Episode 23

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Published on:

12th Nov 2025

What is the Valley of Death, and how can startups bridge it?

The Toughest Phase in Building a Space Startup

In this episode of VHTB, hosts Justus Kilian of Space Capital, Matt Gjertsen of Better Every Day Studios, and Brian Mejeur of AdAstra Talent Advisors kick off a three-part series on one of the toughest challenges in space entrepreneurship. The Valley of Death.

From defining what this critical gap really is to exploring how startups can bridge it through smart funding strategies, investor alignment, and culture-building, this discussion sheds light on how deep tech founders can survive and scale between prototype and commercialization.

Drawing from real-world examples like SpaceX, government contracting hurdles, and venture-backed startup experiences, the team dives into how planning, preparation, and disciplined execution can determine whether a company successfully crosses the Valley, or stalls within it.

Episode Highlights

00:00 Kicking Off the Conversation: Introducing the “Valley of Death” series

01:05 What Is the Valley of Death? Defining the gap from prototype to scalable business

02:56 Lessons from SpaceX and early startup survival stories

04:00 The Government’s Role: How procurement and contracting shape deep tech risk

06:01 Why the Valley Exists: Funding structures, CapEx, and operational complexity

08:53 Anchoring to a Long-Term Vision: Avoiding short-term distractions

10:57 Balancing Government Contracts with Strategic Product Development

13:05 The Leadership Challenge: Staying lean and hiring intentionally

15:35 Investor Sophistication: Understanding SBIRs, TACFI, and deep tech metrics

17:41 The Rise of Government Business Development Roles

18:58 Financial Planning for the Valley: Tools and funding mechanisms

20:36 Working with Investors, Customers, and Non-Dilutive Funding

22:30 Using Venture Debt and Strategic Equity Wisely

22:58 The Importance of Discipline and Timing When Capital Feels Abundant

24:17 Building Relationships Before You Need Capital

24:56 Knowing When to Raise and Keeping a Healthy Runway

29:00 Wrap-Up: Building the Bridge to Commercialization: Preparing for Implementation

Episode Takeaways

  • Define the Valley Early: Understand where your company sits between prototype and product.
  • Anchor to the Long-Term Vision: Don’t let short-term contracts or tangential revenue derail your mission.
  • Plan Before You Need Capital: Build relationships and financial pathways while resources are strong.
  • Leverage Non-Dilutive Funding Wisely: Use SBIR, TACFI, and strategic capital to buy down risk.
  • Hire for Alignment, Not Convenience: A small, mission-driven team will carry you farther than a large, misaligned one.

Subscribe to VHTB for more deep dives into the talent, culture, and finance sides of the space startup ecosystem.

Follow Space Capital, AdAstra Talent Advisors, and Better Every Day Studios for updates and insights.

Social media links for each organization can be found on their respective websites.

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About the Podcast

A VC, a Headhunter, and a Trainer Walk into a Bar
VHTB is your guide to the talent, culture, and capital forces shaping the hard tech startup ecosystem. Each episode, hosts Justus Kilian of Space Capital, Seyka, and Brian Mejeur of AdAstra Talent Advisors, and Matt Gjertsen of BUILT bring stories and lessons from the front lines of building and backing some of the most innovative companies on the planet.

About your hosts

Brian Mejeur

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Founder, CTO/COO, Advisor | Space, Clean Tech & Defense Talent Expert | Ex-SpaceX Engineer | Husband | Dad

Brian is one of the founders of AdAstra Talent Advisors where he functions as CTO and COO while partnering with leading early stage startups in Space, Defense, and Clean Tech.

Having spanned 7 years at SpaceX, a stint at an early stage startup, and holding BS & MS degrees in Aerospace Engineering, Brian’s experience in the trenches as an engineer and in operations allows him to relate first hand to the talent and hiring needs of AdAstra's clients.

Seyka Mejeur

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Founder, CEO, Advisor | Space, Clean Tech & Defense Talent Expert | Pilot | Wife | Mom
(titles not in order of importance)

Relentlessly resourceful and unusually optimistic, Seyka is deeply involved with world-changing startups. As a founder and CEO of AdAstra Talent Advisors, she builds thriving teams in NewSpace, Clean Tech, and Defense - empowering innovation that future generations depend on.

With a passion for relationships and a belief in the power of empowered teams, she helps visionary leaders turn bold ideas into reality.

Justus Kilian

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Justus is a Partner at Space Capital, a seed-stage venture firm investing in space-based infrastructure and their applications. Portfolio companies include SpaceX, Impulse Space, Varda, and Xona. He is active on multiple portfolio company boards and manages the firm’s recruiting platform, Space Talent. Before his current roles, Justus worked at Acumen, a $250M early-stage venture firm investing across East Africa and South Asia supporting over 50 companies through growth, turnaround, and exit.

Matthew Gjertsen

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Matt Gjertsen is the founder of BUILT, a leadership development company that focuses on turning great engineers into great managers. Prior to starting his own company, Matt spent five years as the head of Training & Development at SpaceX, and 10 years training future military leaders as an Instructor Pilot in the U.S. Air Force. He and his team are on a mission to help train better managers that build better companies, to create a better world.