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14,448 startups · 29 programs

DeepMark

Active · A live watermark inside AI voice that survives phone calls

WebsiteYC profile

Why it ranks

How the rank works
8signal of 100 · rising 8
  • team of 5Team size · YC's directory+4
  • went through YCProgram · this site+4

A sum of public facts, not a judgement and not investment advice.

Competitors

AIFeatherShared: phone call, voiceYC S22SeattleStartup →AIBland AIShared: phone callYC S23San FranciscoStartup →AIAcquiredTetraShared: phone callYC W17San FranciscoStartup →AIPhonelyShared: call center, person, agentYC S24Startup →AISamora AIShared: call center, phone call, voiceYC W26Startup →OtherInstinctShared: phone callStartup →
Companies closest to DeepMark
Company
FeatherShared: phone call, voiceYC S22ActiveAI
Bland AIShared: phone callYC S23ActiveAI
TetraShared: phone callYC W17AcquiredAI
PhonelyShared: call center, person, agentYC S24ActiveAI
Samora AIShared: call center, phone call, voiceYC W26ActiveAI
Instinctnot in a program hereShared: phone callElsewhereOther

Adjacent

OtherProductive AIShared: phone callAlchemist Class 19San MateoStartup →OtherSentient MachinesShared: call centerEF 2016LondonStartup →Developer toolsAircallShared: call center, voice, phone500 Global GA 14United StatesStartup →AICalltreeShared: call center, voice, agentYC W25San FranciscoStartup →AIAcquiredHey ReviaShared: phone call, voiceYC S24San FranciscoStartup →
Companies next to DeepMark
Company
Productive AIShared: phone callAlchemist Class 19Not statedOther
Sentient MachinesShared: call centerEF 2016Not statedOther
AircallShared: call center, voice, phone500 Global GA 14Not statedDevtools
CalltreeShared: call center, voice, agentYC W25ActiveAI
Hey ReviaShared: phone call, voiceYC S24AcquiredAI, Devtools

Also from F26 in AI

All of F26
AI0.securityThe autonomous cybersecurity teamYC F26San FranciscoStartup →AIArmorer LabsContinuous security verification for AI systems in regulated…YC F26San FranciscoStartup →AIOpenHackAlways-on AI security engineerYC F26San FranciscoStartup →AIRoutantLast mile deployment and connectivity for Agents as a ServiceYC F26San FranciscoStartup →AIStacktraceSee and control what your agents actually doYC F26San FranciscoStartup →AIAcyclic LabsAgent swarms that make long-running tasks exponentially fasterYC F26LondonStartup →
Company
0.securityThe autonomous cybersecurity teamteam of 2ActiveAI, Devtools
Armorer LabsContinuous security verification for AI systems in regulated…team of 2ActiveAI, Devtools
OpenHackAlways-on AI security engineerActiveAI, Devtools
RoutantLast mile deployment and connectivity for Agents as a ServiceActiveAI, Devtools
StacktraceSee and control what your agents actually doteam of 3ActiveAI, Devtools
Acyclic LabsAgent swarms that make long-running tasks exponentially fasterteam of 2ActiveAI, Devtools

Founders

  • Slavko KovačevićFounder/CEO
  • Kosta PavlovićFounder/CSO

About DeepMark

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.

YC batch
F26 · Fall 2026
Status, per YC
Active
Category
AI
Team size
5
Location
San Francisco, CA, USA
Founded
2025
Checked
6h ago

YC tags: B2B, Cybersecurity

Changes seen

TagsOct 19, 2026

No longer tagged Deep Learning.

Source ↗

DeepMark in F26: 219 companies, 89% AI

GitHub LinkedIn

DeepMark: questions

Which YC batch was DeepMark in?

DeepMark was in Y Combinator's Fall 2026 batch (F26).

Is DeepMark still active?

Y Combinator lists DeepMark as active.

Who founded DeepMark?

DeepMark's founders, as listed on its YC page: Slavko Kovačević (Founder/CEO), Kosta Pavlović (Founder/CSO).

Where is DeepMark based?

DeepMark lists San Francisco, CA, USA as its location on YC's directory.