Startup Glossary: Essential Terms for Founders and Investors

An individual who invests personal capital in early-stage startups, usually in exchange for equity. They often provide expertise and connections in addition to funding.

The first institutional round of funding for a startup, used to validate the product, business model, and initial customer base.

Successive funding rounds. Series A focuses on scaling the product and proving growth. Series B supports expansion and team growth. Series C and beyond fund market consolidation, new products, or international expansion.

Ownership interest in a company, represented by shares.

The estimated market value of a startup, used to determine how much equity is exchanged for investment.

A debt instrument that converts into equity in a future round, usually at a discount or with special terms.

An agreement giving investors the right to receive equity in future financing rounds without interest or maturity like a convertible note.

A record of the ownership structure of a startup, showing how equity is distributed among founders, investors, employees, and option pools.

A system that distributes equity over time to founders or employees, encouraging long-term commitment.

The reduction of a shareholder's ownership percentage after new shares are issued in subsequent funding rounds.

A liquidity event in which founders and investors realize returns, such as through an acquisition, merger, or IPO.

When a company offers its shares to the public for the first time through a stock exchange.

A concise presentation designed to communicate the startup's value proposition, often targeting investors.

A slide deck that accompanies the pitch, covering problem, solution, market, business model, traction, team, and fundraising plan.

An event, often run by accelerators, where startups present pitches to potential investors.

A series of presentations founders give to investors in different locations, often before a funding round or IPO.

A very short pitch, typically 30–60 seconds, that summarizes the startup's value proposition.

The simplest version of a product that solves the core problem and allows hypothesis testing with real users.

The stage where a product satisfies strong market demand, reflected in organic growth and customer retention.

A fictional profile representing the ideal customer, based on research and real user behavior.

Evidence that the market is responding to the product, measured by metrics such as active users, revenue, or engagement.

The amount of cash a startup spends each month.

The length of time a startup can operate before running out of cash, based on burn rate.

A plan outlining how a company will launch and distribute its product, including target audience, channels, and positioning.

The ability of a business to grow revenue without costs increasing at the same rate.

A partner who creates the company alongside one or more founders.

Core executive roles leading strategy, technology, marketing, and operations respectively.

Experts who provide guidance, market knowledge, and connections, sometimes in exchange for equity.

The strategic and cultural alignment of the founding and operational team.

A program that grants employees the option to acquire company shares, aligning long-term incentives.

The average cost of acquiring a new customer, including marketing and sales expenses.

The net revenue a customer generates over their entire relationship with the company.

The percentage of customers who cancel or stop using the service over a period of time.

Creative, data-driven tactics used to drive rapid user or revenue growth.

The percentage of users who complete a desired action, such as making a purchase or signing up.

A measure of how many additional users each existing user brings in, indicating organic growth potential.

A customer satisfaction metric that measures the likelihood of recommending the product to others.

A set of rules that enables integration between different software systems.

A test version of a product released to a limited group of users to gather feedback and identify bugs before the official launch.

The combination of programming languages, frameworks, and tools used to build a product.

Backend refers to server-side operations and databases, while frontend is the user-facing interface.

The use of remote servers and services to host, scale, and maintain systems without dedicated infrastructure.

Software with publicly available code that can be used, modified, and distributed freely.

The process or platforms designed to connect entrepreneurs seeking complementary co-founders.

A community formed by past participants of accelerators, universities, or programs, valuable for networking and support.

An open Q&A session with a founder, mentor, or expert.

Online discussions where mentors provide direct advice and feedback to entrepreneurs.

In-person or virtual gatherings focused on building professional connections and partnerships.

The process of legally forming a company.

A preliminary document summarizing the main terms of an investment before detailed contracts are signed.

The thorough review of a company's financial, legal, and operational details before investment or acquisition.

The initial period in a vesting schedule during which no equity is granted. After the cliff, the first portion of equity is granted, and the remainder vests gradually.

Contractual clauses protecting shareholders in case of a company sale.

A measurable indicator used to track performance in specific areas of the business.

The percentage of return gained compared to the capital invested.

Predictable monthly revenue, common in subscription-based models.

Predictable yearly revenue.

The analysis of revenue and costs per customer or unit, used to evaluate sustainability.

A method of analyzing customer behavior by grouping users who joined during the same period.

Building a company using personal resources without external funding.

Programs that provide support, mentorship, and sometimes funding to startups at different stages.

Raising capital from a large number of small investors in exchange for equity.

A strategic change in product, target market, or business model based on market feedback.

An innovation that significantly changes or replaces existing market solutions.

A startup valued at over $1 billion.

A startup valued at over $10 billion.

A funding round with a lower valuation than the previous one, often signaling challenges in growth or performance.