# Scanner

> Scanner is a San Francisco cybersecurity company that turns the log data companies already dump into Amazon S3 into a fast, searchable security data lake. Instead of paying traditional SIEM prices to keep only a few weeks of logs, security teams use Scanner to index petabytes of data directly in object storage, run continuous threat detections, and search years of history in seconds - now increasingly driven by AI agents. Founded by ex-Cisco and Dropbox engineers Cliff Crosland and Steven Wu, the company raised a $22M Series A led by Sequoia Capital in March 2026.

- **Founded:** 2022
- **Headquarters:** San Francisco, California, United States
- **Founders:** Cliff Crosland (Co-Founder & CEO), Steven Wu (Co-Founder & CTO)
- **Team size:** ~29 employees
- **Products:** Security Data Lake, Collect & Enrich, Search & Investigate, Detection & Response, MCP & APIs
- **Notable:** Raised $22M Series A led by Sequoia Capital (March 2026), Demonstrated indexing across 1.4 PiB of AWS CloudTrail data, Powered a Notion AI agent that cut investigation time by 84%

## Products & services

- **Security Data Lake** — A cloud-native platform that indexes raw log data directly in Amazon S3, delivering fast full-text search across petabytes while keeping the low cost of object storage.
- **Collect & Enrich** — Ingests and enriches log sources - AWS CloudTrail, Cloudflare logs, Windows event logs, and more - at the time of ingestion.
- **Search & Investigate** — Sub-10-second full-text search across years of security logs for threat hunting and incident investigation.
- **Detection & Response** — Continuous detection rules run on the full log stream, with detection-as-code managed from GitHub.
- **MCP & APIs** — Model Context Protocol server and search APIs that let AI agents query security data in S3 programmatically.

## Achievements

- Raised $22M Series A led by Sequoia Capital (March 2026)
- Demonstrated indexing across 1.4 PiB of AWS CloudTrail data
- Powered a Notion AI agent that cut investigation time by 84%
- Extended Ramp's searchable log history from two weeks to months
- Backed by notable angels including Vanta CEO Christina Cacioppo and Amazon's first CISO Tom Killalea

## Latest updates

- **2026-03** — Raised $22M Series A led by Sequoia Capital, with CRV and Mantis VC, to scale its AI-driven security data platform.
- **2026-03** — Reported metrics from Notion's Scruff AI agent: 84% reduction in investigation time and a 30% increase in team job satisfaction.
- **2025** — Shipped MCP server and search APIs enabling AI agents to query security logs stored in S3.

## Links

- Website: https://scanner.dev
- LinkedIn: https://www.linkedin.com/company/scanner-dev
- Twitter/X: https://x.com/scanner_dev
- GitHub: https://github.com/scanner

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Profile page: https://yespress.io/scanner
Published by YesPress — https://yespress.io
Last updated: 2026-07-10