Mary Mandanas
Director/Board Member at ENERGY VAULT HOLDINGS, INC.
Net worth: 170 711 $ as of 2024-03-30
Profile
Mary Beth Mandanas is currently the Chief Executive Officer at Onyx Renewable Partners LP and an Independent Director at Energy Vault Holdings, Inc. She has previously worked as a Managing Director at Citigroup, Inc. and Utility Corp.
She was also the Managing Director at IEG (Deutschland) GmbH from 2007 to 2013.
Ms. Mandanas has served as an Independent Director at TortoiseEcofin Acquisition Corp.
III from 2021 to 2023 and as the Head-Corporate Banking at RBC Capital Markets LLC from 2013 to 2015.
She has also worked as a Vice President at Bank of America, NA (Charlotte, North Carolina).
Ms. Mandanas has served as a Trustee at University of South Carolina Business Partnership Foundation.
She has an MBA from Vanderbilt University and an undergraduate degree from the University of South Carolina.
Known holdings in public companies
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
| 2023-05-24 | 95,369 ( 0.06% ) | 170 711 $ | 2024-03-30 |
Mary Mandanas active positions
| Companies | Position | Start |
|---|---|---|
| ENERGY VAULT HOLDINGS, INC. | Director/Board Member | 2022-02-23 |
Onyx Renewable Partners LP
 Onyx Renewable Partners LP Alternative Power GenerationUtilities Onyx Renewable Partners LP engages in renewable and environment services. The firm specializes in stage development capability and capital, partnerships and large acquisitions. The company was founded by Matthew Rosenblum and is headquartered in New York, NY. | Chief Executive Officer | 2021-12-31 |
Former positions of Mary Mandanas
| Companies | Position | End |
|---|---|---|
| TORTOISEECOFIN ACQUISITION CORP. III | Director/Board Member | 2023-06-16 |
Sol Systems LLC
 Sol Systems LLC Engineering & ConstructionIndustrial Services Sol Systems LLC develops and finances solar energy projects. It services encompass, investment management, solar project financing, project acquisitions, tax equity, asset management, construction and term debt, and solar renewable energy credit services. The firm serves corporations, insurance companies, utilities, banks, family offices, and individuals. The company was founded by Yuri Horwitz and George Ashton in 2008 and is headquartered in Washington, DC. | Chief Investment Officer | 2021-07-31 |
CleanChoice Energy, Inc.
 CleanChoice Energy, Inc. Electric UtilitiesUtilities Cleanchoice Energy, Inc. supplies clean renewable energy. The firm produces energy for small business and community solar. The company was founded by Tom Matzzie in 2010 and is headquartered in Washington, DC. | Corporate Officer/Principal | 2020-04-30 |
RBC Capital Markets LLC
 RBC Capital Markets LLC Investment Banks/BrokersFinance RBC Capital Markets LLC is a full-service brokerage and financial services firm headquartered in New York City. They are a direct subsidiary of RBC USA Holdco Corp. and a wholly-owned indirect subsidiary of Royal Bank of Canada (TSE, NYSE: RY). Founded in 2010, the firm is comprised of 3 major business lines: the Private Client Group, the Fixed-Income Group and the Clearing and Execution Services Group. The Private Client Group serves individual investors, while the Fixed-Income Group provides services to institutions, municipalities and non-profit organizations. The Clearing and Execution Services Group is a provider of clearing and execution services to independent brokers/dealers throughout the US. RBC Capital Markets focuses on the following sectors: communications, media, consumer/retail, diversified industries, energy, financial institutions, forest products, healthcare, infrastructure finance, mining & metals, real estate, social infrastructure, technology and the US municipal markets. | Corporate Officer/Principal | 2014-12-31 |
IEG (Deutschland) GmbH
 IEG (Deutschland) GmbH Investment Banks/BrokersFinance IEG (Deutschland) GmbH engages in the provision of investment banking services. It focuses on medium-sized transactions in the internet, technology, and services industries. The company was founded in 1999 and is headquartered in Berlin, Germany. | Chief Executive Officer | 2012-12-31 |
Training of Mary Mandanas
| Vanderbilt University | Masters Business Admin |
| University of South Carolina | Undergraduate Degree |
Experiences
Positions held
Connections
1st degree connections
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Listed companies | 3 |
|---|---|
| CITIGROUP INC. | Finance |
| TORTOISEECOFIN ACQUISITION CORP. III | Finance |
| ENERGY VAULT HOLDINGS, INC. | Producer Manufacturing |
| Private companies | 8 |
|---|---|
Utility Corp.
 Utility Corp. Investment Trusts/Mutual FundsMiscellaneous Utility Corp. operates as closed-end management investment trust. It provides investors with a stable monthly dividend stream and capital appreciation potential through the investment in a portfolio of high quality common shares of selected publicly listed Canadian utility and telecommunication companies. The company is headquartered in Toronto, Canada. | Miscellaneous |
RBC Capital Markets LLC
RBC Capital Markets LLC Investment Banks/BrokersFinance RBC Capital Markets LLC is a full-service brokerage and financial services firm headquartered in New York City. They are a direct subsidiary of RBC USA Holdco Corp. and a wholly-owned indirect subsidiary of Royal Bank of Canada (TSE, NYSE: RY). Founded in 2010, the firm is comprised of 3 major business lines: the Private Client Group, the Fixed-Income Group and the Clearing and Execution Services Group. The Private Client Group serves individual investors, while the Fixed-Income Group provides services to institutions, municipalities and non-profit organizations. The Clearing and Execution Services Group is a provider of clearing and execution services to independent brokers/dealers throughout the US. RBC Capital Markets focuses on the following sectors: communications, media, consumer/retail, diversified industries, energy, financial institutions, forest products, healthcare, infrastructure finance, mining & metals, real estate, social infrastructure, technology and the US municipal markets. | Finance |
Bank of America, NA (Charlotte, North Carolina)
 Bank of America, NA (Charlotte, North Carolina) Major BanksFinance Bank of America, NA engages in the provision of commercial banking services. It offers financing, checking and savings accounts, and investment banking for individual clients. The company was founded on March 1, 1927 and is headquartered in Charlotte, NC. | Finance |
| University of South Carolina Business Partnership Foundati | |
IEG (Deutschland) GmbH
IEG (Deutschland) GmbH Investment Banks/BrokersFinance IEG (Deutschland) GmbH engages in the provision of investment banking services. It focuses on medium-sized transactions in the internet, technology, and services industries. The company was founded in 1999 and is headquartered in Berlin, Germany. | Finance |
Onyx Renewable Partners LP
Onyx Renewable Partners LP Alternative Power GenerationUtilities Onyx Renewable Partners LP engages in renewable and environment services. The firm specializes in stage development capability and capital, partnerships and large acquisitions. The company was founded by Matthew Rosenblum and is headquartered in New York, NY. | Utilities |
CleanChoice Energy, Inc.
CleanChoice Energy, Inc. Electric UtilitiesUtilities Cleanchoice Energy, Inc. supplies clean renewable energy. The firm produces energy for small business and community solar. The company was founded by Tom Matzzie in 2010 and is headquartered in Washington, DC. | Utilities |
Sol Systems LLC
Sol Systems LLC Engineering & ConstructionIndustrial Services Sol Systems LLC develops and finances solar energy projects. It services encompass, investment management, solar project financing, project acquisitions, tax equity, asset management, construction and term debt, and solar renewable energy credit services. The firm serves corporations, insurance companies, utilities, banks, family offices, and individuals. The company was founded by Yuri Horwitz and George Ashton in 2008 and is headquartered in Washington, DC. | Industrial Services |
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