INVESTOR NOTES / 001ANGEL INVESTOR / San Francisco, United States
Michael Seibel
KNOW THE INVESTOR. SHARPEN THE PITCH.

Angel investor · San Francisco, United States

Michael Seibel.

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 PATTERN2015–2026
52%

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

First investment stage across 29 companies15 Seed, 0 Angel and 14 other-stage entries. Each dot represents one company.
Seed 15Angel 0Other 14

One dot = one company at first recorded investment.

29 companies · 31 recorded equity rounds
Dataset’s latest round 22 May 2026/Latest recorded investment 20 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

Michael Seibel has dated investments in 29 companies. 15 first entries were at Angel, Pre-Seed or Seed (51.7%). An early-stage founder can use the sector and stage filters to find comparable companies before approaching the investor.

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02

Separate activity from reputation

1 first company relationships appear in the latest 24 months, compared with 8 in the preceding window. The latest recorded investment is 2025-02-20. This describes observed activity through 2026-05-22; it does not establish current availability.

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03

Plan the next financing step

6 of 28 companies with a full 24-month observation window raised another equity round. This investor backed 0 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

FinTech is the largest displayed sector by company count, appearing in 10 portfolio companies; sector tags overlap. 1 first entries carry a recorded lead flag and the median first-round syndicate includes 9 other named backers. Shared rounds are evidence of co-investment, not evidence of an introduction route.

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01 / THE READOUT

Four signals before you pitch.

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

01 — ROUND CONTEXT
$3.1M–$14M

The middle half of entry rounds

25th–75th percentile across 27 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 8 in the preceding 24 months.

See the rhythm ↗
03 — NEXT FINANCING
21%

Another equity round within 24 months

6 of 28 companies with a full observation window. The next round can include any investor.

Follow the path ↗
04 — REPEAT BACKING
0%

This investor invested again within 24 months

0 of the same 28 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.

29matching companies
$6.5Mmedian first round (27 disclosed)
1first backed in last 24 months

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

Seed

CTGT ↗

It mitigates AI risks and maximizes AI ROI for enterprises

$7.2M total first round
Series A

Superorder ↗

Platform offering restaurant management solutions

$10M total first round
Seed

Awesomic ↗

Platform offering IT outsourcing solutions

$800K 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
FinTech10
B2C E-Commerce4
Artificial Intelligence3
HRTech3
Product Management Tools2
CFO Stack2
Finance & Accounting Tech2
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
Seed13 disclosed
$3.0M$1.8M–$5.0M
Series A11 disclosed
$10M$6.7M–$24M
Series B1 disclosed
$40M$40M–$40M
$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.

28
companies with 24 months
of observable history

Raised another equity round

Any investor · within 24 months
21.4%
6 of 28 companies

Backed again by this investor

A subset of the companies above
0%
0 of 28 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
Seed144 / 140 / 14
Series A111 / 110 / 11
Series B10 / 10 / 1
Series C21 / 20 / 2
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
FIRM

Y Combinator

11 shared rounds · 11 companies

Latest shared round Feb 2025
02
ANGEL

Emmett Shear ↗

4 shared rounds · 4 companies

Latest shared round Dec 2022
03
FIRM

FundersClub

4 shared rounds · 4 companies

Latest shared round Apr 2017
04
FIRM

Initialized Capital

4 shared rounds · 4 companies

Latest shared round Aug 2022
05
ANGEL

Justin Kan ↗

4 shared rounds · 4 companies

Latest shared round Dec 2017

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.

29 dated companies
Complete dated portfolio, ordered by first investment, newest first.
CompanyFirst backedEntry stageTotal entry roundSame investor again?
CTGT ↗San Francisco
Feb 2025Seed$7.2MNo later round recorded
Superorder ↗New York City
Sep 2023Series A$10MNo later round recorded
Mar 2023Seed$800KNo later round recorded
Artifact ↗San Francisco
Dec 2022Seed$5.0MNo later round recorded
Golden ↗San Francisco
Oct 2022Series B$40MNo later round recorded
GiveCampus ↗Washington, Dc
Sep 2022Series A$50MNo later round recorded
Fazz ↗Jakarta
Sep 2022Series C$75MNo later round recorded
Arena ↗New York City
Aug 2022Series A$32MNo later round recorded
Promoted.ai ↗San Francisco
Jul 2022Seed$6.0MNo later round recorded
Feb 2022Series C$30MNo later round recorded
Jan 2022Series A$17MNo later round recorded
Float ↗San Francisco
Jan 2022Seed$7.0MNo later round recorded
Homebase ↗Ho Chi Minh City
Nov 2021Series A$30MNo later round recorded
Oct 2021Series A$7.2MNo later round recorded
Jun 2020SeedUndisclosedNo later round recorded
Facio ↗Pinheiros
Jun 2020Series A$7.0MNo later round recorded
PeerWell ↗San Francisco
Aug 2019Series A$6.5MNo later round recorded
Mar 2019Series A$5.9MNo later round recorded
RankScience ↗Spanish Fork
Oct 2018Seed$1.8MNo later round recorded
ScopeAI ↗San Francisco
Mar 2018SeedUndisclosedNo later round recorded
Burrow ↗New York City
Dec 2017Seed$4.3MYes · Feb 2021
Dec 2017Seed$1.8MYes · Jul 2020
WaystoCap ↗Casablanca
Jun 2017Seed$3.0MNo later round recorded
Riley ↗New York City
Apr 2017Series A$3.1MNo later round recorded
Dec 2016Seed$1.3MNo later round recorded
Scentbird ↗New York City
Mar 2016Seed$2.8MNo later round recorded
Human Interest ↗San Francisco
Feb 2016Seed$3.5MNo later round recorded
Bluesmart ↗New York City
Oct 2015Series A$12MNo later round recorded
Triplebyte ↗San Francisco
Sep 2015Seed$3.0MNo later round recorded
0 more companies have undated investments

Kept in the 29-company portfolio; excluded from entry-timing calculations.

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