EntrepreneurialCheck
John S. Kim estimated net worth profile

John S. Kim Net Worth (Estimated)

Co-Founder/CEO at Sendbird · YC W16

est. wealth $55.1M KoreanAsian

Quick answer

John S. Kim's estimated net worth / paper wealth is $55.1M (range $38.6M–$82.7M) as of 2026.

John S. Kim is Co-Founder/CEO at Sendbird (YC W16). Independent Entrepreneurial Check model estimate from public YC data.

At a glance

NameJohn S. Kim
RoleCo-Founder/CEO
CompanySendbird
YC batchW16
Est. company val$1.1B
Assumed ownership5%
Est. paper wealth / net worth$55.1M
$38.6M – $82.7M
  • Company status: Active
  • Background: Korean, Asian
  • Education: University of California, Berkeley
  • Region: United States of America
  • Industries: B2B, Engineering, Product and Design
  • Team size: 300
  • Website: https://sendbird.com

Who is John S. Kim?

John S. Kim is a co-founder of Sendbird, a communications API platform that facilitates chat and messaging in applications.

Highlights:

  • University of California, Berkeley
  • Samsung Electronics
  • Part of Y Combinator Winter 2016

Background

KoreanAsian

Heritage labels inferred from name patterns only — not verified. Heritage/background labels may be inferred and are not verified identity documents.

About Sendbird

We believe in a future where AI unlocks human potential across all facets of life. We envision an A2A (Agent-to-Agent) world where AI agents connect businesses and individuals, empowering them to achieve more than ever before. It’s a future where the impossible becomes possible, and human achievement is no longer bound by time and cognitive load. We power over 300M+ people's conversations every month and we are...

Model inputs

  • Stage: series-c
  • Valuation tier: reported-valuation
  • Funding input: reported raise $100.0M
  • Current valuation input: $1.1B
  • Valuation note: Replace leftover $102M Series B with the later first-party $100M Series C at $1.05B.
  • Research as-of: 2026-09-14
  • Funding source: https://sendbird.com/blog/series-c-funding

FAQ: John S. Kim net worth and Sendbird valuation

What is John S. Kim's net worth?

John S. Kim's estimated net worth / paper wealth is $55.1M (range $38.6M–$82.7M) as of 2026. Entrepreneurial Check publishes an independent model-based estimate from public company and role data.

John S. Kim net worth

John S. Kim's estimated net worth / paper wealth is $55.1M (range $38.6M–$82.7M) as of 2026. This John S. Kim net worth figure is estimated paper wealth, not a verified statement of assets.

How much is John S. Kim worth?

John S. Kim's estimated net worth / paper wealth is $55.1M (range $38.6M–$82.7M) as of 2026. How much John S. Kim is worth here means estimated paper wealth from public company and role data — not financial advice.

How rich is John S. Kim?

John S. Kim's estimated net worth / paper wealth is $55.1M (range $38.6M–$82.7M) as of 2026. “How rich is John S. Kim” here means estimated paper wealth from public company and role data — not verified net worth or financial advice.

John S. Kim fortune

John S. Kim's estimated net worth / paper wealth is $55.1M (range $38.6M–$82.7M) as of 2026. This John S. Kim fortune figure is estimated paper wealth only, not a verified statement of assets.

John S. Kim equity value

John S. Kim's estimated net worth / paper wealth is $55.1M (range $38.6M–$82.7M) as of 2026. John S. Kim equity value on this page is modeled paper wealth from estimated ownership — not a disclosed cap table or verified net worth.

What is Sendbird valuation?

Sendbird's estimated valuation on Entrepreneurial Check is $1.1B. Independent model output, not a verified appraisal or official mark.

What is Sendbird post-money valuation?

Sendbird's estimated valuation on Entrepreneurial Check is $1.1B. That figure is a modeled post-money mark when a public raise is available — not a verified appraisal or official mark.

What is Sendbird CEO net worth?

John S. Kim is listed as Co-Founder/CEO at Sendbird. John S. Kim's estimated net worth / paper wealth is $55.1M (range $38.6M–$82.7M) as of 2026. This Sendbird CEO net worth figure is an independent paper-wealth estimate, not verified net worth.

What is Sendbird funding?

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

How much did Sendbird raise?

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

How much money did Sendbird raise?

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

What is Sendbird series funding?

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

What company is John S. Kim building?

John S. Kim is Co-Founder/CEO at Sendbird, a Y Combinator-backed startup (batch W16).

What does Sendbird do?

Sendbird — The AI agent that doesn’t just support, it delights.

What YC batch is John S. Kim from?

John S. Kim is associated with Y Combinator batch W16.

Where did John S. Kim go to school?

Public profiles associate John S. Kim with University of California, Berkeley.

What other companies is John S. Kim connected to?

Public associations for John S. Kim include Samsung Electronics.

Where is John S. Kim based?

Public directory data lists John S. Kim's region as United States of America.

What industry is John S. Kim in?

John S. Kim is listed under B2B, Engineering, Product and Design.

How big is Sendbird?

Public data lists Sendbird's team size as 300.

What else is notable about John S. Kim?

University of California, Berkeley.

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.