Sales & marketing

Lob

Website

Lob provides the building blocks for developers to automate the offline world. Enterprise companies use Lob’s suite of APIs to mail fully dynamic and personalized customer communications with print media. We provide insight into deliverability with piece-by-piece tracing and utilize our proprietary Print Delivery Network to streamline production ac

Overview

Lob provides the building blocks for developers to automate the offline world. Enterprise companies use Lob’s suite of APIs to mail fully dynamic and personalized customer communications with print media. We provide insight into deliverability with piece-by-piece tracing and utilize our proprietary Print Delivery Network to streamline production across fully redundant nodes all over the country.

Founded in 2013 and based in San Francisco, Lob is venture backed by Y Combinator, Polaris Partners, Floodgate, and First Round Capital.

Find out more about Lob and what we’re up to by following our blog: https://lob.com/blog or visiting our website: https://lob.com.

Company description As recorded 2026-11-08
LinkedIn GitHub About
Sales & marketingAPI platformDevelopersEnterpriseUsage & volume pricing

Customers & use cases

Trusted by 12,000+ companies for all things direct mail – from building to routing to fulfillment.

Source-reported As recorded 2026-09-16

Founders & team

150team members reported
Source-reported As recorded 2026-09-15

News & product activity

Sources & observations

Y Combinator

Profile depthenriched profile
Website observationwebsite reachable
Last website check2026-11-11
Location · source statedNew York City, NY, USA; San Francisco, CA, USA
Pricing evidenceA pricing page was detected
Maturity: Operating · 4 of 6 areas documented

Source-based assessment · automated evidence rules

The company website explicitly reports customer or user adoption. This is a source-based assessment of a company claim; scale and revenue are not independently verified.

Company website: home Checked 2026-09-16

Trusted by 12,000+ companies for all things direct mail – from building to routing to fulfillment.

Maturity is an evidence-based assessment, not a success rating. It may understate the current stage where evidence is limited. Coverage records documented areas, not a complete or independently audited company history.

Stage definitions
independent websitesource corroborationreachable websitedescriptive evidenceclassified market and modelsourced peoplepricing page observedrecent publishing observed
startup.observe Directory coverage · Sources & method