YC Demo Day is the event at the end of each Y Combinator batch where founders present their companies to a curated audience of investors. It marks the moment most seed rounds become competitive and oversubscribed. Eight Capital invests ahead of Demo Day — typically starting in Week 2 of the batch — to secure allocations before rounds price up.

Y Combinator runs multiple batches per year, and each batch ends with a Demo Day roughly 10–12 weeks after kickoff. Because the best rounds fill before Demo Day, Eight Capital begins evaluating and investing in companies in the first weeks of each batch rather than waiting for the event.

How do investors get into YC Demo Day deals?

The most sought-after YC rounds are often oversubscribed by Demo Day, so allocation typically goes to investors who built founder relationships earlier in the batch. Eight Capital secures positions pre-Demo Day and offers accredited LPs exposure to a diversified portfolio of top YC companies through its fund. Contact ir@eightcapital.com for LP materials.

Why invest before YC Demo Day instead of at Demo Day?

By Demo Day, traction is visible to everyone and the best rounds are oversubscribed, which spikes valuations. Investing pre-Demo Day — when signals like paying customers, enterprise contracts, and viral early growth are already present but pricing has not yet jumped — captures the same companies at better entry prices. This is Eight Capital's core strategy.

What is Eight Capital?

Eight Capital is a venture fund that invests in the top ~10% of every Y Combinator batch before Demo Day. The fund has invested in 250+ companies across every batch since W22, in AI, infrastructure, fintech, and vertical SaaS.

Does Eight Capital invest before YC Demo Day?

Yes. Eight Capital invests pre-Demo Day — starting in Week 2 of each YC batch — to secure allocations and build founder relationships before rounds become oversubscribed at Demo Day.

Are Eight Capital investments QSBS qualified?

Yes. Eight Capital's Demo Day fund positions are structured to meet QSBS (Qualified Small Business Stock) criteria under Section 1202 of the Internal Revenue Code, potentially qualifying investors for up to 100% federal capital gains exclusion on qualifying positions held for 5+ years. Consult your tax advisor.

How many YC companies has Eight Capital invested in?

Eight Capital has invested in 250+ YC companies, in every batch since W22.

How can I invest in Eight Capital Fund II?

Eight Capital Fund II is raising $20M with a $100,000 minimum investment for accredited investors. Contact ir@eightcapital.com to request LP materials.

We back YC's best companies before Demo Day

Eight Capital invests in the top ~10% of every Y Combinator batch, weeks before the Demo Day crowd. 250+ companies since W22, 11 acquired so far.

Read Seed Spotlight For investors

A YC batch, week by week

Most investors meet these founders at Demo Day. We aim to have invested by week eight.

We invest here

Most investors arrive

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Research the batchVet

Meet foundersMeet

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Demo DayDemo Day

Top Holdings

See the full portfolio

The portfolio companies leading on revenue and growth today.

TAIV

Taiv uses AI to make businesses TVs more entertaining & valuable.

YC W20AI

Solve Intelligence

AI patent drafting, prosecution & litigation for legal teams

YC S23Series BAI

Giga

AI support agent for enterprises

YC S23Series AAI

Realroots

RealRoots is a mobile app that guarantees women lifelong friendships

YC S25

Hub.xyz

API and marketplace for rights-cleared real-world multimodal AI training data

YC P26AI

AgentCollect

B2B debt collection powered by AI agents

YC S23AI

Portfolio companies acquired by

Vercel
Scale AI
Cognition
Cisco
Postman
Workday
Collate
Optro
CoreWeave
Factory
ServiceNow

VCs Investing in Our Portfolio

Our portfolio companies have raised follow-on rounds from leading venture firms

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Why us

Pre–Demo Day access. We commit before the crowd, when speed and conviction matter most.
Signal you can show. Weekly Spotlight creates investor pull and helps founders raise efficiently.
Systematic process. Proprietary AI platform (vantedgeAI) for diligence, batch coverage, and portfolio monitoring — not gut-feel investing.
LP co-invest access. Research notes, founder introductions, and the ability to co-invest directly in target startups pre-Demo Day.
Founder‑friendly, clean terms. Optimized for speed and minimal distraction — we aim to be the first outside capital in each position.

For investors

Strategy: concentrated pre–Demo Day positions in standout YC startups; software‑first across AI, infra/devtools, fintech, and vertical SaaS.

Edge: systematic batch coverage, early references from builders and customers, and a public Spotlight that helps our companies raise efficiently.

Portfolio development: hands‑on Demo Day prep and targeted early customers; we aim to be the first outside capital in each position.

Reporting: monthly Spotlight, quarterly LP letters, and timely material updates.

Structure: standard seed terms; QSBS eligibility for qualifying positions (consult your tax advisor).

We back YC's best companies before Demo Day

A YC batch, week by week

Top Holdings

Portfolio companies acquired by

VCs Investing in Our Portfolio

Spotlighting Jinba: Turning Natural Language into Enterprise Workflows

Why us

For investors

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