed by Benchmark, Index and others), and Appfolio (2015 IPO).  He serves on the Boards of Directors of ElephantDrive, Invoca, Jazz Recruiting, HG Data, Local Market Launch and SimpleLegal, and also oversees Rincon’s investments in Earnest Research, Respondly, Sideqik and TaxJar.  John previously served on the Board of Connexity (acquired by Shopzilla, since renamed Connexity).  He is the author of a hands-on startup blog: www.johngreathouse.com.



Tracy Di Nunzio is the Founder and CEO of Tradesy, the world's leading peer-to-peer marketplace for women's fashion. As an artist-turned-entrepreneur, Tracy bootstrapped the business in its early days by renting out her bedroom on Airbnb and sleeping on the couch. Today, Tradesy has over 100 team members and 6mm customers, and has raised more than $70M from top-tier investors like Rincon Venture Partners, Kleiner Perkins, and Richard Branson.  Tracy is routinely sought after as a subject matter expert on marketplaces, e-commerce, fashion & technology and Women in technology.


Kim Perell is CEO & President of Amobee.  Kim Perell is a seasoned entrepreneur and executive with over 15 years of experience serving as a CEO and President in the internet technology sector, building high-performing teams, overseeing complex mergers, acquisitions and integrations, and scaling global operations. Previously, Kim was the CEO of Adconion Direct, a global digital marketing company, which was acquired by Amobee in 2014.  Prior to Adconion Direct, Kim was the founder and CEO of Frontline Direct, a digital marketing company which she self-funded and grew to more than $100 million in annual revenue.  Frontline Direct was acquired in 2008 by Adconion Media Group and Kim became CEO of the combined entities.  Prior to founding Frontline Direct, Kim was responsible for internet marketing and sales at Xdrive Technologies (acquired by AOL).  Kim is a 2013 Ernst & Young Entrepreneur of the Year Award recipient, named one of Business Insider’s Most Powerful Women in Mobile Advertising in 2015, and was named 2015 and 2016 Female Executive of the Year by the American Business Awards.


Brett Queener’s entire career has been focused on growing software companies. Since 2013, Brett served as COO at SmartRecruiters, where he partnered with the founding team to convert a pre-revenue company into the fastest growing enterprise player in the recruiting technology space, serving high-profile customers like Visa, Bosch, and IKEA. Prior to SmartRecruiters, Brett was an executive at two of the fastest growing software companies in history. He spent a decade at salesforce.com where he served in a variety of senior leadership roles including Executive Vice President Products, EVP & GM Data Cloud and EVP & GM Marketing Cloud, focused on driving the company’s rapid growth. Prior to salesforce.com, Brett held senior marketing and business development positions at Siebel Systems, which was eventually acquired by Oracle Corporation. Brett serves on the board of SmartRecruiters, Lytics, and Invoca, and he is an active investor and advisor to numerous entrepreneurs.

Evan Rifkin

Evan most recently served as co-founder and CEO of Burstly, a Rincon portfolio company acquired by Apple.  Burstly developed a suite of tools for mobile app developers including Testflight, the most widely used mobile app beta testing service on the planet.  Previously Evan served as co-founder and CEO of Tagworld/Flux, a provider of white-lable social networking software that was acquired by Viacom, and is used to power social functions on Viacom digital properties (MTV, Comedy Central, BET, etc).  He also founded Santa Monica Networks, and served as the CEO and co-founder of Traffic Marketplace, which became one of the nation’s largest online ad networks before its acquisition by Vivendi’s Uproar unit. In addition, he helped start and provide seed capital for numerous other startups including Adconion (formerly EuroClick), Gradient X and Conversion Logic.


Courtney Rosen Andelman

Courtney has experience both as a VC and as a VC-backed founder and CEO. She most recently served as a member of the investment team at Accenture Technology Ventures. Previously, she built eHow, a consumer web information site that is now a cornerstone property of the MySpace CEO's latest start-up, Demand Media. Courtney serves as a sounding board on new investment opportunities, and as an executive coach to portfolio company CEOs.

brian bell

Brian has 15 years of executive leadership experience at software companies of all sizes.  Currently Brian serves as CMO of Ping Identity, a leading venture-backed Provider of single sign-on and identity management SaaS solutions.  Before that he was CMO at Zuora, the global leader in subscription commerce and billing.  Previously, Brian was general manager of the Service & Portfolio Management Business at CA Technologies where he helped transition on-premise application businesses to subscription cloud services. Prior to CA, Brian oversaw marketing efforts at BMC Software, led Remedy Software's marketing organization, and held business development and product management roles at Extricity and Kao Corporation.   Brian also spent several years with the Boston Consulting Group.

Josh Cobb

Josh is Vice President, Global Partner Management at Yahoo!. In this position he has responsibility for all partnership management at Yahoo including over 4600 search, mobile, content, media, software, distribution, ad-tech, small business and listings partnerships. This network spans 28 counties and 16 languages and accounts for billions of Yahoo’s revenue. Previously Josh was Sr Director of Yahoo Publisher Revenue Optimization & Business Development, building the Yahoo Publisher Network and helping those publishers optimize monetization and user experience. Before that Josh was with Right Media and Overture Services, both acquired by Yahoo.

Jason Droege

Jason serves as Head of Uber Everything for Uber. His programs include Uber Rush, uberESSENTIALS and uberFRESH. The Uber Everything Group is responsible for defining what product delivery businesses Uber pursues. Prior to joining Uber, Jason was TASER’s President of Video & Cloud. His business unit is responsible for Evidence.com, AXON Flex, and TASER Cam. Jason joined TASER in November 2008 to launch the Video & Cloud business unit for TASER. Previously Jason was co-founder & President of Gizmo5 Technologies (VoIP company acquired by Google), an Internet service that connected 6 million people and enabled them to place millions of voice and video calls daily.  Before that he was Founder & President of The Back 9 Golf Co. (think Kelley Blue Book for golf equipment) and Co-founder & VP, Business Development of Scour.com (music, image and video search engine acquired by Centerspan Communications).

Dan Engel

Dan co-founded and led FastSpring, a leading SaaS e-commerce platform for 2200+ global software companies and SaaS services, starting in 2005. FastSpring was ranked the #1 fastest-growing company in the Greater LA area by Deloitte in 2011. Previously, Dan led online advertising for Google’s AdSense and AdWords products. Before Google, Dan led customer acquisition at Picasa, a digital photo software company acquired by Google in 2004. Prior to Picasa, Dan worked with Rincon Partner John Greathouse on customer acquisition for Citrix Online’s GoToMyPC and GoToMeeting products, after having been an EIR at Idealab.

Josh Jacobs

Josh serves as the Global CEO of Accuen, Omnicom's programmatic media buying unit. Prior to Accuen, Josh was SVP of Advertising Products and Global Marketing at Glam Media. Josh joined Glam from Yahoo! where, as VP and General Manager of Marketing Technology, he was responsible for driving Yahoo!'s advertising technology and publisher network display partnership strategy. He also oversaw the Yahoo! Right Media Exchange as General Manager. Before Yahoo!, Jacobs was president of the privately-held software company X1 and a senior executive at several early Internet media startups, including Bigstep.com, which he co-founded.

Alex Karelin

Founder and CEO, TulaCo

TulaCo is a 100+ person strong software development company that deploys seasoned, outsourced development teams for rapidly-scaling early-stage companies whose businesses rely on high performance/high availability web services or mobile-based applications. Beside several successful startups built and sold between 1999 and 2004, the team was responsible for the creation of Flux, a pioneering enterprise content management platform that underpins most of MTV/Viacom web properties. In addition to entertainment technology Alex has deep experience and passion in technology strategy, ERP, enterprise integration and M&A. Alex holds an MBA from UCLA and Master’s Degree in Mathematics from TSU.

brian kelly

Brian Kelly was Rincon’s first Limited Partner, and helped get the firm started. Brian co-founded Eastern Real Estate, LLC. Established in 2000, Eastern Real Estate is one of the largest commercial real estate investment and development firms in the Northeast. In conjunction with many of the nation’s leading retailers, Eastern has led the development of over 100 projects, representing in excess of 10 million square feet and over $1 billion in value. Development partners have included Target, The Home Depot, Stop & Shop, Barnes & Noble, PETCO, Wal*Mart, KMart and Staples. 

Prior to the launch of Eastern Real Estate, Brian co-founded Atlantic Retail Properties and grew it into New England’s largest and most active retail brokerage, completing over 200 transactions in excess of 25 million square feet.  

Brian serves on the Executive Board of Directors of Autism Speaks, a national fund-raising initiative that is committed to raising public awareness and support for research and treatment of autism.

Kevin O'Connor 

Kevin O'Connor is the CEO of Graphiq (formerly FindTheBest), whose mission is to drastically simplify the process of obtaining the world's knowledge. Graphiq turns complicated data into vivid and contextually-rich visualizations and knowledge products. Kevin has over 30 years of experience in the tech space – both as an entrepreneur and investor. Kevin was the founder, CEO, and chairman of internet advertisement-technology giant, DoubleClick, which was acquired by Google in 2007 for $3.1 billion. Prior to DoubleClick, Kevin founded and served as the vice president of research for Cincinnati-based Intercomputer Communications Corporation (ICC), which was acquired by DCA in 1992. Kevin remained with DCA as the vice president of research until 1995 when he left to found DoubleClick. Aside from building his own companies, Kevin started O'Connor Ventures, investing in companies such as Internet Security Systems, 1-800-Flowers.com, Campus Explorer, Procore, HG Data, HotJobs, and MeetUp.

Chris Weasler

Chris currently works for Facebook in Mobile Partnerships. He combines major wireless carrier experience with wireless data services start-up experience, and regularly provided advice to the FCC and consults for both mobile startups and carriers on a host of initiatives, including support for Verizon Wireless in their partnership with Skype. Previously, Chris was VP of Business Development at Lightsquared and VP of Global Development and Roaming for Sprint Nextel. Before that started at ground level in a start-up that went public called Omnisky, and at Palm. Rincon utilizes him as a subject-matter expert for opportunities in the mobile space.




Loren Shepard has been working in small business administration: innovating, establishing, and maintaining administrative policies and procedures for successful new ventures since receiving her bachelor’s degree in Communication from UCSB in 1991. She is also a classically trained graphic artist, responsible for creating and maintaining websites and printed marketing materials. 

Before joining Rincon Venture Partners, Loren worked for the University of California, Santa Barbara where she pioneered the administration of a National Science Foundation grant for the Computational Science and Engineering Program. 

Prior to her appointment with the Computational Science and Engineering Program, Loren worked concurrently for UCSB as a Computer Resource Specialist at the Institute for Computational Earth System Science and as the Business Manager for Planet Earth Science, a Santa Barbara based environmental educational software company operating under a grant from NASA. 

In addition, Loren led the technical illustration department of Dames and Moore, an environmental consulting firm before co-founding and partnering Pacific Club Maintenance, a successful small business providing service to central coast athletic clubs. 

In her spare time, Loren serves as the captain of a local dog training club where she trains dogs and amateur handlers for competition in dog sports.



Lisa Riedmiller has been performing accounting functions for venture capital firms for seventeen years.  Firms for whom she has worked include Palomar Ventures, Windward Ventures, OSCCO Ventures, Capstone Ventures, Ocean Park Ventures and Enterprise Partners.  

Lisa holds a BA in English from San Jose State University, graduating summa cum laude.