![Sarah Tomolonius](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>)
Sarah Tomolonius
Director/Board Member at
QUEST RESOURCE HOLDING CORPORATION
Net worth: 118 173 $ as of 2026-06-29
Profile
Sarah R.
Tomolonius is the founder of Sustainability Investment Leadership Council, founded in 2015, holding the title of Vice Chairman since 2015.
Ms. Tomolonius is also the founder of Sino International Agricultur..
Ms. Tomolonius currently serves as Independent Director at Quest Resource Holding Corp.
since 2016 and as Partner at M13 Ventures Management LLC since 2020.
Former positions include Research Analyst-Corporate & Public Affairs Group at Edelman & Co Ltd from 2005 to 2007, Program Assistant-Water & Coastal Program at Natural Resources Defense Council, Inc. from 2002 to 2005, Associate at Citigroup Private Equity LP from 2008 to 2010, Vice President-Marketing & Investor Relations at Arlon Group LLC from 2012 to 2018, and President at Hearts Speak from 2014 to 2017.
Education includes graduate degree from The Trustees of Columbia University in The City of New York in 2009 and undergraduate degree from Vassar College.
Known holdings in public companies
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
| 2026-06-29 | 93,788 ( 0.45% ) | 118 173 $ | 2026-06-29 |
Sarah Tomolonius active positions
| Companies | Position | Start |
|---|---|---|
| QUEST RESOURCE HOLDING CORPORATION | Director/Board Member | 2016-09-20 |
Sino International Agricultur | Founder | - |
Sustainability Investment Leadership Council
 Sustainability Investment Leadership Council Financial ConglomeratesFinance Provides investment, accounting and legal services | Founder | 2014-12-31 |
M13 Ventures Management LLC
 M13 Ventures Management LLC Investment ManagersFinance M13 Ventures invests in companies located in the United States. The firm focuses on Artificial Intelligence, commerce, crypto, health, money and work. It participates in pre-seed, seed and early stage transactions. | Private Equity Investor | - |
Former positions of Sarah Tomolonius
| Companies | Position | End |
|---|---|---|
Arlon Group LLC
 Arlon Group LLC Investment ManagersFinance Provides investment services | Investor Relations Contact | 2018-05-31 |
Hearts Speak
 Hearts Speak Miscellaneous Commercial ServicesCommercial Services Engages in uniting art and advocacy to increase the visibility of shelter animals | President | 2017-01-31 |
Citigroup Private Equity LP
 Citigroup Private Equity LP Investment ManagersFinance Citigroup Private Equity invests in companies located in the US. The firm target companies operating in the fields of broad range of sectors. It provides financing for buyout transactions. | Public Communications Contact | 2010-11-30 |
Edelman & Co Ltd
 Edelman & Co Ltd Miscellaneous Commercial ServicesCommercial Services Provides financial consulting on corporate mergers and acquisitions | Corporate Officer/Principal | 2007-08-31 |
Natural Resources Defense Council, Inc.
 Natural Resources Defense Council, Inc. Miscellaneous Commercial ServicesCommercial Services Provides environmental protection services | Corporate Officer/Principal | 2005-08-31 |
Training of Sarah Tomolonius
Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Connections
85
1st degree connections
11
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 11 |
|---|---|
Edelman & Co Ltd
Edelman & Co Ltd Miscellaneous Commercial ServicesCommercial Services Provides financial consulting on corporate mergers and acquisitions | Commercial Services |
The Trustees of Columbia University in The City of New York
 The Trustees of Columbia University in The City of New York Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Vassar College
 Vassar College Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Natural Resources Defense Council, Inc.
Natural Resources Defense Council, Inc. Miscellaneous Commercial ServicesCommercial Services Provides environmental protection services | Commercial Services |
Citigroup Private Equity LP
Citigroup Private Equity LP Investment ManagersFinance Citigroup Private Equity invests in companies located in the US. The firm target companies operating in the fields of broad range of sectors. It provides financing for buyout transactions. | Finance |
M13 Ventures Management LLC
M13 Ventures Management LLC Investment ManagersFinance M13 Ventures invests in companies located in the United States. The firm focuses on Artificial Intelligence, commerce, crypto, health, money and work. It participates in pre-seed, seed and early stage transactions. | Finance |
Sino International Agricultur | |
Arlon Group LLC
Arlon Group LLC Investment ManagersFinance Provides investment services | Finance |
Quest Resource Holding Corp.
 Quest Resource Holding Corp. Environmental ServicesIndustrial Services Provides reuse, recycling and waste streams disposal solutions | Industrial Services |
Hearts Speak
Hearts Speak Miscellaneous Commercial ServicesCommercial Services Engages in uniting art and advocacy to increase the visibility of shelter animals | Commercial Services |
Sustainability Investment Leadership Council
Sustainability Investment Leadership Council Financial ConglomeratesFinance Provides investment, accounting and legal services | Finance |
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