Most teams make critical scaling decisions using intiuition or borrowed playbooks. Stage 2 Capital uses this methodology with portfolio founders to guide readiness and data-driven growth.
Written by Mark Roberge—Founding CRO at HubSpot and Co-Founder of Stage 2 Capital—the book translates 25 years of go-to-market research into a practical, stage-specific guide.
PRE-ORDER NOW →
A clear, measurable path through the three sequential stages of scaling:
You’re consistently creating customer value.
You're generating customer success and revenue consistently and profitably.
You're scaling revenue predictably while simultaneously building a sustainable moat around the business.
Drawing on insights from hundreds of startups over the past 25 years, Mark Roberge reveals the five most common reasons revenue acceleration efforts fail:
- Premature focus on top-line revenue over consistent customer value creation
- Inadequate, non-data-driven definitions of product-market fit
- Misunderstanding the GTM capabilities needed before hiring salespeople
- Front-loading sales hires instead of pacing hiring based on readiness
- Confusing temporary spikes with lasting competitive advantage
And because mental health is deeply personal to Mark, 100% of proceeds will be donated to McLean Hospital, a global leader in mental health research and care.

Coming February 3rd, 2026
Be among the first to access the full framework for building predictable, scalable revenue.
- Founders planning their next stage of growth
- GTM leaders responsible for pipeline, hiring, or revenue targets
- Investors guiding teams through PMF and early scale
- Product, Marketing and Sales leaders from large companies entering new markets or launching new products
Essential reading for anyone scaling a business. Mark distills complexity into actionable insights that actually work.
A scientific approach to scaling that founders, investors, and founding CROs can all rally around.
Scaling should be about science, not speculation. Mark gives founders the formula.
Submit the form to get your early access copy of Chapter 1 from The Science of Scaling—the methodology behind today’s most disciplined GTM teams.
Mark Roberge is the creator of the Science of Scaling methodology — a framework used by hundreds of startups to avoid the most common revenue pitfalls and scale more predictably.
As the founding CRO at HubSpot, Mark led the company from $0 to IPO and established one of the most iconic go-to-market playbooks in SaaS. His first book, The Sales Acceleration Formula, became a bestseller by introducing a data-driven, analytical approach to building high-performing sales teams — and is still widely used today.
Today, Mark is the Co-Founder and Managing Partner of Stage 2 Capital, the first venture fund led by a global community of GTM operators. Stage 2 applies the Science of Scaling methodology with its portfolio companies—helping founders measure readiness, pace growth, and scale revenue using their own performance data.
Mark also teaches sales and go-to-market strategy at Harvard Business School, where he continues to refine and expand the frameworks that shape the Science of Scaling.
Practical Scaling Lessons from the Leaders Who’ve Done It
The Science of Scaling podcast breaks down the real mechanics of building a durable, scalable company.
No hype. No shortcuts. Just the frameworks, decisions, and data patterns that help founders grow with confidence
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