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Lob (YC S13) — Lob is the only automation platform that transforms direct mail into…

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.

Lob is a Y Combinator company in the Summer 2013 batch. Its directory entry describes it as: Lob is the only automation platform that transforms direct mail into…. The founder listed is Harry Zhang (Founder) (Y Combinator directory entry, May 2, 2013).

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Lob

New accelerator entry · 2013-05-02 · the record

Summer 2013
batch
150
people
Growth
stage
United States of America
region
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What the record says

BatchSummer 2013
Announced2013-05-02
StageGrowth
StatusActive
Team size150
IndustryB2B
Sub-industryB2B -> Marketing
SectorsAutomation
RegionsUnited States of America, America / Canada, Remote, Partly Remote
BasedNew York City, NY, USA; San Francisco, CA, USA
HiringYes
Sitehttp://lob.com

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Also in YC Summer 2013

Same batch, B2B first.

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In their words

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.

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  5. The Money: Funding, Valuation, Runway

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  8. Sources

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Lob: Accepted into Y Combinator Summer 2013
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Permanent URL: https://mentionfox.com/funding/yc-lob
Last updated 2026-10-20
Primary record: Y Combinator directory entry
Lob (YC S13) — Lob is the only automation platform that transforms direct mail into…. MentionFox, 2026-10-20. https://mentionfox.com/funding/yc-lob