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Brad Flora

Group Partner, Y Combinator · 8 appearances on the record.

computed by AI from the episodes · how this works → · full disclaimer →

investorfounderhostjournalist@bradflora ↗LinkedIn ↗bradflora.com ↗Wikipedia ↗

Flora co-founded and served as CEO of the ad retargeting startup Perfect Audience, which was acquired by Marin Software in 2014. Today, he is a Group Partner at Y Combinator and actively invests in early-stage startups.

27statements → 8claims → 6claims resolved → 83%fully supported → 3.89/5average certainty → 2.04/5average debate potential → 6said about them ↓

5 supported 0 partly supported 1 contradicted 2 not checkable as stated how the 8 claims stand · each chip opens the sources

8 assertions · 3 opinions · 14 insights · 2 disclosures · every statement was checked. The predictions and assertions are the 8 claims: statements the public record can support or contradict. 6 are resolved, and 2 name no date, number or outcome precise enough to check. Everything else (opinions, insights, what ifs, disclosures) can never be settled by the record, so it carries no assessment.

The record, in short

What the tape says about how Brad argues and how the claims held up. Everything they said, and everything said about them, is in the tabs below.

Their most notable supported claim

Assertion Supported
PostHog raises a $75M Series E at a $1.4B valuation
“James is here hot off the news of raising a seventy-five million Series E round of funding at a 1.4 billion dollar valuation, making PostHog the latest YC unicorn.”
Brad Flora Dec 10, 2025 ▶ 0:10 From Pivot Hell To $1.4 Billion Unicorn · Y Combinator

Their most notable contradicted claim

Assertion Contradicted
PostHog had the most upvoted Hacker News dev tool launch of 2020
“I pull up the post hoc slide every now and then, and I believe according to the slide, and I think it's true, it was the most upvoted dev tool hacker news post of the year.”
Brad Flora Dec 10, 2025 ▶ 12:25 From Pivot Hell To $1.4 Billion Unicorn · Y Combinator

Expressed certainty vs assessment result

none yet certainty 1
none yet certainty 2
0% certainty 3
100% certainty 4
none yet certainty 5

weighted support: a fully supported claim counts one, a partly supported claim counts half. Each filled bar is clickable and opens exactly those claims; "none yet" means nothing said at that certainty level has resolved yet

How they sound: not measured why? →

We measure speaking style by listening to the audio itself, and a fair number needs at least 2,000 words from one person on tape we have measured. There is too little of Brad Flora on measured tape to publish a rate. This says nothing about how they speak.

Everything Brad Flora said on the Y Combinator Startup Podcast that made the record, most notable first. Filter by type, assessment or year in the ledger →

Assertion Supported
Flora: Solugen made $10K monthly selling hydrogen peroxide to hot tubs
“Turned out that hot tub supply stores Needed hydrogen peroxide to sell to people that had hot tubs, and so they were making 10,000 dollars a month selling hydrogen peroxide to hot tub supply stores.”
Brad Flora Mar 29, 2023 ▶ 9:18 How Startup Fundraising Works | Startup School · Y Combinator
Assertion Not checkable as stated
Flora: nVision founder Surbhi Sarna faced over 50 investor rejections initially
“She was rejected more than 50 times by investors to just get the first money for the company.”
Brad Flora Mar 29, 2023 ▶ 24:15 How Startup Fundraising Works | Startup School · Y Combinator
Disclosure
Facebook's Custom Audiences Launch Pushed Perfect Audience to Sell
“When Facebook announced that they were going to launch custom audiences and sell this themselves directly, Facebook was now a competitor And they own the platform. They wrote all the code. They control pricing. So that's a time when you should worry about comp…”
Brad Flora Apr 8, 2022 ▶ 11:02 How To Compete With Amazon and Google · Y Combinator

The other half of the tape: Brad Flora's own voice is left out of every number here. Other people bring the name up 6 times in 3 episodes on the Y Combinator Startup Podcast. every mention, with the transcript →

Who brings them up most Garry Tan 1Diana Hu 1

Every mention by year

tap a year for its mentions
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012202220232024episodes it came up in
002142202220232024episodesmentions per episode
2024 2 mentions in 2 episodes 1 per episode
2022 4 mentions in 1 episode

Appearances (8)

EpisodeDateSpeaking time
From Pivot Hell To $1.4 Billion Unicorn · Y Combinator Dec 10, 2025 8m
Startup Advice: AI GTM, Pivoting & How To Hire · Y Combinator Oct 21, 2025 9m
The Right (And Wrong) Way To Spend Money At Your Startup · Y Combinator Feb 12, 2025 8m
Startup Experts Discuss Doing Things That Don't Scale · Y Combinator May 30, 2024 3m
How Startup Fundraising Works | Startup School · Y Combinator Mar 29, 2023 25m
Advantages Of A First-Time Founder · Y Combinator Sep 15, 2022 5m
Investors Said No, Now What? · Y Combinator Apr 29, 2022 4m
How To Compete With Amazon and Google · Y Combinator Apr 8, 2022 3m
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