A Diverse Range of Midstage Tech Veterans

All tech founders need a trusted guide - from navigating hyper growth stages to keeping momentum during intense changes in the market


Roland Siebelink is one of the few people in the world to have experienced 3 exponential tech growth stories from the inside. From Telenet in Belgium in the 1990s to Bluewin in Switzerland in the 2000s and Rocket Fuel in California in the 2010s, each company grew from ~10 to ~1000 people in ~3 years. After seeing what made founders succeed and fail up close 3 times, and with 3 startups of his own under his belt, Roland made it his mission to carry new founders through these tricky growth phases. Having coached founders informally for over 20 years, in 2016 he founded Scaleup Allies as the premier coaching and facilitation boutique for mid-stage tech startups.

Roland holds an MBA from IMD, a Gazelles Scaling Up Coach certification and is a landslide winner of the Silicon Valley Founder Showcase. He has authored several books, among which Scaling Silicon Valley Style and the upcoming Leading your Startup through CRISIS. He hosts the Silicon Valley Momentum podcast and is a Member of the National Speakers Association.

Roland is based in California and coaches coaches (and select clients) in English, Dutch, German and French.

Anna Samios 🇦🇺🇬🇷 Coach


Anna Samios works with mid-market leadership teams who are ambitious, driven by excellence and have a strong desire to grow their people and companies.

With over 25 years of hands-on experience in the strategic and execution space, from the big end of town through to multi-generational, privately-held family businesses, Anna knows how to guide executives to successfully & sustainably compete and succeed. Anna’s unique and authentic style shines through her cutting-edge, practical delivery.

She has worked with over 240 Australian companies and has deep insights on the parallels between scaling up leadership team coaching and high performance athletes.

Anna is married to a great guy and a mother of 3 gorgeous kids. As well as a Hairy Maclary dog. She is based in Sydney, NSW, Australia and coaches clients in English and Greek.

Ken Sandy 🇺🇸🇦🇺🇪🇺🏳️‍🌈 Product/Innovation Coach

Ken Sandy

Ken Sandy has led technology product management teams for over 20 years in the San Francisco Bay Area. He is an industry fellow and lecturer at the Sutardja Center for Entrepreneurship and Technology at the University of California, Berkeley where he pioneered and teaches the first product management course offered in the engineering school.

His work draws on leading teams at fast-growth, early-stage companies as well as at larger companies attempting digital transformation amidst industry disruption where he consistently defined, launched and managed award-winning web and mobile products loved by customers and used by millions of users across 60+ countries.

He is an executive consultant and active mentor and advisor for startup and scale-up companies in the US, Canada and Europe, and a regular speaker at leading product management conferences. In his early career Ken was a consultant at leading management consulting firm, McKinsey & Co. He is an alum of Melbourne University, where he received his Bachelors in Engineering and Bachelors in Computer Science (Honors).

Ken is based in the San Francisco Bay Area and coaches clients around the world in English.

Mike Dias 🇵🇹🇬🇧🇩🇰🇪🇸 Coach

Mike Diaz

Mike’s approach focuses on world class leadership, contrarian culture of execution and radical focus. Mike brings 15+ years coaching VC backed hyper growth tech and large enterprise CEOs/leaders. Working across Europe, Asia, Africa and the Americas, he brings a unique global cultural understanding. Mike started 2 companies from scratch, after being a professional CEO.

He is a master of OKRs, Scaling Up, EOS, Balanced Scorecard, Business Model Canvas, among other tools. Mike is also the host of the ScaleUpValley podcast show.

Mike is based in Portugal and coaches clients in English, Portuguese and Spanish.

Stacy Eads 🇺🇸🇨🇦 Coach

Stacy Eads

Stacy Eads is one of Oklahoma’s 50 Women Making a Difference. As a Most Admired CEO in her home state of Oklahoma, she is now empowering other CEOs nationwide to embrace their leadership potential. As an International Business coach, Mrs. Eads actively facilitates annual planning retreats to propel $1 million - $100 million dollar companies toward rapidly scalable growth in the U.S. and Canada. She serves on the Better Business Bureau of Central Oklahoma Board of Directors and as a TEDx OKC Speaker Coach. Her talent is in high demand to CEO Coach, Train Teams, and Speak at Events.

Before becoming an Internationally-Certified Scaling Up Business Coach, Stacy Eads was a CEO Woman in Tech for the last decade who utilized the Scaling Up tools to grow her team. She’s quite literally walked a mile in your shoes. Now, as a coach serving other CEO’s on the same journey, she’s uniquely positioned to understand your Scaling Up challenges. Over her 20+ year experience in software, websites, online marketing, public relations, operations, and HR, Stacy was awarded by the North America Business Excellence Forum, International Torch Ethics, President’s Club, Toastmasters, Innovator of the Year, Woman of the Year, 50 Women Making a Difference, Circle of Excellence, Associated Press, Best Overall Company, Top Customer Service, PRSA, and dozens more.

Stacy is based in Oklahoma and coaches clients in English.

Martin Feuz 🇨🇭🇬🇧🇩🇪🇮🇹 Coach


Martin brings 20 years of experience in product development, customer experience design, business analysis and consulting. This hybrid background allows him to understand the challenges of organisations and successfully integrate business goals with user needs.

He has been educated internationally in business management, design research and digital innovation, with a PhD on medical decision support from Goldsmiths, University of London.

Martin is based in Switzerland and coaches clients in German, English and French.

Diana Southall 🇺🇸🇨🇦 Coach


Diana is a fifth-generation entrepreneur who grew up in a family business. She personally experienced the highs and lows of running a growing business, and challenges with people, cash and execution.

For over 20 years, Diana has been a trusted strategic partner to leaders of growing small and mid-sized organizations in the Western New York area and around the Great Lakes.

Diana has been told that she combines a talent for asking the right questions, distilling complex information into action plans, and focusing in on the right data and metrics. Her clients appreciate her enthusiasm for their business and a bias for action, so they find clarity, focus and build the habits for disciplined implementation.

She is the proud parent of two wonderful school-aged children, and enjoys skiing, sailing, rowing, kayaking, inline and ice skating.

Diana is based in upstate New York and coaches clients in English.

Back office

The Midstage Institue has a solid back office ensuring coaches can stay focused on coaching, building tools for coaches and clients and ensuring potential clients know about us.

  • Heather 🇺🇸 Head of Finance
  • Rani 🇧🇷🇺🇸🇩🇪🇮🇹 Head of Outreach
  • Chuck 🇺🇸🇦🇺🇵🇭 Head of Production
  • Bryan 🇺🇸 Head Copy Writer
  • Farzam 🇵🇰 Head Developer

About Midstage Institute

We focus our practice on midstage startup companies that need to remain agile, and where what used to work for the smaller startup just isn’t as effective anymore.


We ensure founders and leadership teams win, with our over 40 years experience in venture-backed tech startups. We are Silicon Valley veterans with the scars and wins to prove it. We don’t use an inflexible off-the shelf methodology, we adapt best practices to you, your market, your company, and your leadership team.


We always:

  • Focus on right sized best practices to get to the next level
  • Focus on the 20% of effort that will yield you 80% of the benefits
  • Teach Perfection is the enemy, better is your partner and ally
  • Align with your business needs so you can thrive