![Heather Kiessling](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>)
Heather Kiessling
Director of Finance/CFO at
ASP ISOTOPES INC.
Net worth: 12 M $ as of 31/05/2026
Profile
Currently, Heather Kiessling is the Director at American Type Culture Collection since 2021 and the Chief Financial Officer at ASP Isotopes, Inc. starting in 2024.
Formerly, Ms. Kiessling was the Managing Director at Danforth Advisors LLC and an Auditor at Pricewaterhouse LLP.
Education includes an MBA from Stephen M.
Ross School of Business and an undergraduate degree from the University of California San Diego.
Known holdings in public companies
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
ASP ISOTOPES, INC. 1.23% | 28/05/2026 | 1,549,376 ( 1.23% ) | 12 M $ | 31/05/2026 |
Heather Kiessling active positions
| Companies | Position | Start |
|---|---|---|
| ASP ISOTOPES INC. | Director of Finance/CFO | 01/07/2024 |
American Type Culture Collection
 American Type Culture Collection BiotechnologyHealth Technology Provides biological products | Director/Board Member | 01/09/2021 |
Former positions of Heather Kiessling
| Companies | Position | End |
|---|---|---|
Pricewaterhouse LLP
 Pricewaterhouse LLP Miscellaneous Commercial ServicesCommercial Services Provides accounting services | Comptroller/Controller/Auditor | - |
Danforth Advisors LLC
 Danforth Advisors LLC Miscellaneous Commercial ServicesCommercial Services Provides strategic advisory and operational execution services for corporate, clinical & commercial sectors | Corporate Officer/Principal | - |
Training of Heather Kiessling
Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Connections
6
1st degree connections
6
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 6 |
|---|---|
American Type Culture Collection
American Type Culture Collection BiotechnologyHealth Technology Provides biological products | Health Technology |
Pricewaterhouse LLP
Pricewaterhouse LLP Miscellaneous Commercial ServicesCommercial Services Provides accounting services | Commercial Services |
University of California San Diego
 University of California San Diego Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Stephen M. Ross School of Business
 Stephen M. Ross School of Business Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Danforth Advisors LLC
Danforth Advisors LLC Miscellaneous Commercial ServicesCommercial Services Provides strategic advisory and operational execution services for corporate, clinical & commercial sectors | Commercial Services |
ASP Isotopes, Inc.
 ASP Isotopes, Inc. Pharmaceuticals: MajorHealth Technology Operates as a pre-commercial stage materials company that produces, distributes, markets and sells isotopes | Health Technology |
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