Walter was founded by Nikolas Keller, Lukas Postulka in 2026.

Who are Walter's investors?

Walter's investors include Y Combinator, Category Ventures, District Ventures Capital, Haystack, Panache Ventures, RRE Ventures, Techstars, Uncork Capital.

Where is Walter headquartered?

Walter is headquartered in San Francisco, US.

Walter

YC X26

San Francisco, US · Founded 2026 · 2 employees on LinkedIn · 8 known investors

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Walter is a document processing and data extraction platform that reads PDFs and emails, validates data against customer catalogs, and writes validated information directly into ERP systems. It serves enterprise customers for tasks like sales order processing and bill of material analysis.

Also known as Vaulter Technologies, Inc. · Lobster AI · Lobster AI, Vaulter, Vaulter Technologies, Vaulter · Vaulter · Vaulter Technologies

Data & Infrastructure Enterprise Software SaaSUnited States of AmericaAmerica / Canada

Founders & leadership· Y Combinator alumni (X26)

Walter was founded in 2026 by Nikolas Keller and Lukas Postulka.

Nikolas Keller Co-founder · CEONikolas Keller worked as the first hire at an AI-focused manufacturing startup and has prior experience in high-end restaurant kitchens across France, Italy, and Germany. He attended CDTM and is a Z Fellow.

Lukas Postulka Co-founder · CTOLukas Postulka previously worked as a quantitative trader and studied at Technical University of Munich (TUM). He was a fellow in the Z Fellowship program.

Investors · 8

Y Combinatorlisted by Y CombinatorSan Francisco · $500K

How we know: the Y Combinator directory · open dataset · 5k.vc investor directory · Not right? Tell us

Category VenturesreportedSan Francisco

How we know: funding news · Not right? Tell us

District Ventures CapitalreportedCalgary · $2M – $7M

How we know: open dataset · 5k.vc investor directory · Not right? Tell us

HaystackreportedSan Francisco · $1M – $3M

How we know: funding news · Not right? Tell us

Panache VenturesreportedMontreal · $1.5M

How we know: funding news · Not right? Tell us

RRE VenturesreportedNew York · $5M – $15M

How we know: funding news · Not right? Tell us

TechstarsreportedBoulder · $220K

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Uncork CapitalreportedSan Francisco · $3M – $5M

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Legal entities · 1

corporate structure

Vaulter Technologies, Inc.

In the news

Walter: AI Employee for the Manufacturing Back Officeycombinator.com · Jun 2026

Frequently asked questions

What does Walter do?: Walter is a document processing and data extraction platform that reads PDFs and emails, validates data against customer catalogs, and writes validated information directly into ERP systems. It serves enterprise customers for tasks like sales order processing and bill of material analysis.
Who founded Walter?: Walter was founded by Nikolas Keller, Lukas Postulka in 2026.
Who are Walter's investors?: Walter's investors include Y Combinator, Category Ventures, District Ventures Capital, Haystack, Panache Ventures, RRE Ventures, Techstars, Uncork Capital.
Where is Walter headquartered?: Walter is headquartered in San Francisco, US.