![Joseph Hammer](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>)
Joseph Hammer
Director/Board Member at
Gratitude Railroad LLC
Net worth: 978 004 $ as of 30/08/2026
Profile
Joseph Hammer is the founder of JDH Foundation.
Mr. Hammer is currently Chairman-Executive Committee at Chai Lifeline, Inc., Director at Gratitude Railroad LLC, and Director at Duvdevan Foundation.
Formerly, Mr. Hammer was Chairman at Trailblazer Merger Corp.
I and Chairman at Expion Energy, Inc. from 2026 to 2026.
Known holdings in public companies
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
12.27% | 26/03/2026 | 2,158,949 ( 12.27% ) | 978 004 $ | 30/08/2026 |
Joseph Hammer active positions
| Companies | Position | Start |
|---|---|---|
Gratitude Railroad LLC | Director/Board Member | - |
Duvdevan Foundation
 Duvdevan Foundation Miscellaneous Commercial ServicesCommercial Services Duvdevan Foundation is a nonprofit organization established in 2000 that unites and supports past, present, and future members of the Duvdevan unit (Unit 217) of the Israeli Defense Forces, including reservists and families of fallen soldiers. The non-profit company is based in Kinneret, Israel. The foundation preserves the unit’s heritage and fosters community among veterans and active soldiers by offering programs such as scholarships, mentoring, mental health support, social and professional events, guidance for reservists, memorial activities, and opportunities for community involvement and volunteerism. It operates a members-only platform with a job board and a store selling products made by unit alumni, and its activities are funded by membership fees and donations, managed by volunteers and overseen by professional committees. | Director/Board Member | - |
Chai Lifeline, Inc.
 Chai Lifeline, Inc. Services to the Health IndustryHealth Services Provides social, emotional & financial support to seriously ill children, their families and communities | Corporate Officer/Principal | - |
Former positions of Joseph Hammer
| Companies | Position | End |
|---|---|---|
| EXPION ENERGY, INC. | Chief Executive Officer | 23/08/2026 |
JDH Foundation
 JDH Foundation Miscellaneous Commercial ServicesCommercial Services JDH Foundation operates in the Membership Organizations industry. The non-profit company is based in Lakewood, NJ. The company was founded by Joseph Hammer. | Founder | - |
| TRAR MERGPAR | Chairman | - |
Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Connections
25
1st degree connections
6
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 6 |
|---|---|
Chai Lifeline, Inc.
Chai Lifeline, Inc. Services to the Health IndustryHealth Services Provides social, emotional & financial support to seriously ill children, their families and communities | Health Services |
Gratitude Railroad LLC | |
Expion360, Inc.
 Expion360, Inc. Electrical ProductsProducer Manufacturing Designs, manufactures and sells lithium iron phosphate batteries | Producer Manufacturing |
Trailblazer Merger Corp. I
 Trailblazer Merger Corp. I Financial ConglomeratesFinance Operates as a blank check company | Finance |
JDH Foundation
JDH Foundation Miscellaneous Commercial ServicesCommercial Services JDH Foundation operates in the Membership Organizations industry. The non-profit company is based in Lakewood, NJ. The company was founded by Joseph Hammer. | Commercial Services |
Duvdevan Foundation
Duvdevan Foundation Miscellaneous Commercial ServicesCommercial Services Duvdevan Foundation is a nonprofit organization established in 2000 that unites and supports past, present, and future members of the Duvdevan unit (Unit 217) of the Israeli Defense Forces, including reservists and families of fallen soldiers. The non-profit company is based in Kinneret, Israel. The foundation preserves the unit’s heritage and fosters community among veterans and active soldiers by offering programs such as scholarships, mentoring, mental health support, social and professional events, guidance for reservists, memorial activities, and opportunities for community involvement and volunteerism. It operates a members-only platform with a job board and a store selling products made by unit alumni, and its activities are funded by membership fees and donations, managed by volunteers and overseen by professional committees. | Commercial Services |
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