Callback blog · Mar 2026
The company’s own announcement describes Callback as an enterprise agentic AI system with blueprints, audit trails, RBAC, and forward-deployed engineering support.
Public company, workplace, funding, and market signals
Updated Jul 29, 2026
Callback is a 2024 San Francisco startup building an AI-native BPO / enterprise workflow automation platform that acts as an auditable, permissioned system of record for complex operational workflows.
Primary product
AI automation platform / AI-native BPO for business operations and complex real-world workflows
Founded
2024
Headquarters
San Francisco, California, United States
Team size
1-10
Industry
Technology, Information and Internet
Sub-industry
AI-native business process outsourcing
Offices
0 jobs at Callback
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Business model
Stage
Pre-Seed
Total raised
$500K
Latest round
Pre-Seed · Sep 2024
Latest amount
$500K
Sep 2024 · Y Combinator
Public recruiting language describes a tight-knit team of lifelong builders looking for creative hackers who can wear multiple hats across product, engineering, operations, and design.
Compensation
No public compensation bands or explicit benefits package were found on the careers page; public recruiting copy only invites candidates to email a resume and note.
Differentiators
Technology
Customers
Competitors
Estimated revenue
~$660K ARR (third-party estimate, 2025)
Estimated monthly visits
676
Callback blog · Mar 2026
The company’s own announcement describes Callback as an enterprise agentic AI system with blueprints, audit trails, RBAC, and forward-deployed engineering support.
Outsource Accelerator · Oct 2024
External coverage says Callback secured a $500K pre-seed round and uses AI plus human oversight to target the BPO market.
LinkedIn · Sep 2024
Alan Xie announced Callback’s launch, described it as part of Y Combinator Summer 2024, and framed the product as an AI-native BPO / business operations platform.
Y Combinator
YC’s company profile describes Callback as an AI automation platform for complex workflows, highlights the co-founders, and reiterates the company’s 2024 founding and San Francisco location.
Y Combinator Launches
YC’s launch page positions Callback as an AI-native BPO using a modern tech stack and explains the human-in-the-loop workflow model.