Ben Fash is the CEO and Managing Director of Fluence Corporation, bringing more than 20 years of water-industry and capital-markets experience. He combines deep financial operating expertise with a strong track record in M&A, capital raising, company building and strategic leadership.

Mr. Fash joined Fluence in 2023 as CFO, where he played a key role in the company’s strategic transition and turnaround. Previously, he served as CFO of Dumas Mining and as EVP & CFO of Newterra, a global provider of modular water and wastewater treatment solutions. At Newterra, he partnered with private equity owners to double the size of the business through organic growth and M&A while dramatically increasing profitability and improving cash flow management, culminating in a successful exit in 2020.

Earlier in his career, Mr. Fash worked in private equity at Birch Hill Equity Partners and began his career in investment banking at Credit Suisse and RBC Capital Markets.

Mr. Fash graduated with a degree in Economics and Law from Williams College in Massachusetts.

Natalya Medinina serves as the VP, Corporate Controller of Fluence, where she is responsible for accounting operations, including financial reports, internal controls and budgeting.

Ms. Medinina has 20 years of experience in US GAAP and IFRS reporting, technical accounting, internal controls and FP&A.
Prior to joining Fluence, she was responsible for consolidation and internal reporting as a senior manager, accounting, at Sojitz Corporation of America, a US subsidiary of the Japanese integrated global trading company. Prior to that, Ms. Medinina worked as an internal audit manager and a consolidation and internal reporting manager for Quintiles Transnational Corporation (now iQVIA), an American multinational company serving the combined industries of health information technology and clinical research. Ms. Medinina began her career as a public accountant with KPMG.

Ms. Medinina is a NY State CPA and a Chartered Certified Accountant (ACCA). She received her B.S. in Accounting from the State University of Ivanovo, Russia.

As Chief Growth Officer at Fluence, Rick Cisterna is responsible for developing and implementing Fluence’s strategies for revenue growth and market expansion in high priority markets, by analyzing market trends, market drivers, competition, products and solutions, pricing, sales approach and channel partnerships. Mr. Cisterna oversees Fluence’s Global Water Services business unit, key account management, marketing, and rep and agent networks, and ensures consistent reporting and incentives for our global sales team.

Mr. Cisterna brings 30 years of executive leadership and business development experience in the water and wastewater sector and has directed the development of more than US $1 billion in projects across municipal, industrial and commercial markets.

Prior to joining Fluence, Mr. Cisterna was the Founder and President of Renewable Organics Infrastructure, a consulting and project development firm specializing in sustainable infrastructure. Prior to this, Rick served as Executive Vice President of Business Development at Natural Systems Utilities, where he advanced decentralized water infrastructure solutions. Mr. Cisterna previously spent nearly two decades at Hazen and Sawyer as a partner, leading business development, corporate strategic planning and major project implementation.

Mr. Cisterna holds an M.S. in Environmental Engineering from Stanford University and a B.S. in Civil Engineering from the University of Nevada, Reno.