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Angel investor

As explained in Tech Startup Toolkit

An angel investor is an individual or informal investor group that provides capital to an early-stage startup, typically in exchange for equity or equivalent financial rights.

An angel investor puts personal money into an early-stage startup, usually before venture capital arrives. Angels may invest alone, through a loose group, or through a group fund. They can be current or former entrepreneurs, and their faster, less formal decisions can make them useful when a young company needs its first outside capital or a bridge to a later round. section 5.2 section 6.1

Angel money commonly fits the gap between an unproven startup and a larger VC round. A round may be priced equity, though that is less common, or debt through convertible notes. Because angels invest early and take substantial risk, a bridge can offer a discount on the price paid in the next VC financing. section 6.1 section 5.2

When approaching angels, make the pitch short and make these points easy to trust:

  • Lead with genuine passion, drive, and the personal reason for building the company; angels are investing their own money and must want to back the founder. section 6.5
  • State the business purpose plainly: the customer, the important problem, and why the team is qualified to solve it. section 6.5
  • Describe the commercial opportunity, serviceable addressable market, market trends, and competition; never claim there is no competition. section 6.5
  • Show traction where possible, while recognizing that angels expect major uncertainties such as product-market fit or the final business model to remain unresolved. section 6.4 section 6.5

Building a meaningful angel round

A single large angel group might yield 15 investors at $25,000 each, or $375,000. Repeating that result with three groups can exceed $1 million—enough, in the stated example, to support a five-person company with a $75,000 monthly burn rate for about 15 months. This illustrates why many small individual checks can add up to real runway. section 6.1

Table 5.1 The who, what, and when of the various stages of venture capital financing rounds
Round
Pre-seed
Seed
Series A
Series B
Series C
Form
Cash or debt
Equity
Preferred “A” equity
Preferred “B” equity
Preferred “C” equity
Who
Founders Friends and family
Venture capitalists Angels
Venture capitalists Corporate
Venture capitalists Private equity Corporate
Private equity Corporate
What
Early working capital to get to first financing
First formal financing round after formation from investors focused on early-stage investing
First significant financing round in which one or more VCs become involved in a company previously financed by founders, seed VCs, and/or angels
Scaling round when the company has proven it is able to grow fast
Management and investors are contemplating an exit and need to prepare and raise the value of the company in preparation.
When
Immediately upon formation
When they agree with and buy into your “story” of opportunity
Once proof of product-market fit is shown (typically three paying customers)
When sales and marketing are what is needed to grow
When the company is contemplating an exit
Size
$100,000 to $750,000
$1 million to $2 million
$2 million to $10 million
$10 million to $25 million
$25 million and up

Compare angels with founders, friends and family, venture capitalists, corporate investors, and private equity across pre-seed through Series C financing. section 5.2

The practical takeaway: treat angels as a serious financing option, not a consolation prize. They can be the first organized investors in a startup and can provide a bridge when cash is running low but progress is not yet strong enough for the next major round. section 6.6

How Tech Startup Toolkit covers it

How deep it goes
Defines angel structures and financing forms, then gives practical fundraising scale and pitch guidance without detailed valuation mechanics.
Examples
Uses a 15-investor, $25,000-per-check angel-group scenario to show how three groups can raise more than $1 million.
What it assumes
Introduces angels and financing forms from zero while assuming a startup is preparing to seek outside funding.
What you can do after
Apply it via an angel pitch by framing founder credibility, business purpose, opportunity, competition, and traction for early-stage investors.
How it connects
Connects angels to seed rounds, venture capital, priced rounds, convertible notes, product-market fit, market traction, and serviceable addressable market.

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This explainer was generated by Manning's knowledge graph from the text of Tech Startup Toolkit. The section links point to the parts of the book it draws on.