EntrepreneurialCheck
Luk Koska estimated net worth profile

Luk Koska Net Worth (Estimated)

Founder at SF Tensor · YC F25

est. wealth $6.7M

Quick answer

Luk Koska's estimated net worth / paper wealth is $6.7M (range $4.7M–$10.0M) as of 2026.

Luk Koska is Founder at SF Tensor (YC F25). Independent Entrepreneurial Check model estimate from public YC data.

At a glance

NameLuk Koska
RoleFounder
CompanySF Tensor
YC batchF25
Est. company val$20.0M
Assumed ownership33%
Est. paper wealth / net worth$6.7M
$4.7M – $10.0M
  • Company status: Active
  • Region: Austria
  • Industries: B2B, Infrastructure
  • Team size: 6
  • Website: https://sf-tensor.com

Who is Luk Koska?

Luk Koska is a founder involved with SF Tensor, part of the Y Combinator Winter 2025 batch.

About SF Tensor

AI researchers should be pushing the boundaries of what's possible with new architectures and training methods. Instead, they waste weeks configuring cloud infrastructure, debugging distributed systems, and optimizing their GPU code. We know because we lived it: While training our own models across thousands of GPUs earlier this year, we spent more time fighting our infrastructure than doing actual...

Model inputs

  • Stage: seed
  • Valuation tier: fallback-seed
  • Valuation note: no_discovery_sources [scale: $500k-class amount looked like a YC check, not a published seed]
  • Research as-of: 2026-08-04
  • Funding input: no public raise amount found; stage fallback valuation

FAQ: Luk Koska net worth and SF Tensor valuation

What is Luk Koska's net worth?

Luk Koska's estimated net worth / paper wealth is $6.7M (range $4.7M–$10.0M) as of 2026. Entrepreneurial Check publishes an independent model-based estimate from public company and role data.

Luk Koska net worth

Luk Koska's estimated net worth / paper wealth is $6.7M (range $4.7M–$10.0M) as of 2026. This Luk Koska net worth figure is estimated paper wealth, not a verified statement of assets.

How much is Luk Koska worth?

Luk Koska's estimated net worth / paper wealth is $6.7M (range $4.7M–$10.0M) as of 2026. How much Luk Koska is worth here means estimated paper wealth from public company and role data — not financial advice.

How rich is Luk Koska?

Luk Koska's estimated net worth / paper wealth is $6.7M (range $4.7M–$10.0M) as of 2026. “How rich is Luk Koska” here means estimated paper wealth from public company and role data — not verified net worth or financial advice.

Luk Koska fortune

Luk Koska's estimated net worth / paper wealth is $6.7M (range $4.7M–$10.0M) as of 2026. This Luk Koska fortune figure is estimated paper wealth only, not a verified statement of assets.

Luk Koska equity value

Luk Koska's estimated net worth / paper wealth is $6.7M (range $4.7M–$10.0M) as of 2026. Luk Koska equity value on this page is modeled paper wealth from estimated ownership — not a disclosed cap table or verified net worth.

What is SF Tensor valuation?

SF Tensor's estimated valuation on Entrepreneurial Check is $20.0M. Independent model output, not a verified appraisal or official mark.

What is SF Tensor post-money valuation?

SF Tensor's estimated valuation on Entrepreneurial Check is $20.0M. That figure is a modeled post-money mark when a public raise is available — not a verified appraisal or official mark.

What is SF Tensor funding?

SF Tensor funding, when a public raise is available, is a model input on this Entrepreneurial Check profile. How much SF Tensor raised is not a complete cap table — figures are estimates only.

How much did SF Tensor raise?

How much SF Tensor raised, when disclosed, informs the estimated SF Tensor valuation and founder paper-wealth figures on this page. Independent estimate only — not a complete cap table or financial advice.

How much money did SF Tensor raise?

How much money SF Tensor raised, when a public figure is available, is a model input for the estimated SF Tensor valuation on this profile. Estimates only — not a complete cap table.

What is SF Tensor series funding?

SF Tensor series funding, when a public raise is disclosed, informs the estimated SF Tensor valuation here. Not a complete financing history.

What company is Luk Koska building?

Luk Koska is Founder at SF Tensor, a Y Combinator-backed startup (batch F25).

What does SF Tensor do?

SF Tensor — Infrastructure for AI labs to focus on research.

What YC batch is Luk Koska from?

Luk Koska is associated with Y Combinator batch F25.

Where is Luk Koska based?

Public directory data lists Luk Koska's region as Austria.

What industry is Luk Koska in?

Luk Koska is listed under B2B, Infrastructure.

How big is SF Tensor?

Public data lists SF Tensor's team size as 6.

Is Entrepreneurial Check affiliated with Y Combinator?

No. Entrepreneurial Check is an independent informational site and is not affiliated with, endorsed by, or sponsored by Y Combinator or the profiled companies.