Lob Raises $20M Series B Funding

Lob, a San Francisco, CA-based builder of a suite of mail API for the enterprise, raised a $20m Series B funding.

The round was led by Y Combinator’s Continuity Fund, with participation from existing investors Floodgate, Polaris Partners, First Round Capital, and Initialized Capital. Along with this funding, Ali Rowghani, CEO of YC Continuity and former COO of Twitter, will be joining our board.

The company intends to use the funds to accelerate growth, expand its core API offering, and grow its team.

Co-founded by Leore Avidar and Harry Zhang, Lob is building a mail API that enables companies to send postcards, letters, checks, photos, and more. Lob has over 6,000 customers including Amazon, Oscar Insurance, & Booking.com. Its domestic Address Verification API checks against USPS’s 156 million deliverable addresses to ensure that a product will get to its final destination and that its addresses are standardized, validated, and cleaned.



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