Management Team

The Spruce management team has decades of experience in the consumer finance, renewable energy and software industries.

President & CEO

Nat is the president, CEO and member of the board of directors of Spruce. He is also the chairman of the board of directors of the national Solar Energy Industries Association (SEIA), advisor to the Rocky Mountain Institute, lecturer at the Institute for Sustainable Energy at Northwestern University, and member of the National Advisory Council for Grid Alternatives, which installs free solar systems for low-income families and provides solar job training. He was previously president and CEO of Clean Power Finance. Nat sold the first residential solar power purchase agreement in the U.S. when he co-founded Sunrun (NASDAQ: RUN) and served as its president and COO. Nat was subsequently the president and member of the board of directors of Acro Energy Technologies (TSX: ART). He created the Chicago Climate Exchange market-making business for Pioneer Futures and worked in power industry financial consulting at PricewaterhouseCoopers. An officer in the US Navy (Reserves), Nat is a veteran of the war in Afghanistan, where he served in the Special Forces and was awarded the Bronze Star Medal. He received a “Champion of Change” award from the White House, a “Most Admired CEO” award from the San Francisco Business Times, and was named a finalist for the Ernst & Young Entrepreneur of the Year award for Northern California. Nat has a BS from Northwestern University and an MBA from Rice University.

nat kreamer spruce
darren thompson spruce

Chief Financial Officer

As CFO, Darren oversees all of Spruce’s capital markets, accounting and control, and corporate finance activities. Darren has spent more than 25 years in the financial services industry. He was formerly the CFO and EVP of strategy at B2R Finance and, both innovative technology-enabled lending platforms. Previously, Darren was the CFO at RevolutionMoney, a financial technology and payments company that was sold to American Express in 2010. Darren also served as the SVP and head of Fannie Mae’s Credit Finance Business until 2005. Prior to Fannie, he was a managing director at Goldman Sachs and a principal at Morgan Stanley, where he raised over $30 billion in high yield and loan capital for more than 200 companies. Darren has served the White House Fellows Program as a regional judge, is a sought-after speaker on global capital markets and entrepreneurial management, and has guest lectured at The Johnson School of Business at Cornell University, and George Washington University’s graduate economics program. He serves on the board for three public mutual funds for Avenue Capital and as a Trustee for the Sidwell Friends School in Washington, DC. Darren holds a BS with honors in biochemistry from Harvard and an MBA from Harvard Business School.

Chief Operating Officer

Steve is responsible for all operational aspects of delivering Spruce’s consumer finance products, services and technology to its customers. Prior to joining the team, Steve served as a Senior Vice President at Discover Financial Services, where he led the student loans business through the integration of The Student Loan Corporation and later oversaw the largest portfolio acquisition in Discover’s history. He also managed the six-fold growth in the deposits business, which became the company’s largest funding source. Prior to Discover, Steve led underwriting and servicing operations for GMAC’s auto insurance business and held operations strategy roles at Capital One. He is an alumnus of McKinsey & Company and Andersen Consulting (now Accenture), where he served a variety of clients in the energy and financial services sectors. Steve graduated from Wesleyan University with a BA in economics and government and holds an MBA from Northwestern’s Kellogg Graduate School of Management.

steve olzewski spruce
jeff loebbaka spruce

Chief Commercial Officer

Jeff oversees Spruce’s commercial strategy development and execution. In this role, he leads the company’s sales, marketing, business development and product teams responsible for driving adoption and growth of Spruce’s platform and products. Jeff has more than 25 years of senior sales, marketing and customer service leadership experience. Prior to joining Spruce, he was senior vice president of global sales, marketing and service at Enphase Energy; while there, he grew the company’s share of the US residential and small commercial markets from 15 to 40 percent and played a key role in the company’s 2012 IPO. Before he was at Enphase, Jeff held several senior sales and marketing executive roles at Seagate Technologies, including most recently senior vice president of Europe, Middle East and Africa, and previously senior vice president of global channel sales and corporate marketing. He has also held GM and senior marketing management positions at Adaptec, Brunswick and Apple Computer. Jeff holds an MBA from Kellogg Graduate School of Management at Northwestern University and a BS in mechanical engineering from the University of Illinois.

Senior Vice President, Talent Management & Human Resources

Leslie is responsible for Spruce’s human resources, as well as all things related to recruiting, compensation, talent management and corporate environment, including education, training and culture. Leslie has spent more than 20 years developing human resource and talent strategies for both publicly and privately held companies. Prior to joining Spruce, Leslie served as the vice president of talent management for Clean Power Finance, where she was responsible for talent development and human resources. Previously, Leslie founded and managed two successful executive search firms, GreenAtom and HNC Search, and spent several years as a senior partner at Heidrick & Struggles. Leslie holds a B.A. in history from the University of California, Los Angeles.

leslie cariani spruce
nick mack spruce

Senior Vice President, General Counsel & Corporate Strategy

Nick oversees all of Spruce’s legal, corporate and contract activities, including: project finance and tax equity deals; lending facilities; consumer finance agreements; regulatory compliance for new products and geographies; privacy and data protection; project development law; intellectual property development and protection; vendor, channel and distribution agreements; dispute resolution; and general business, corporate, equity and HR matters. Nick was previously general counsel and corporate secretary for Clean Power Finance. Prior to that, he served as general counsel and corporate secretary for Sungevity. Before that, Nick was the general counsel for Mainstream Energy, the parent of REC Solar and AEE Solar. Before entering the solar industry, Nick was the deputy general counsel at Yodlee, an assistant general counsel in the Products Law Group at Sun Microsystems, and an associate attorney at Heller, Ehrman, White, & McAuliffe LLP. Nick is a founding member of the board of directors of the Solar Energy Finance Association, and co-chairs the Solar Energy Industries Association’s Consumer Protection Committee. He holds a JD from the University of California, Hastings College of Law and a BA from Georgetown University.

Board of Directors

Ben Kortlang, partner, Kleiner Perkins Caufield & Byers

Dan Oros, partner, Kleiner Perkins Caufield & Byers

Joe Kraus, general partner, Google Ventures

Nat Kreamer, president and CEO, Spruce Finance

Christian Fong, managing director, Fong Strategic Consulting LLC

Howard Norowitz, senior managing director, Stone Lion Capital