The Rule of 40 is the SaaS heuristic stating that revenue growth rate plus profit margin should be 40% or more. The metric provides a single number balancing growth (which drives valuation but costs cash) and profitability (which signals capital efficiency). It is widely used by SaaS investors as a quick health check at growth and scale-up companies, with the underlying logic being that companies should either grow fast enough to justify burn (high growth + negative profit OK) or be profitable enough to justify slower growth (modest growth + positive profit OK). It is a useful directional metric and one frequently misapplied at early-stage where the math doesn't work yet.
The calculation:
Basic formula:
A vision statement is the articulation of the future state the company is working to create, typically 5-20 years out. It provides direction for strategic decisions and inspiration for the team. The vision sits alongside but distinct from the mission statement (which describes what the company does now). Vision statements are often more aspirational and abstract than mission statements (which should be concrete and present-tense). The rare good vision statements paint a specific enough picture of the future that they actually guide long-term strategic choices. It is one of the higher-leverage documents at company founding when written well and one of the most-skipped or most-generic when written poorly.
The components of a ...
A Certificate of Good Standing is the state-issued document confirming a corporation or LLC is properly registered, current on filings, and authorized to do business. Also called a Certificate of Existence, Certificate of Status, or Certificate of Authorization depending on the state, it is commonly required during fundraising due diligence, M&A processes, foreign qualification in additional states, opening business bank accounts, and certain commercial contracts where counterparties want to verify the entity is in good standing. It is the "proof of compliance" document that surfaces during transactions and reveals any administrative debt the company has accumulated.
The basics: each state's Secretary of St...
Series B funding is a growth-stage equity round raised to scale a business that has already proven its model. The round expands the team, market reach, sales capacity, and revenue engine, with investors focused on growth efficiency and a clear path to market leadership rather than on finding product-market fit (which should already be established). It's where the focus shifts from "find what works" to "scale what works."
The 2025 benchmarks (Carta and PitchBook):
| Metric | 2025 typical range | Notes |
|---|---|---|
| Round size | $30M-$40M | $40M-$80M for hot sectors or larger ARR companies |
| Post-money valuation | $120M-$160M (median ~$135M) | Down from $200M+ peaks in 2021 |
| Pre-money valuation | $90M-$130M | After pool refresh |
| Founder dilution | 15... |
Jobs To Be Done (JTBD) is a customer-research framework focused on the underlying job a customer hires a product to do, not demographics or features. The job covers the functional progress the customer is trying to make plus the emotional and social dimensions. The central thesis is that people don't buy products, they hire products to make progress in their lives. It was popularized by Harvard Business School professor Clayton Christensen in The Innovator's Solution (2003) and Competing Against Luck (2016), drawing on earlier work by Anthony Ulwick (Outcome-Driven Innovation, ODI).
The canonical illustration is the milkshake story from Christensen's research with a fast-food chain: the chain wanted to sell more milkshakes a...
A Stock Purchase Agreement (SPA) is the principal closing document in a priced equity financing, governing the sale and purchase of newly-issued preferred stock. It contains the financing terms (share count, price, closing date), the company's representations and warranties to investors, the conditions that must be satisfied before closing, the indemnification structure if reps prove untrue, and the closing mechanics. It is the "definitive document" of the priced round, accompanied by the certificate of incorporation amendment, the Investor Rights Agreement, the Voting Agreement, and the Right of First Refusal and Co-Sale Agreement (ROFR/Co-Sale).
The standard content of a Stock Purchase Agreement:
Product analytics is the measurement and analysis of user behavior within a product, used to understand engagement, identify friction, and inform roadmap decisions. It captures events (clicks, page views, feature usage), user properties (segments, tenure, plan tier), and funnels (multi-step journeys) through tools like Mixpanel, Amplitude, PostHog, and Heap. It is a foundational discipline for product-led companies and increasingly standard across modern SaaS. It is distinct from marketing analytics (acquisition channels) and from business intelligence (financial and operational metrics).
The core capabilities:
Event tracking: capture user actions (signup, feature use, button clicks, page views).
User identification: tie e...
A Delaware C-Corporation is a C-corp incorporated in the State of Delaware regardless of where the company actually operates. It is the default structure for venture-backed US startups because of Delaware's mature corporate-law jurisprudence, specialized Court of Chancery for business disputes, predictable case law that investors and acquirers understand, and the resulting near-universal investor preference that makes it the de facto standard for any company planning to raise institutional capital. Approximately two-thirds of Fortune 500 companies and the overwhelming majority of venture-backed startups are Delaware-incorporated, even when no operations occur in Delaware.
The structural reasons Delaware became the standard: ...
A user story is a short feature description from the user's perspective using the "As a [user], I want [goal], so that [benefit]" template. It is used in agile planning to keep features grounded in customer value rather than implementation detail, and is typically accompanied by acceptance criteria that define what "done" means for the story. The format was popularized by Kent Beck and the Extreme Programming community in the late 1990s and became the dominant unit of work in Scrum and other agile frameworks.
The canonical structure has three slots: As a (the role or persona), I want (the goal or capability), so that (the benefit or business value). Example: "As a logged-in customer, I want to save items to a wishlist, so that I ...
Representations and warranties are contractual statements made by the seller in an acquisition definitive agreement about the state of the business. Also called R&W or "reps and warranties," they describe the business at signing and closing, with breach triggering indemnification obligations to the other party. Buyers also give some reps, though to a lesser extent. R&W are typically the largest single section in a definitive agreement by page count and one of the most-negotiated. They are the seller's commitment that what the buyer thinks they're buying is what they're actually buying.
The major categories of seller reps in a typical M&A deal: organizational (the company exists, is in good stand...