Scanner
San Francisco, US · 9 known investors
Scanner provides full-text search and indexing for security logs stored in S3, enabling security teams to investigate incidents by querying years of data in seconds rather than hours. The platform uses inverted indexes and serverless execution to accelerate log analysis and support iterative incident investigation workflows.
Also known as Scanner.dev
Founders & leadership


Investors · 9
Also in the syndicate · 5
Funding
SEC filings, press & company announcements$22M disclosed across 1 of 2 rounds · 2026
- Undisclosed amountSeries AApr 2026 · 2 sources
Guinness Ventures (lead), Sequoia Capital (lead), Christina Cacioppo, CRV, Mantis VC, Tom Killalea, Venkat Venkataramani
Source ↗ - $22MraisedMar 2026 · 3 sourcesSource ↗
Source: company announcements and press reports — follow each round's link for the claim.
Company profile
researched Aug 2026Scanner is a cybersecurity data platform that indexes security logs where they already reside — object storage such as Amazon S3, Google Cloud Storage and Azure Blob; SaaS applications such as Okta and CrowdStrike; and the streaming pipelines (Kafka, Kinesis, MSK) that feed lakes and warehouses including Snowflake, Databricks and ClickHouse. The company positions the product as a cloud-native security data lake intended to cover the roughly 90% of security telemetry that typically never reaches a SIEM because ingestion and indexing costs force sampling and short retention. Customers can run Scanner alongside an existing SIEM or use it as their primary SIEM.
The platform combines schema-less ingestion (Scanner Collect, with dozens of pre-built integrations for sources such as AWS CloudTrail, Azure, Google Cloud, Okta, GitHub, Tines and PagerDuty), full-text search across petabytes, and a streaming detection engine that uses stateful stream processing to evaluate rules continuously rather than re-scanning historical data. Detections are managed as code from GitHub, with more than 400 out-of-the-box rules across 20+ log sources, plus role-based access control, an API, AI-generated natural-language explanations of logs and alerts, and a Model Context Protocol (MCP) server that gives AI agents structured access to the data lake. Stated use cases include incident response, detection engineering, threat hunting, SIEM augmentation, primary SIEM operation, and compliance and audit evidence.
Deployment options are a managed service (multi-tenant or single-tenant) and Bring Your Own Cloud, where Scanner compute runs entirely inside the customer's own AWS account. By default logs and index files stay in customer-owned S3 buckets, though Scanner can host the collect buffer and index buckets. The company states SOC 2 Type II certification, GDPR compliance and data residency options.
Founding story
The founders say that at their previous employers they watched log volumes and associated bills grow to the point where security teams had to choose between paying for traditional SIEMs or deleting data and accepting blind spots. They drew on experience building large-scale distributed systems and algorithms at Cisco, Dropbox and Accompany to build a platform delivering sub-10-second search across petabytes at lower cost [3].
Business model
Scanner sells its security data lake platform to enterprise security teams, offered either as a managed service (multi-tenant or single-tenant compute run by Scanner) or as Bring Your Own Cloud, where compute runs inside the customer's own AWS account and data remains in customer-owned S3 buckets [2].
Positioned against SIEM ingestion-based pricing, the architecture scales compute up during a query and back down afterwards so customers pay only for the compute used by a search; the company claims unlimited retention at roughly 90% lower cost than a traditional SIEM [2][4][5].
Traction
Named users include Notion, Ramp, BeyondTrust, Lemonade, Benchling, Postman and EliseAI. Ramp reports moving from two weeks to months of searchable history and rapidly searching years of logs for indicators of compromise; Lemonade's CISO reports searching a full year of logs in seconds. Notion runs a security AI agent called Scruff that draws on Scanner alongside Wiz and CrowdStrike. The company says AI agents became some of the most active users of the platform in recent weeks/months [0][4][5].
Latest developments
In March 2026 Scanner announced a $22m Series A led by Sequoia Capital, with CRV, Mantis VC and angel investors including Vanta CEO Christina Cacioppo, MongoDB board chairman and former Amazon CISO Tom Killalea, and Rockset founder and OpenAI head of infrastructure Venkat Venkataramani. The capital is earmarked for expanding platform capabilities and reaching more security teams, with emphasis on AI agents that continuously query security data to triage alerts and hunt threats [4][5][6][7].
▸Full profile — market position, technology, go-to-market, geography, history
Market position
Scanner competes with traditional SIEMs on cost and retention and with data-lake query engines on speed, claiming full-text search up to 100x faster than Amazon Athena on its site and up to 700x faster in its documentation. Its Series A lead investor describes it as managing security data at AI scale for agentic security operations [0][2][4][5].
Data is indexed in place in the customer's own cloud storage in open, non-proprietary form, avoiding vendor lock-in and ingestion-based pricing; schema-less ingestion removes ETL work; the streaming detection engine avoids repeated re-scanning of historical data; and native MCP support plus an API-first design are aimed at making AI-agent-driven investigation fast and economical [0][2].
Technology
The platform builds inverted indexes at ingestion time over data in object storage, avoiding ETL or schema design; JSON, CSV, plaintext and Parquet are searchable as-is. Query execution scales compute resources up temporarily and back down when complete. A streaming query engine performs stateful stream processing to evaluate hundreds of continuous detection rules on terabytes of logs per day with alerts in minutes. The company cites sub-10-second needle-in-a-haystack search across 100TB of logs and petabyte-scale queries in seconds, plus an API and MCP server for programmatic and AI-agent access [0][2][4][5][6].
Go-to-market
Direct enterprise sales supported by demo requests on the website, public documentation and quick-start setup, published customer case studies (Ramp, Lemonade), an integration library, and detection content distributed via GitHub. Alerts route into existing SOAR platforms, webhooks and AI triage agents to fit alongside incumbent tooling [0][2].
Enterprise and high-growth technology company security teams — detection engineers, incident responders, threat hunters and CISOs — particularly those with high-volume cloud and SaaS log sources (for example WAF and endpoint detection data) that are too costly to keep in a SIEM [2][5].
Geography
Headquartered in San Francisco, with cloud deployments in customer-owned AWS accounts and data residency options; supports AWS, Google Cloud and Azure storage sources [2][6].
History
Sources date the company's establishment to 2022 [6]. In March 2026 it announced a $22m Series A led by Sequoia Capital with participation from CRV and Mantis VC, alongside angel investors, and reported growing use of its platform by AI security agents [4][5][6][7].
Compiled by commissioned research from 8 cited public sources — announcements, filings, and press listed under research sources below.
Key figures
latest reportedCompany-reported or press-reported figures, each dated to when it was claimed — not independently audited.
Competitors · 4
by search overlapCompanies competing with Scanner for the same Google search keywords, organic and paid, via search-intersection analysis.
Timeline · 2
launches, deals, and filingsScanner announced a $22m Series A led by Sequoia Capital with participation from CRV, Mantis VC and angel investors, to expand its security data platform and support AI-agent-driven security operations.
$22M source ↗
Scanner states it is SOC 2 Type II certified and GDPR compliant, and offers data residency options.
Dated company events from announcements, filings, and press; legal rows summarize public dockets and regulator releases.
In the news
▸Research sources · 8
primary sources listed
- Scannerscanner.dev · web
8 public sources were cited for this profile; the first-party ones are listed here.
Frequently asked questions
- What does Scanner do?
- Scanner is a cloud-native security data lake that indexes logs in object storage for fast full-text search and continuous detections.
- Who founded Scanner?
- Scanner was founded by Cliff Crosland, Steven Wu.
- Who are Scanner's investors?
- Scanner's investors include Sequoia Capital, CRV (Charles River Ventures), Mantis Capital, Guinness Ventures.
- How much funding has Scanner raised?
- Scanner has disclosed $22M raised across 1 of its 2 known rounds.
- Where is Scanner headquartered?
- Scanner is headquartered in San Francisco, US.





