definition

An angel investor is an individual who provides early-stage funding to startups in exchange for equity ownership or convertible debt. Unlike venture capitalists, who typically invest through professional funds, angel investors use their personal wealth to support young companies. 

Their investments often come at a critical stage when startups are too risky for banks or too early for institutional investors.

The term “angel” originally referred to wealthy individuals who funded Broadway productions in the early 20th century. Over time, it was adopted in the business world to describe private backers who take a chance on entrepreneurs with unproven ideas.

Angel investors not only supply capital but also frequently offer mentorship, industry connections, and strategic advice, making them valuable partners for founders navigating the uncertainty of early growth.

In practice, angel investors typically participate in the pre-seed or seed stages, when a startup is developing its first product or seeking to achieve product-market fit.

Typical check sizes range from $25,000 to $250,000, though some “super angels” invest significantly more.

Many angels band together in groups or syndicates, pooling funds to support larger deals while sharing the responsibilities of due diligence.

A well-known example is Jeff Bezos, founder of Amazon, who personally invested in Google in its early days. His backing, along with others, provided the company with vital resources to expand before it became one of the world’s leading tech giants.

This illustrates how angel investments can play a pivotal role in shaping the trajectory of major companies.

Angel investors fill a funding gap between self-financing (bootstrapping) and venture capital. For startups, this kind of financial support can mean survival and acceleration toward product-market fit.

For the broader ecosystem, angel investors stimulate innovation, diversify funding sources, and contribute to job creation and economic growth. Their willingness to take early risks makes them a cornerstone of the startup ecosystem.