Castanet is where serious startups host a living pitch videos, context, and updates and investors explore quietly until they choose to step forward.
Three beats
craft, publish, engage
then only talk to investors who raise their hand
Step 1
Headline, summary, and a video pitch — the same canvas every investor sees, so diligence starts from a single source of truth.
Step 2
Your first publication goes through a quick admin review. After that, iterate freely — updates don’t need another gate.
Step 3
Investors stay anonymous until they follow you. Then their firm and team are visible — engagement stays intentional, not noisy.
Built for founders who want signal, not noise
Your work sits in a format investors actually scan — not buried in inbox three.
Subscribed investors can search and filter; you're not paying for vanity impressions.
Post progress to followers — it's opt-in on their side, not another mailing list for the world.
Simple plans - No hidden fees
Nominal charges for in-app services and premium features
Starter
List & Pitch be discovered.
Growth
For teams actively in a raise.
What early founders are saying






“Finally a place where the deck and the founder story live together — without eighty cold emails before the first real look.”
Arjun Mehta
Co-founder & CEO
Stackflow (B2B SaaS, Bengaluru)
Castanet helps you be discovered and have structured conversations. We do not run transactions, escrow, or fundraising on your behalf.
India-based startups and investors with verifiable entity details — see Terms for scope and eligibility.
An active subscription is required to publish and stay visible on the platform. Points can power add-ons such as premium tools — check in-app billing for live plans.
Yes. After the initial approval, you can refine copy, video, and metadata without another moderation pass, unless administrators intervene for policy reasons.