![Jeffrey Sonnenfeld](data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="%231b1b1b" class="bi bi-person-fill" viewBox="0 0 16 16"><path d="M3 14s-1 0-1-1 1-4 6-4 6 3 6 4-1 1-1 1zm5-6a3 3 0 1 0 0-6 3 3 0 0 0 0 6"/></svg>)
Jeffrey Sonnenfeld
Net worth: 3 M $ as of 30/12/2025
Profile
Jeffrey A. Sonnenfeld is the founder of the Chief Executive Leadership Institute, serving as President & Chief Executive Officer since 1989.
Current jobs include Independent Director at Lennar Corp.
since 2011, Director at National Council on Aging, Inc. since 2017, Director at AdvanceCT, Director at Investors' Exchange LLC, and Senior Advisor at Atlas Merchant Capital LLC.
Former jobs include Director at TheStreet, Inc. from 2003 to 2009, Director at Gevity HR, Inc. from 2004 to 2009, Director at Levity HR, Inc., Independent Director at Leo Holdings Corp.
II, and Professor at Harvard Business School.
Education includes undergraduate, graduate, and MBA degrees from Harvard University.
Known holdings in public companies
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
| 08/04/2025 | 24,931 ( 0.01% ) | 3 M $ | 30/12/2025 | |
| 08/04/2025 | 591 ( 0% ) | 56 216 $ | 30/12/2025 |
Jeffrey Sonnenfeld active positions
| Companies | Position | Start |
|---|---|---|
| LENNAR CORPORATION | Director/Board Member | 31/08/2005 |
Chief Executive Leadership Institute
 Chief Executive Leadership Institute Miscellaneous Commercial ServicesCommercial Services Operates as a leadership organization | Chief Executive Officer | - |
Yale School of Management
 Yale School of Management Functions as a College/University | Corporate Officer/Principal | 31/12/2000 |
National Council on Aging, Inc.
 National Council on Aging, Inc. Miscellaneous Commercial ServicesCommercial Services Operates human rights and health service organisations | Director/Board Member | - |
AdvanceCT
 AdvanceCT General GovernmentGovernment AdvanceCT is a company that operates in the Finance industry. It is based in Rocky Hill, CT. John Bourdeaux has been the CEO of the company since 2021. | Director/Board Member | - |
Investors' Exchange LLC
 Investors' Exchange LLC Provides stock exchange services | Director/Board Member | - |
Atlas Merchant Capital LLC
 Atlas Merchant Capital LLC Atlas Merchant Capital invests in companies located across the globe, primarily in the United States. The firm focuses on the financial services. It provides financing for buyouts and growth stage capital requirements and invests in both private and public companies. | Consultant / Advisor | - |
Former positions of Jeffrey Sonnenfeld
| Companies | Position | End |
|---|---|---|
| THESTREET, INC. | Director/Board Member | 22/06/2009 |
Gevity HR, Inc.
 Gevity HR, Inc. Personnel ServicesCommercial Services Provides outsourced human capital management solutions services | Director/Board Member | 31/05/2009 |
| ░░░░░░░ ░░░░░░░░ ░░░░░░ | ░░░░░░░░░ ░░░░░░░░░░░░░░░░░ | - |
| ░░░ ░░░░░░░░ ░░░░░ ░░ | ░░░░░░░░░░░░░░ ░░░░░░ | - |
| ░░░░░░ ░░░ ░░░░ | ░░░░░░░░░░░░░░ ░░░░░░ | - |
Training of Jeffrey Sonnenfeld
Experiences
Positions held
Connections
1st degree connections
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 13 |
|---|---|
Lennar Corp.
 Lennar Corp. HomebuildingConsumer Durables Engages in construction and sale of home & multifamily buildings and provides mortgage financing services | Consumer Durables |
TheStreet, Inc.
 TheStreet, Inc. Commercial Printing/FormsCommercial Services Provides on line business and investment content services | Commercial Services |
Harvard University
 Harvard University Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Gevity HR, Inc.
Gevity HR, Inc. Personnel ServicesCommercial Services Provides outsourced human capital management solutions services | Commercial Services |
National Council on Aging, Inc.
National Council on Aging, Inc. Miscellaneous Commercial ServicesCommercial Services Operates human rights and health service organisations | Commercial Services |
Chief Executive Leadership Institute
Chief Executive Leadership Institute Miscellaneous Commercial ServicesCommercial Services Operates as a leadership organization | Commercial Services |
AdvanceCT
AdvanceCT General GovernmentGovernment AdvanceCT is a company that operates in the Finance industry. It is based in Rocky Hill, CT. John Bourdeaux has been the CEO of the company since 2021. | Government |
Levity HR, Inc. | |
Harvard Business School
 Harvard Business School Functions as a College/University | |
Yale School of Management
Yale School of Management Functions as a College/University | |
Atlas Merchant Capital LLC
Atlas Merchant Capital LLC Atlas Merchant Capital invests in companies located across the globe, primarily in the United States. The firm focuses on the financial services. It provides financing for buyouts and growth stage capital requirements and invests in both private and public companies. | |
Investors' Exchange LLC
Investors' Exchange LLC Provides stock exchange services | |
Leo Holdings Corp. II
 Leo Holdings Corp. II Operates as a blank check company |
- Stock Market
- Insiders
- Jeffrey Sonnenfeld
