Definition:
A startup is an early-stage company or organisation seeking to develop a repeatable and scalable business model under conditions of uncertainty. It is still testing essential aspects such as the problem it addresses, its intended customers, how it will generate revenue and the resources required for growth.
The term does not simply mean a new business. A startup generally aims to serve a broad market without costs increasing at the same rate as revenue. Technology often facilitates that scale, but not every startup is a technology company or receives venture capital.
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Characteristics of a startup
Startups can operate in many sectors and do not correspond to a single legal form. They are primarily identified by the type of problem they face and their search for a model that has not yet been fully validated.
Common characteristics include:
- Uncertainty: Some assumptions about customers, product, price or channel still need to be tested.
- Scalability: The model is intended to serve more customers without reproducing every cost and resource proportionally.
- Experimentation: The team compares solutions, messages and channels to learn which proposition works.
- Adaptation: The product or model may change when evidence contradicts the original assumptions.
- Growth: Once the proposition has been validated, the organisation seeks to expand its reach sustainably.
Innovation may concern the product, process, distribution, customer experience or revenue model. It does not have to involve previously unseen technology. The central feature is that the company is still seeking a viable and reproducible way to create and capture value.
Difference between a startup and an SME
A startup and a small or medium-sized enterprise may have the same size, revenue or age during their early years. The conceptual difference lies in their model and intended trajectory, not in a universal threshold for employees or income.
An SME may begin with an established model, serve a local market and aim for stable operations from the outset. A startup works with more open assumptions and usually designs its activity to grow across markets or segments. However, an SME can also innovate and a startup can finance itself through its own revenue.
The label is not necessarily permanent. Once the company has a proven model, established processes and an organisation equipped to operate at scale, much of the search phase is over, even if it continues to be described culturally as a startup.
Business model validation
During the early stage, the team turns assumptions into hypotheses that can be observed. It may research the problem, interview users, test a value proposition or release a minimum viable product. The purpose of an MVP is not to publish a poor product, but to learn about the riskiest question with the necessary scope.
The Lean Startup methodology organises this learning through build, measure and learn cycles. It is one approach to managing uncertainty, not a requirement followed by every startup or a synonym for the company itself.
The signals examined depend on the model. In addition to sales or registrations, they may include activation, recurring use, retention, acquisition cost, margin and referral. Pirate metrics group several of these stages, but each company needs to connect them to its product and the decision being made.
Validation does not remove uncertainty. It reduces it and supports a decision to maintain direction, change part of the model or abandon an assumption. Scaling before demand and operating economics have been tested can amplify losses as well as revenue.
Startup funding
Capital requirements vary with the sector, stage and time needed to develop the product. A software project may begin testing with limited resources, whereas a biotechnology, energy or hardware company may require investment before earning revenue.
Common sources include:
- Founders’ resources and revenue: Founders finance development or reinvest the first sales.
- Personal networks and angel investors: Individuals provide capital and, in some cases, experience or contacts.
- Venture capital: Funds invest in exchange for equity when they consider that the company has growth potential.
- Crowdfunding: A campaign raises contributions, pre-orders, loans or investment depending on its structure and regulation.
- Debt, grants and programmes: Loans, grants, incubators and accelerators can cover particular needs under different conditions.
Each route affects control, risk, timing and the company’s obligations. A pitch deck summarises the problem, solution, market, model and evidence when presenting the project, but it does not replace financial documentation or the testing of its assumptions.
A startup may combine several sources or grow without outside investment. Funding is a means of reaching verifiable milestones, not the criterion that defines the company’s success.