Hart Callahan Named One Of GrowthCap's Top Software Investors of 2025

NewSpring General Partner Hart Callahan has been named to GrowthCap’s Top Software Investors of 2025 list. This annual recognition highlights the most accomplished and trusted investors guiding software companies through today’s evolving landscape. GrowthCap evaluates nominees on the strength of their track records, ability to scale companies, investment outcomes, and the support they receive from peers, portfolio executives, and the broader software ecosystem. Hart’s selection reflects his deep expertise in identifying transformative opportunities, building high-performing teams, and helping portfolio companies harness innovation—including the disruptive potential of artificial intelligence—to achieve lasting growth and competitive advantage.

“I am grateful to be recognized alongside other leaders in software investing. The most rewarding part of my work is collaborating with visionary founders and executive teams to build companies that are not only financially successful, but also transformative in their markets.” — Hart Callahan

Hart Callahan is a General Partner at NewSpring, focused on the firm’s dedicated growth equity strategy. Since joining NewSpring in 2014, he has advanced through the ranks from Analyst to Partner, leading and supporting investments in high-growth SaaS and enterprise software companies.

Over more than a decade at the firm, Hart has partnered with founders and management teams to accelerate revenue growth, refine go-to-market strategies, expand into new markets, and drive successful exits. He is recognized for identifying proprietary opportunities, structuring flexible growth solutions, and guiding companies through complex transactions. His work has contributed to the development of category-leading businesses across NewSpring’s portfolio.

Hart holds a BA in finance and an MBA from Bryant University.

The GrowthCap Top Software Investor award is prepared by GrowthCap Advisory. The designation is awarded on an annual basis, and Hart Callahan received the award in 2025. The list of GrowthCap Top Software Investors for 2025 was published on October 1, 2025.

Nominees were evaluated based on the support of others in the software ecosystem, which may include their own firm, their portfolio companies, and/or their peers in the industry, among others. Additional research was then performed to assess each nominee’s overall career, breadth of investing experience, capability for scaling companies, recent investments made and exited, as well as character, among other factors. The full extent of the scope of firms and data included in the related surveys or evaluations is unknown. Following receipt of the award, NewSpring paid a production fee for the publication of the award.