Meet The Team

The YGP team represents over 40 years of Board and C-Level growth acceleration experience including chairman, CEO, COO, CFO, CMO, and CPO roles. With deep expertise in managing public and private companies, IPOs, M&A (both acquiring and selling) and capital sourcing coupled with experience in a broad range of industry sectors, with particular depth in software as a service and cloud computing. YGP is uniquely equipped to elevate the performance and value of your organization.

Jason Mittelstaedt
Founding Partner

Loves partnering with entrepreneurs to transform disruptive ideas, products and services into best-in-class, high value businesses.

David Vap
Founding Partner

Devoted to defining and building products that people love to use and market strategies that work.

Yellowstone Growth Partners brings to the table all of the key expertise necessary for creating great SaaS businesses.  The team has worked together for over 10 years years building and growing a highly successful public SaaS company that was ultimately acquired by Oracle.  Jason and David have highly complimentary executive skills with Jason driving Strategy and Marketing, and detailed alignment across all of the the business, and David defining and building world class cloud based apps and services.  This highly complimentary expertise, tenure working together, and exposure to numerous other SaaS businesses allows Yellowstone Growth Partners to very quickly drive high impact partnerships with our clients.


“Working with Jason, David, and Susan has been a transformational experience for onXmaps.  The strategic clarity that resulted from our initial strategy intensive paved the way for us to transition from a hybrid tech/manufacturing company into a pure-blooded SaaS business.  The partnership has resulted in significant value creation through accelerated revenue growth, business model and customer experience optimizations, product improvements and an expanded and elevated team… and the best is yet to come!”

Eric Siegfried, Founder and CEO of onXmaps

Yellowstone Growth Partners has provided invaluable guidance in that has been instrumental in transitioning our company from a startup company to a true product company with a clear strategy and that is postured to scale.  In particular, Jason Mittelstaedt provided a great framework for defining and articulating our strategy while David Vap has provided much needed insight to assist us in establishing a strong foundation of Product Management and Engineering practices. Without question, YGP provided enormous value of strategic significance that has dramatically impacted the value of our firm.

Robert Fuqua, CEO of RFID Implementation Firm

“YGP stepped up to the interim CEO role at Workfront, led by Susan Carstensen, and rapidly delivered on 3 growth imperatives; YGP engaged the team, customers and prospects to exceed sales and financial targets;  built a three year accelerated growth plan and immediate term execution plan; hired a world class CEO. The mix of executive, financial, product and marketing experience the team brought to the table was invaluable in value creation.”

Scott Maxwell, Founder and Managing Partner OpenView Partners

Partnerships and Experience