Alan Tank

Founder, Managing Partner
Mr. Tank is a founder, Managing Partner of RES and Chief Operating Officer of RES Mr. Tank has worked in the agricultural, renewable energy and risk management sectors since 1981. In 2000 Mr. Tank founded and served as the Chief Executive Officer/Managing Director of AgCert International plc. AgCert would become one of the world leaders in the production and sale of agriculturally derived greenhouse gas emission reductions which are utilized to satisfy the requirements of the Kyoto Protocol and the European Union Emission Trading Scheme. Headquartered in Ireland, AgCert generates emission reductions from anaerobic digestion projects on more than 500 livestock farms, largely in Brazil and Mexico, to reduce greenhouse gas emissions related to global warming and climate change. Through scaled application of science and proprietary processes and procedures, AgCert produces a large, consistent and permanent source of Greenhouse Gas emission reductions. The company's greenhouse gas reduction methodology received approval from the CDM Executive Board of the United Nations Framework Convention on Climate Change. AgCert was acquired by the AES Corporation in 2008. From 1995 to 2000, Mr. Tank was the CEO of the National Pork Producers Council, one of the nation's largest agricultural commodity organizations. The NPPC is often recognized by its innovative marketing campaign “Pork, The Other White Meat”. Under his leadership, the widely proclaimed National Environmental Dialogue on Pork Production was initiated and completed which established a new standard of environmental performance for the U.S. pork industry. Upon his departure from NPPC, Mr. Tank was described by Feedstuffs magazine as “one of agriculture's most visible provocateurs of change”. Mr. Tank was raised on a diversified crop and livestock farm in Iowa and is a graduate of Iowa State University.

Brian Barlia

Founder, Managing Partner
Mr. Barlia is a founder, Managing Partner and serves as the Chief Operating Officer of RES. He is also a Managing Member of RES development and operations subsidiaries RES Services NC LLC and RES Services Oregon LLC. Mr. Barlia has been in the commercial real estate industry, including real estate development, management and construction, since 1985. He founded Peak Corporation in 1987. Peak has focused on structured project finance with a specialization on utilizing tax credit financing in its project funding for urban redevelopment projects in the Washington DC metropolitan area, including commercial and affordable housing. Peak has focused on acquiring underperforming assets that require hands-on management and new strategic direction in order to maximize the income. In 1998 Mr. Barlia formed Barco LLC, an affiliated company exclusively focused on the preservation of affordable housing. The company acquires and re-develops older urban apartment properties utilizing Low Income Housing Tax Credits and Tax Exempt Bond Financing. Barco, LLC was the first company to utilize Tax Exempt Bonds to finance non-affiliated multifamily projects in the District of Columbia, now a common application. In 2001 Mr. Barlia formed Triangle Ventures LLC to joint-venture with public and private entities in the development of mixed-use and mixed-income projects at transit-oriented sites. Triangle Ventures has completed several joint venture agreements for the development of residential apartments, residential condominiums and retail offerings. A graduate of Boston University, resides in Washington DC and sits on the board of Bio-Terre Systems Inc.

Brad Karrer

Director of Corporate Operations
Mr. Karrer serves as Project Manager & Director of Corporate Operations at RES. He is a real estate professional with over ten years of specialized experience in residential, commercial and mixed use development. His specialties include: underwriting due diligence, financing and implementation, project proforma preparation and sensitivity analyses, and asset management. At RES, he is responsible for coordinating site management and engineering personnel, managing project pipeline contract administration, supporting new project development opportunities, initiating and deploying corporate technology strategies and operations plans for existing and future projects. Prior to RES, Mr. Karrer was a Housing Financial Analyst for the District of Columbia Government – Department of Housing and Community Development, Portfolio and Asset Management Division responsible for 300+ multifamily housing assets totaling $600 million. He was also a Financial Analyst for commercial and residential development at Vornado/Charles E. Smith where he modeled for a major repositioning project affected by the Base Realignment and Closure Act of 3 million square feet in the Crystal City, VA, submarket, and managed project design team and consultants in the conversion of an office building into a 265-unit Class A LEED-certified multifamily residential building. Mr. Karrer holds an MBA in Finance from the George Washington University in Washington DC, and a BS in Operations Research & Mathematical Modeling from the University of Michigan

Sean McNamara

Board of Managers & Partner
Mr. McNamara is a member of the RES Board of Managers, and a Managing Member of RES Investors, the investor group for OR 1.Mr. McNamara began his career in 1980 with O’Connor and Company working at the New York Futures Exchange and Chicago Board of Trade. In 1982 he founded McNamara Trading, Inc., a trading and floor brokerage company specializing in financial and commodity futures and options. Over the tenure of his 17 years as CEO, Mr. McNamara was a member of every major U.S. futures exchange and served on the Board of Directors for the New York Cotton Exchange, New York Futures Exchange, and as Chairman of FINEX. He was also Founder and Chairman of FINEX Europe, which is a CFTC regulated currency futures exchange located in Dublin, Ireland. In 1998 Mr. McNamara “retired” from the trading floors to start businesses that dis-intermediate opaque markets by deploying a transparent, central marketplace model. The companies he co-founded include:
  • Financial Auction Network, Inc. (“FAN”) - FAN is an internet auction based trading system designed to attract hidden pools of liquidity in equity markets. FAN was ultimately sold to NASDAQ and is the technical architecture underlying Primex.
  • Intrade, Ltd - Intrade is the world’s leading prediction market. Intrade has traded over 300 million contracts, and provides relevant and valuable financial, economic, and social information by extracting consensus information from market participants. (
  • Quadriserv, Inc. - Quadriserv has created a centrally-cleared marketplace for securities lending transactions, which is the largest opaque market remaining in the equity sector. Quadriserv has partnered with Options Clearing Corp, Eurex, and other major industry participants in this effort. (
Mr. McNamara is an angel investor and Board Member of Revolutionary Energy Solutions and Binary Event Network ( He also serves as a Board Member and Treasurer of a non-profit: SHARE ( Mr. McNamara graduated from Fairfield University in 1980 with a BS in Finance.

David Haselkorn

Partner and Advisor
Mr. Haselkorn is an advisor to RES and Board observer of its Board of Managers, and a Managing Member of RES Investors, the investor group for OR 1. Mr. Haselkorn is a corporate attorney with over 25 years of experience in corporate finance, securities, business transactions and general corporate counseling. He serves as counsel to early-stage and other privately held businesses; and represents investors who finance early-stage companies. He is a former “big law” attorney and in-house counsel. Mr. Haselkorn has advised numerous startups and startup teams; has structured, supervised and closed hundreds of financing transactions; and has been a member of the founding team of many startups including having served on several boards (as well as non-profit boards). Mr. Haselkorn also is the principal operating officer of a real estate investment company, and is an angel investor. Mr. Haselkorn holds a JD, with Honors, from The University of Chicago Law School, and an AB, with General and Special Honors, from The University of Chicago; and is a member of the NY and DC Bars. Additional Content here