Profile
Jonathan A.
Costello is the founder.
He founded Brook Street Investments LLC in 2005 and held the title of Partner in 2011.
He also held former positions as Director at Safeguard International Management LLC, Manager at Deloitte & Touche LLP from 1993 to 1999, and Associate at Howard Industries from 1999 to 2000.
Mr. Costello's education history includes an MBA from The Trustees of Columbia University in The City of New York in 1999 and an undergraduate degree from Villanova University in 1993.
Former positions of Jonathan Costello
| Companies | Position | End |
|---|---|---|
Howard Industries
 Howard Industries Miscellaneous ManufacturingProducer Manufacturing Howard Industries manufactures signage systems. Its services include tech drawings, GSA contract, catalog, imprinted brochures and custom artwork. The company was founded in 1928 and is headquartered in Fairview, PA. | Corporate Officer/Principal | - |
Deloitte & Touche LLP
 Deloitte & Touche LLP Miscellaneous Commercial ServicesCommercial Services Deloitte & Touche LLP engages in the provision of audit, advisory, financial advisory, tax, and consulting services. The company was founded on March 7, 1995 and is headquartered in New York, NY. | Corporate Officer/Principal | - |
Safeguard International Management LLC
 Safeguard International Management LLC Investment ManagersFinance Safeguard International Management LLC (Safeguard Intl Mgmt) is a private equity subsidiary of Safeguard Scientifics, Inc founded in the year 1953. The firm is headquartered in Radnor, Pennsylvania. | Director/Board Member | - |
Brook Street Investments LLC
 Brook Street Investments LLC Investment ManagersFinance Brook Street Investments LLC (Brook Street) is a private equity firm founded in 2005 by Jonathan A. Costello. The firm is headquartered in Ardmore, Pennsylvania. | Founder | - |
Training of Jonathan Costello
| The Trustees of Columbia University in The City of New York | Masters Business Admin |
| Villanova University | Undergraduate Degree |
Experiences
Positions held
Connections
1st degree connections
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 4 |
|---|---|
Deloitte & Touche LLP
Deloitte & Touche LLP Miscellaneous Commercial ServicesCommercial Services Deloitte & Touche LLP engages in the provision of audit, advisory, financial advisory, tax, and consulting services. The company was founded on March 7, 1995 and is headquartered in New York, NY. | Commercial Services |
Safeguard International Management LLC
Safeguard International Management LLC Investment ManagersFinance Safeguard International Management LLC (Safeguard Intl Mgmt) is a private equity subsidiary of Safeguard Scientifics, Inc founded in the year 1953. The firm is headquartered in Radnor, Pennsylvania. | Finance |
Brook Street Investments LLC
Brook Street Investments LLC Investment ManagersFinance Brook Street Investments LLC (Brook Street) is a private equity firm founded in 2005 by Jonathan A. Costello. The firm is headquartered in Ardmore, Pennsylvania. | Finance |
Howard Industries
Howard Industries Miscellaneous ManufacturingProducer Manufacturing Howard Industries manufactures signage systems. Its services include tech drawings, GSA contract, catalog, imprinted brochures and custom artwork. The company was founded in 1928 and is headquartered in Fairview, PA. | Producer Manufacturing |
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