RECENT FUNDING
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  3. Callbook AI

Callbook AI

Callbook AI is an AI collections agency that helps financial institutions locate, contact, and negotiate with borrowers.

Y Combinator
Latest funding

$500K*

Source: ycombinator.com

Latest round on record: Pre Seed, August 2026, amount undisclosed.

All 2 rounds ↓
Website: callbook.ai.
X: @callbook_ai · 17 followers.
Sectors: B2B, AI.
Stage: Pre Seed.
Based in: San Francisco, United States.
Last round: Aug 22, 2026 · 82 days ago.
Team: 7 people on the team page.
On Recent Funding since: Sep 28, 2026.

Signals

X account@callbook_ai · created Jul 25, 2024 (2 years old) · 17 followers
Website registeredJun 18, 2024 (2 years old)
TIMELINE · MILESTONES

Callbook AI | 795 days from website to first raise on record

@callbook_ai·1 round·2 signals before the first raise
JULNOVMARJULNOVMARJULNOV||WEBSITE CREATED · JUN 18, 2024||X ACCOUNT CREATED @CALLBOOK_AI · JUL 25, 2024Pre Seed · Aug 22, 2026PRE-SEED · AUG '26

One step per dated milestone. Pins are dated signals; hover the icons for dates.

Funding rounds

  1. Pre Seed · amount undisclosed
  2. X account created
  3. Website created
  4. Date unknown
    Round · $500K*
    YY Combinator
    Source: ycombinator.com

Founders and team

Investors

Companies like Callbook AI

Sources and API

Every amount links to the page it came from. * Estimated from an accelerator's published standard deal, not a company-specific disclosure. How Recent Funding sources and verifies funding data. The same data as JSON: /api/v1/companies/callbook-ai (get a free API key).

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