John Baumstark

Managing Director

John is a co-founder of Resurgens and brings over twenty-five years of entrepreneurial and operational experience to the firm. He is a two-time private equity-backed successful CEO, and was the COO of a software company sold as one of the nation’s largest software acquisitions at the time. John has been backed by some of the world’s leading technology investment firms, including Insight Venture Partners, NEA, Warburg Pincus and Goldman Sachs.

Most recently, John was the founding Chairman and CEO of Suniva, the leading American manufacturer of highly efficient, affordable solar cells and modules. Prior to leading Suniva’s growth, John was an operating partner at H.I.G. Capital, where he partnered closely with Resurgens’ co-founder, Fred Sturgis, on new investments and development of portfolio companies. Prior to H.I.G. Capital, John was the CEO of Insight-backed DWL Software, an enterprise software company that helped pioneer the Master Data Management space. Under his leadership, DWL was named one of the fastest-growing technology companies in North America three years in a row by Deloitte and Touche and was acquired by IBM. Prior to DWL, John was the Chief Operating Officer of TRADEX Technologies, during which time TRADEX became the market leader in digital marketplace platforms. TRADEX was acquired by Ariba for $5.6 billion, making it one of the largest software acquisitions in history at the time of the acquisition. He was also SVP of Worldwide Field Operations for Infinium Software, where he was part of the leadership team that led a successful initial public offering, and acquired two companies.

John is a well-known executive in the software and technology industries and was often called on by private equity firms to provide leadership and expertise in their portfolio companies. He is a former director of Procuri (acquired by Ariba) and Marketmax (acquired by SAS), both of which were portfolio companies of Insight Venture Partners.

John graduated from Colorado College with a B.A. in Business/Economics, and is a graduate of the AeA Stanford Executive Institute.

Fred Sturgis


Fred is a co-founder of Resurgens and brings over twenty years of technology company investment and advisory experience to the firm. Fred has been a leader in developing investment practices at two of the industry’s most successful private equity firms, and he has worked with entrepreneurs and technology executives at dozens of software and tech-enabled services companies to create significant value for shareholders and employees.

Prior to forming Resurgens, Fred was a Managing Director and the head of the small-buyout practice group at Accel-KKR, one of the industry’s leading technology private equity firms. Working with Adi Filipovic, Fred led new investments for the firm and shaped the direction and strategy of the group for AKKR. Prior to Accel-KKR, Fred spent over twelve years as a Managing Director with H.I.G. Capital, one of the leading private equity firms focused on the lower end of the middle market. Over time, Fred was the co-head of the firm’s venture capital efforts, and he subsequently led the group’s transition into growth equity and technology buyout investing. Fred was one of the earliest members of the team which oversaw dramatic growth at H.I.G., from $500 million to over $15 billion in assets under management. While at H.I.G., Fred opened and managed the firm’s Atlanta office, led, managed and exited several investments, and hired over twenty investment professionals.

Prior to joining H.I.G., Fred was a Vice President in the technology investment banking group of Hambrecht & Quist.  At H&Q, he was a member of the firm’s East Coast software team, advising clients on a variety of M&A and capital raising transactions and sponsoring several principal investments through H&Q’s $500 million venture capital fund.  Previously, Fred was with the investment banking groups of both Alex Brown & Sons and Robinson-Humphrey. Fred began his career with Andersen Consulting (Accenture), where he managed software development and operations strategy initiatives for the firm.

Fred graduated with a B.S. degree in Mathematics with honors from Furman University, where he was a varsity football player and was named to the All-Southern Conference and All-South Carolina teams. Fred subsequently received an M.B.A. from The Wharton School of the University of Pennsylvania, where he graduated as a Palmer Scholar.

Adi Filipovic


Adi is a co-founder of Resurgens and brings a decade of technology-focused investment and advisory experience to the firm. Before founding Resurgens, Adi most recently teamed up with Fred Sturgis to spearhead Accel-KKR's small buyout effort, where they led several investments for the firm.

Prior to Accel-KKR, Adi was a Case Team Leader at Bain & Co. in the private equity group where he led due diligence initiatives and drove post-investment strategic initiatives for various investment firms including New Mountain Capital, GTCR and Warburg Pincus. Adi was also a leader in Bain's advanced analytics group focused on the development of "data as an asset" initiatives, particularly as they apply to the financial services industry and customer acquisition/retention efforts. Prior to Bain & Co., Adi was an Associate in the growth equity practice of H.I.G. Capital, where he worked with Fred on identifying and evaluating new investment opportunities.

Adi graduated Summa Cum Laude from Furman University with a B.S. in Mathematics and Economics. Adi was a member of the varsity football team and was named to the ESPN The Magazine 1st Team Division I Academic All-American Team. He was also named as the NACDA National Student Athlete of the Year. Adi subsequently received an M.B.A. from The University of Chicago Booth School of Business, where he graduated with High Honors.

Jimmy Sourbeer

Vice President








Jimmy brings over eight years of investment experience to Resurgens. Before Resurgens, Jimmy was a Vice President at PGi, one of the largest providers of collaboration software and services. While at PGi, Jimmy assisted in leading the execution of strategic investments, deploying over $175 million in four acquisitions. He also played a key role in the $1 billion take-private transaction of PGi.

Prior to PGi, Jimmy was an Associate at ICG, where he identified investment opportunities, evaluated transactions, and devised strategic and operational recommendations for portfolio companies in the technology sector. Jimmy began his career in investment banking at BMO Capital Markets and Bank of America Merrill Lynch, where he advised clients on acquisitions, equity raises, debt placements, and strategic alternatives. 

Jimmy graduated with a B.A degree in Economics from Northwestern University, where he was a captain of the varsity swim team and was named an Academic All-Big Ten Scholar Athlete. Jimmy subsequently received an MBA from Columbia Business School, where he was a member of the Private Equity Fellows Program, received the Robert H. Montgomery Prize in Accounting, and graduated with Dean’s Honors.

Luke brings a wide range of operational experience to Resurgens. Before joining the fund, Luke was a manager at Bain & Co., where he was a member of the Technology and Advanced Analytics practices. 

At Bain, Luke led consulting teams that supported the strategic transformation of several technology companies, including an enterprise software company whose market cap increased 40% the following year. In addition to his experience with technology companies, Luke’s project experience includes corporate strategy, post-merger integration, sales and marketing improvement, and pricing strategy. Luke also spent a year in Bain’s private equity practice, performing commercial due diligence for a number of large private equity funds.

Before Bain, Luke spent 10 years as an officer in the U.S. Marine Corps, where he commanded armor and combat engineering units on three deployments to Iraq and Afghanistan.   

Luke graduated with distinction from the U.S. Naval Academy with a B.S. in Systems Engineering. He received an M.B.A. from the Darden School of Business at the University of Virginia, where he received the William Michael Shermet Award for academic excellence.

Luke Anderson

Vice President, OPERATIONS

Will Heyward


Will joined Resurgens in 2017 as an Associate. Prior to Resurgens, Will was an Investment Banking Analyst in the Technology & Services Group of Raymond James. Will worked on a variety of M&A transactions with enterprise software and services clients, and was actively engaged with several technology private equity sponsors on many of his assignments at the firm. Will graduated with Highest Distinction from the University of North Carolina at Chapel Hill with a B.S. in Business Administration, Corporate Finance. At UNC, Will received the Award for Undergraduate Excellence in Finance, graduating first in his class of finance majors.

Henry Chancy


Henry joined Resurgens in 2017 as an Associate.  Before joining Resurgens, Henry completed internships with Accenture and, more recently, EVO Payments. At EVO, he supported the Global M&A group, engaging with and evaluating partnerships with numerous multi-national financial institutions as the firm expanded its international footprint. Henry graduated Magna Cum Laude from The Ohio State University with a B.S. in Business Administration, Finance. He also was a 4-year varsity letterman on the Men's Soccer team.