David Polonski net worth
Quick answer
David Polonski's estimated net worth is $28K (range $20K – $42K) as of 2026. David Polonski is Founder at BuildStream. BuildStream valuation.
David Polonski is Founder at BuildStream (YC S19). Independent Entrepreneurial Check model estimate from public YC data.
At a glance
- Company status: Inactive
- Region: Unspecified
- Industries: Real Estate and Construction, Construction
- Team size: 9
- Website: https://buildstream.co
Who is David Polonski?
David Polonski is a founder involved with BuildStream, a Y Combinator startup from the Summer 2019 batch.
Highlights:
- Y Combinator (S19)
- BuildStream
About BuildStream
BuildStream makes recruitment and payroll easier than ever for busy construction projects looking to hire temporary workers.
Clients get high quality, reliable workers in super quick time, while saving 35% on agency fees.
Workers finding jobs through us get better pay, faster pay, and are able to choose from high quality, local jobs.
FAQ: David Polonski net worth and BuildStream valuation
What is David Polonski's net worth?
David Polonski's estimated net worth is $28K (range $20K – $42K) as of 2026. David Polonski is Founder at BuildStream. 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 BuildStream valuation?
BuildStream's estimated valuation on Entrepreneurial Check is $1.0M. 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 David Polonski's role?
David Polonski is Founder at BuildStream, a Y Combinator-backed startup (batch S19).