# John K. Castle

Works at Castle Harlan

John K. Castle works at Castle Harlan.

Last updated: 2026-10-13

American businessman

Profile: https://selfbadge.com/john-k-castle
Stable id: https://selfbadge.com/john-k-castle#person
JSON: https://selfbadge.com/john-k-castle.json

## In brief

- John K. Castle works at Castle Harlan.
- John was at Donaldson, Lufkin & Jenrette (1965 to 1985).
- John studied at Harvard Business School.
- John studied at Massachusetts Institute of Technology.
- John studied at Harvard University.
- John received honorary doctorate.
- John's website is johnkcastle.com.

Facts published: 18. Verified: 0.

Status: seeded from public sources and not yet claimed by the person. Facts below are unconfirmed.

## Links

- Website: http://www.johnkcastle.com/ (from Wikidata)

## Experience

- Castle Harlan, 1986 to present (from Wikidata)
- Donaldson, Lufkin & Jenrette, 1965 to 1985 (from Wikidata)
- Associated with The Equitable Life Assurance Society, no dates listed (from Wikidata)

## Occupations

Chief executive officer, Philanthropist, Adventurer, Chairperson

## Education

- Harvard Business School (from Wikidata)
- Massachusetts Institute of Technology (from Wikidata)
- Harvard University (from Wikidata)

## Awards

- honorary doctorate (from Wikidata)

## Identifiers

- Wikidata: Q16727878 (https://www.wikidata.org/wiki/Q16727878)
- Crunchbase: john-k-castle (https://www.crunchbase.com/person/john-k-castle)

Last updated: 2026-10-13