INVESTOR NOTES / 001ANGEL INVESTOR / Corte Madera, United States
KNOW THE INVESTOR. SHARPEN THE PITCH.

Angel investor · Corte Madera, United States

Dick Costolo.

Recorded investments.
A clearer sense of fit.

Find where your company fits, how rounds are assembled, and what happened after the first investment.

THE ENTRY PATTERN2007–2026
31%

of dated first investments
were at Angel, Pre-Seed or Seed

First investment stage across 26 companies8 Seed, 0 Angel and 18 other-stage entries. Each dot represents one company.
Seed 8Angel 0Other 18

One dot = one company at first recorded investment.

26 companies · 30 recorded equity rounds
Dataset’s latest round 22 May 2026/Latest recorded investment 19 Feb 2025
THE FOUNDER’S BRIEF

Read the pattern before the pitch.

Written insights from the recorded portfolio, with the evidence linked below.

01

Start with the first entry

Dick Costolo has dated investments in 26 companies. 8 first entries were at Angel, Pre-Seed or Seed (30.8%). An early-stage founder can use the sector and stage filters to find comparable companies before approaching the investor.

Explore the evidence ↗
02

Separate activity from reputation

1 first company relationships appear in the latest 24 months, compared with 1 in the preceding window. The latest recorded investment is 2025-02-19. This describes observed activity through 2026-05-22; it does not establish current availability.

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03

Plan the next financing step

11 of 25 companies with a full 24-month observation window raised another equity round. This investor backed 3 of those companies again within that window. The difference is a reason to research the wider syndicate, rather than assume the same investor will fund the next round.

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04

Use a specific point of relevance

Artificial Intelligence is the largest displayed sector by company count, appearing in 4 portfolio companies; sector tags overlap. 4 first entries carry a recorded lead flag and the median first-round syndicate includes 7 other named backers. Shared rounds are evidence of co-investment, not evidence of an introduction route.

Explore the evidence ↗
01 / THE READOUT

Four signals before you pitch.

Start with observed behavior.
Every rate has a defined denominator.

01 — ROUND CONTEXT
$4.5M–$31M

The middle half of entry rounds

25th–75th percentile across 26 disclosed first rounds. Total round size; the investor’s own cheque is undisclosed.

Size your round ↗
02 — NEW RELATIONSHIPS
1companies

First investments in the last 24 months

22 May 2024–22 May 2026, versus 1 in the preceding 24 months.

See the rhythm ↗
03 — NEXT FINANCING
44%

Another equity round within 24 months

11 of 25 companies with a full observation window. The next round can include any investor.

Follow the path ↗
04 — REPEAT BACKING
12%

This investor invested again within 24 months

3 of the same 25 companies. Build a financing plan around the wider investor market.

Explore co-investors ↗
02 / FIND YOUR FIT

Where does your company sit?

Choose your sector and stage to find
companies he first backed in that space.

YOUR COMPANY

A match means a recorded investment in this category. It does not establish current interest or availability.

26matching companies
$13Mmedian first round (26 disclosed)
1first backed in last 24 months

All sectors · All entry stages. Round amounts are total financing, in USD.

Series C

Baseten Technologies ↗

Platform offering low code based ML powered application development software

$75M total first round
Series A

VendorPM ↗

SaaS-driven vendor bids management software for homeowners

$20M total first round
Series A

Hive Watch ↗

Provider of AI-powered physical security intelligence systems

$20M total first round
Explore matching portfolio companies ↓

The sector × stage map

First investments · companies can appear in more than one sector
Number of first investments by sector and entry stage. Select a cell to explore companies.
SectorSeedSeries ASeries BAll stages
Artificial Intelligence4
B2C E-Commerce4
AI Infrastructure2
FinTech2
HealthTech2
Wearable Technology2
MarketingTech2
03 / ROUND DESIGN

The round around the investor.

Use stage-specific financing ranges
to frame the size of your syndicate.

First-round size, by entry stage

USD · middle 50% and median
Seed8 disclosed
$3.5M$1.9M–$6.9M
Series A10 disclosed
$13M$9.8M–$18M
Series B4 disclosed
$44M$31M–$82M
$10K$100K$1M$10M

Logarithmic scale. A dot marks the median; the band spans the 25th–75th percentiles. These are entire rounds, not individual cheques.

04 / WHAT HAPPENS NEXT

One investment. Two different paths.

A subsequent round and repeat backing
answer different fundraising questions.

25
companies with 24 months
of observable history

Raised another equity round

Any investor · within 24 months
44%
11 of 25 companies

Backed again by this investor

A subset of the companies above
12%
3 of 25 companies
i

Includes first investments on or before 22 May 2024. 1 newer companies and 0 undated histories are excluded. Follow-up stops at the dataset’s latest round on 22 May 2026. These observations do not measure returns or predict a company’s outcome.

See the stage-by-stage denominators +
First stageEligible companiesNext round ≤24 moSame investor again ≤24 mo
Seed83 / 81 / 8
Series A106 / 102 / 10
Series B41 / 40 / 4
Series C31 / 30 / 3
05 / INVESTMENT RHYTHM

New names. Returning relationships.

Separate first investments from later
rounds in companies already backed.

New companiesRepeat rounds

*2026 is partial, through 22 May. Bar height counts first investments + repeat rounds; earlier years are complete calendar periods in this dataset.

06 / THE CO-INVESTOR MAP

Who else belongs on your research list?

Frequent shared rounds suggest a place
to investigate sector and stage alignment.

01
ANGEL

Adam Bain ↗

11 shared rounds · 11 companies

Latest shared round Oct 2021
02
FIRM

01 Advisors

6 shared rounds · 5 companies

Latest shared round Feb 2025
03
FIRM

Founders Fund

4 shared rounds · 3 companies

Latest shared round Aug 2021
04
ANGEL

Lachy Groom ↗

3 shared rounds · 3 companies

Latest shared round Feb 2025
05
FIRM

Accel

2 shared rounds · 2 companies

Latest shared round Sep 2023
06
ANGEL

Anthony Noto ↗

2 shared rounds · 2 companies

Latest shared round Sep 2021

Shared rounds establish recorded co-investment. They do not establish a personal connection, introduction route, or current willingness to invest.

07 / THE EVIDENCE

Explore the portfolio.

First investment comes first.
Amounts refer to that entry round.

26 dated companies
Complete dated portfolio, ordered by first investment, newest first.
CompanyFirst backedEntry stageTotal entry roundSame investor again?
Feb 2025Series C$75MNo later round recorded
Aug 2022Series A$20MNo later round recorded
Hive Watch ↗Los Angeles
Oct 2021Series A$20MNo later round recorded
Lendtable ↗San Francisco
Sep 2021Series A$19MNo later round recorded
Origin ↗San Francisco
Aug 2021Series B$56MNo later round recorded
Price ↗San Francisco
Mar 2021Seed$10MNo later round recorded
Feb 2021Series C$40MNo later round recorded
Linear ↗San Francisco
Dec 2020Series A$13MYes · Sep 2023
Levels ↗United States
Nov 2020Seed$12MNo later round recorded
Sep 2020Series A$16MYes · Mar 2021
Split ↗Redwood City
Aug 2020Series C$33MNo later round recorded
Jul 2020Series B$31MNo later round recorded
dot.LA ↗Santa Monica
Jan 2020Seed$4.0MNo later round recorded
Digits ↗San Francisco
Nov 2019Series A$11MNo later round recorded
Literati ↗Del Valle
Oct 2019Series A$12MYes · Jan 2021
PlayVS ↗Santa Monica
Sep 2019Series C$50MNo later round recorded
Lyric ↗San Francisco
Apr 2019Series B$160MNo later round recorded
Oct 2018Seed$3.0MNo later round recorded
Hipcamp ↗San Francisco
Jun 2018Series A$9.5MNo later round recorded
Rival ↗Los Angeles
May 2018Series B$30MNo later round recorded
Jun 2017Seed$1.6MNo later round recorded
HaptX ↗San Luis Obispo
Dec 2016Seed$5.8MYes · Mar 2017
Jun 2016Seed$1.2MNo later round recorded
Tock ↗Chicago
Dec 2014Seed$2.0MNo later round recorded
X
Jul 2007Series A$100KNo later round recorded
X ↗Bastrop
Jul 2007Series A$100KNo later round recorded
0 more companies have undated investments

Kept in the 26-company portfolio; excluded from entry-timing calculations.

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