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Lotte Seifert estimated net worth profile

Lotte Seifert net worth

Lotte Seifert Net Worth 2026 (Estimated) · Founder at SID · YC S23
est. wealth $5.0M

Quick answer

Lotte Seifert's estimated net worth is $5.0M (range $3.5M – $7.5M) as of 2026. Lotte Seifert is Founder at SID. SID valuation.

Lotte Seifert is Founder at SID (YC S23). Independent Entrepreneurial Check model estimate from public YC data.

At a glance

NameLotte Seifert
RoleFounder
CompanySID
YC batchS23
Est. company val$20.0M
Assumed ownership25%
Est. paper wealth / net worth$5.0M
$3.5M – $7.5M
  • Company status: Active
  • Region: United States of America
  • Industries: B2B, Engineering, Product and Design
  • Team size: 7
  • Website: https://www.sid.ai

Who is Lotte Seifert?

Lotte Seifert is a founder associated with SID as part of Y Combinator's Summer 2023 cohort.

Highlights:

  • Y Combinator S23

About SID

SID is an AI research lab based in San Francisco. We train models that can retrieve and reason over any data source.

FAQ: Lotte Seifert net worth and SID valuation

What is Lotte Seifert's net worth?

Lotte Seifert's estimated net worth is $5.0M (range $3.5M – $7.5M) as of 2026. Lotte Seifert is Founder at SID. Entrepreneurial Check publishes an independent model-based estimate from public company and role data. Not verified net worth, and Entrepreneurial Check is not affiliated with Y Combinator or the profiled companies.

What is SID valuation?

SID's estimated valuation on Entrepreneurial Check is $20.0M. That valuation, or a disclosed round when one is public, is the source for the paper-wealth estimate. Independent model output — not a verified appraisal or official mark.

What is Lotte Seifert's role?

Lotte Seifert is Founder at SID, a Y Combinator-backed startup (batch S23).