Investment Thesis: Strategy, Sectors & Scaling

An investment thesis defines your focus areas and boundaries for investing.

Angel Investors
Published on
July 22, 2025
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Investment Thesis: Overview

  • An investment thesis defines your focus areas and boundaries for investing.
  • It helps investors filter out noise, concentrate efforts, and improve success rates.
  • A basic investment thesis can be framed as a Venn diagram of three elements:
    • Sector/Domain: Industries or verticals you focus on
    • Geography: Where you invest
    • Stage: The maturity of the startups you back

What Drives Investment Decisions?

Sector/Domain

  • Familiarity: Invest in sectors you understand from work, education, or experience.
  • Affinity: Personal values or experiences may influence sector focus (e.g., legal tech).
  • Interest: Past success in a sector (e.g., crypto) can shape future interest.

Geography

  • Early-stage investing is often highly localised.
  • Most angel investors focus on their immediate region (city/state/country).
  • Cross-border investing may occur when there’s a personal or cultural connection (e.g., diaspora ties).

Stage

  • Dictated by check size:
    • Pre-seed to Seed: 4–5 figure checks
    • Seed to Series A: Up to 6-figure checks
    • Series A & beyond: Requires $250K+ to multimillion-dollar checks
  • Investing through syndicates or VC funds can give access to later-stage deals without needing large checks.

AngelSchool.vc Investment Thesis

Sector

  • Focus on B2B technology and software.
    • Software enables fast iteration and traction.
    • Avoids hardware complexity and high upfront costs.
    • Fewer long-term dilution risks due to digital scalability.

Geography

  • Global focus: US, Europe, and Asia.
    • 1300 investors split into regional clusters.
    • US cluster is most active; Europe and Asia clusters are growing.

Stage

  • Primarily invest in Seed to Series A.
    • Occasionally pre-seed with traction.
    • Typical cheque size: $100K (pre-seed) to $1M+ (Series A).

Strategy: Grow investor network to increase cheque size and access later stages (Series B/C).

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