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DeepMark launch: what they're building and where to launch next

What they're building

A live watermark inside AI voice that survives phone calls

Batch
Y Combinator Fall 2026
Industry
B2B
Team size
5
Based
San Francisco, CA, USA

Founders

deepmark.me ↗

See their funding details ↗

DeepMark on the record

What they shipped

  • From its YC profile: DeepMark is the authentication layer for AI voice. When an AI agent speaks, we embed a compact, machine-readable ID directly into the audio, not in metadata, which gets stripped the moment a file is touched. The ID resolves to a trust record, so a bank, a call center, or the person on the line can verify in real time who the agent is. (source)
  • Its own site describes it as: "AI-driven watermarking that embeds imperceptible identity into generated media for compliance, authentication, and trust." (source)

Who is behind it

  • Slavko Kovačević, Founder/CEO: Founder/CEO at DeepMark (YC F26). PhD candidate in Computer Science. (source)
  • Kosta Pavlović, Founder/CSO: Founder/CSO at DeepMark (YC F26). PhD in Computer Science. (source)

Code

  • GitHub organization deepmark: 5 public repositories, 22 stars in total, mostly Python; most starred is aware (12 stars, Python); last push 2026-09-09 (read 2026-09-10). (source)

Timeline

  1. 2025: founded, per its YC profile. (source)
  2. 2026-08-13: "Show HN: Deepmark – Search your bookmarks by what's inside them, not the title" posted to Hacker News by shafkathullah, 5 points and 5 comments. (source)

Other B2B software launches on FoxPlug

  • Sona8: Voice agents that talk to employees enabling transformations
  • SpaceFlow Technologies, Inc.: AI-native procurement services for the physical economy
  • Speko: OpenRouter for Voice AI: one API, every call on the best speech model

Where else to launch DeepMark

  • Product Hunt ↗
    Self-promotion allowedFree
  • Indie Hackers Forum ↗
    Self-promotion allowed
    Audience: IndieHackers; bootstrapped solo founders sharing revenue and behind-the-scenes
  • Hacker News (Show HN) ↗
    Self-promotion allowed, within the community's rules
    Audience: Hacker News readers; engineers, technical founders, infra-curious people
  • Demand Curve ↗
    Self-promotion allowed, within the community's rules
    Audience: Slack community; tight-knit, pseudo-private peer group
  • No Code Founders ↗
    Self-promotion allowed, within the community's rules
    Audience: Slack community; tight-knit, pseudo-private peer group
  • OnlineGeniuses ↗
    Self-promotion allowed, within the community's rules
    Audience: Slack community; tight-knit, pseudo-private peer group
  • Product Makers ↗
    Self-promotion allowed, within the community's rules
    Audience: Slack community; tight-knit, pseudo-private peer group
  • ProductLed ↗
    Self-promotion allowed, within the community's rules
    Audience: Slack community; tight-knit, pseudo-private peer group

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Featured on FoxPlug: DeepMark