About Us
Transact Bank is an innovative, federally chartered and FDIC insured bank headquartered in Denver, Colorado with the sole mission of delivering payment solutions and services to merchants and channel partners globally.
Transact Bank was built for transactions, not distractions. Our banking solutions move money online, across networks, and around the world.
Our focus, technology and investments are not bogged down with consumer banking, lending or branch services, allowing us to be nimble in our response to industry trends and client needs.
Experience
The Transact Bank financial group was formed in 2018 through an acquisition of Colorado National Bank. Transact Bank is affiliated with Transact Pro (est. in 2004, principal member of Visa, Mastercard, SWIFT and SEPA), a leading payment processing and gateway provider in European Union.
Transact Bank is regulated by the U.S Department of the Treasury, Office of the Comptroller of the Currency, Western District.

The financial group was formed from:
Transact Bank
Formerly Colorado National Bank. USA Federal banking charter, Federal Reserve System direct member, member of FDIC, member of Mastercard, Visa, and SWIFT.
Transact Pro
EU financial license, Principal member of Visa, Mastercard, SWIFT and SEPA. Bank’s services for European companies are offered by financial group’s member — e-money institution Transact Pro.
Board members
Mark Moskvin
Chairman of the BoardMark Moskvin is an entrepreneur, payments innovator, and the founder, principal owner, chief executive officer and chairman of Transact Bank N.A. Mark’s career in payments dates back to 1995 when he led the payment processing arm of Norddeutsche Landesbank in his native Latvia (European Union). In 2004, Mark self-funded the launch of a new gateway services business, Transact Pro. Over time, Transact Pro became a licensed financial institution and a vertically integrated payments company. Transact Pro now processes 10 million transactions per month for 2,500 customers across Europe. Mark’s vision has always been to provide small and medium enterprise merchants as well as institutional clients with a superior cross-border and domestic payments service. To help achieve that vision, Mark purchased Colorado National Bank (CNB), a Denver-based, Federally-chartered bank, in August 2018. In March, 2020, CNB rebranded to Transact Bank N.A., a payments-focused bank. The combined resources of Transact Bank and Transact Pro create a new value chain and payments ecosystem that reduces processing costs while improving the reliability of cross-border payments. In addition to his investments in the payments industry, Mark also has a controlling interest in a technology venture, CorpData LLC, and a textile lifting manufacturer, Avocet Lifting. Mark holds a bachelor’s degree in economics and a master’s degree in international economic affairs from the University of Latvia. He now resides in Miami, Florida with his wife and their 4 children.
Read moreJohn G. Sprengle
⠀John Sprengle is a senior executive with more than 23 years of experience in the commercial banking industry and over 10 years as a cofounder and executive in a start-up that grew to become one of the largest publicly-traded REITs in its sector. He is currently the executive vice president of the Bank responsible for credit policy, administration, financial reporting, operations, and regulatory matters. John joined Colorado National Bank (now Transact Bank) in January 2011 as an executive vice president responsible for Acquisitions and Due Diligence. In March 2012, he was named chief credit officer of the Bank and in August 2012, he became the president of the Bank. From 1994 to 2005, John served in various capacities as an executive officer of Affordable Residential Communities (ARC), a manufacture home communities REIT, including chief financial officer, president, and chief operating officer. His responsibilities included the development and implementation of the company’s operating infrastructure, including policies, procedures, financial controls, management processes, and investor relations. He co-managed ARC’s initial public offering in 2004, and also managed ARC’s real estate due diligence and underwriting of all acquisitions, and was responsible for all lender relationships. Prior to cofounding ARC, John was employed by BancTEXAS Group, Inc, a Dallas-based bank holding company. As senior vice president and chief credit officer, he served as a member of the Chairman of the Credit Policy and Loan Committees and as a member of the Asset/Liability Management Committee and the Employee Compensation and Benefits Committee. John holds a BS in Business Administration from Colorado State University.
Read moreTom Bell
⠀Tom Bell joined the board in 2019. His 35+ years of extensive industry and professional experience includes mergers and acquisitions, electronic commerce, business process management and sales force effectiveness as an executive serving a wide range of industries including payments, financial services, communications, and high tech. Tom is a veteran of the payments industry, having served as the CEO of Transaction Services Group, Merchant e-Solutions, and Bank of America Merchant Services. Additionally, he served as the executive vice president of strategy and business development at First Data Corporation, where he was responsible for emerging product development as well as M&A activity and divestitures. In that role, he led the formation of the Bank of America Merchant Services joint venture with Bank of America. Previously, Bell spent 25 years at Accenture, as a managing partner in the communications and high-tech practice and spearheaded the company’s media and entertainment practice in North America. He managed Accenture’s relationship with a number of global clients, including BellSouth, Compaq Computer, Samsung Electronics, Nokia, NFL, and Harrah’s Casinos. Tom is a board member at the High Museum of Art in Atlanta. He received a bachelor’s degree in finance from Auburn University.
Read moreGuy Rounsaville, Jr.
⠀Guy Rounsaville, Jr. has a professional career spanning over 50 years, primarily in the financial services sector. He currently serves on the board of Medley Management Corp., and previously served on the boards of several banks, namely, Tri-Valley Bank, First Bank Corp., and United American Bank. In his capacity as independent consultant, he serves as General Counsel for QueensCare, a medically related non-profit corporation located in Los Angeles. Guy began his career at Wells Fargo in 1969 where he spent nearly 30 years, mostly serving as General Counsel and Corporate Secretary. Following Wells Fargo, he was with Allen Matkins as co-managing partner of the law firm’s San Francisco office and head of the firm’s corporate department. From 2001 - 2008, he held various General Counsel and Corporate Secretary positions for Visa International, LaSalle Bank/Bank of America, and the Doctors Company. Guy holds a B.A. from Stanford University where he co-captain the 1964 Stanford Football Team. He earned a J.D. from UC Hastings College of the Law. He resides in Hillsborough, California with his wife of 46 years, Lenore. They have two adult daughters.
Read moreMaxim Yaroshewsky
⠀Maxim is an experienced FinTech executive with more than 20 years of experience in banking and payment services. He currently serves as president of Transact Pro, the European-affiliate company of Transact Bank. Maxim has held senior leadership positions in business strategy and development, compliance, operations, and product line expansion. Prior to becoming president of Transact Pro, he was chief operating officer. Together with the leadership team, Maxim guided the growth of the company as it evolved to become a licensed financial institution and a principal member of Mastercard’s and Visa’s payment systems, offering gateway, acquiring and card issuing solutions. In 2016, he led the company’s initiative as founding member of the Association of Latvian Payment Services and Electronic Money Institutions. The main objective of this association is to promote development and strengthen the market position of Latvian payment service providers and electronic money institutions. Prior to TransactPro, Maxim was Head of Card Acquiring at DnB NORD Banka in Latvia. He introduced products and programs that significantly expanded the bank’s card acceptance network, market share and profitability. He led the bank’s rollout of EMV solutions for the bank’s point of sale and ATM network, as well as introduced Visa 3D Secure and Mastercard SecureCode technology solutions. Maxim holds a bachelor’s degree in economics and a master’s degree in business administration from the Baltic International Academy, as well as a diploma of business organization and management from the Moscow State University of Economics, Statistics and Informatics.
Read moreJim Feehan
⠀Jim Feehan offers more than 30 years of experience in accounting, finance and taxation. His experience includes financial reporting, budgeting, banking and investor relations, tax compliance review and staff supervision. Jim founded the CFO Advisory Group in 2002, a consulting firm that provides CFO/controller services to small and medium sized companies in various segments including start-up, real estate, finance and agriculture. In addition to CFO and controller services, the firm provides workout and liquidation services for various financial institutions and secured lenders. Jim began his career within the audit group at Coopers & Lybrand, an International CPA firm, in 1981. During his eight-year tenure, he worked with both publicly and privately held entities in the areas of taxation and attestation, rising to a manager/supervisory position in the audit and tax departments. Subsequent to his tenure at Coopers & Lybrand, he has held the position of CFO and controller for privately held entities and also provided financial consultation for numerous individuals and start-up entities. Jim served as a senior vice president of Finance, controller and director of Tax for a $500 million privately-held transportation company in the late 1990’s. Jim is a Certified Public Accountant (inactive). He is a former officer and board member of the Rocky Mountain Turnaround Management Association (TMA) and the Mobile Home Park Owners Association of Colorado. In addition, he has served and volunteered for numerous non-profit organizations. Jim holds a Master of Taxation degree from University of Denver and earned a BS in Business Administration from the University of Nebraska.
Read moreMario Bautista
⠀Mario Bautista, a seasoned FinTech executive with more than 25 years of payments experience, has held senior leadership positions in risk management, compliance, operations, and international business development and expansion. He was most recently the chief credit officer of TransFirst Inc. and TSYS Merchant Solutions, both highly regarded companies in the payments sector. While at TransFirst and TSYS, Mario led a diverse team of more than 200 members in several key functional areas, including: Credit Underwriting, Fraud Risk, Portfolio Monitoring, Credit Policy, Operational and Enterprise Risk, Remedial Risk Management (Workouts), Regulatory Compliance, and Chargebacks. Together with the executive leadership, Mario helped increase TransFirst’s enterprise valuation by at least 2.5x by creating operational efficiencies while scaling the business and entering new verticals. Prior to TransFirst, Mario was the senior credit officer for First Data International (FDI), based in the United Kingdom and responsible for driving expansion strategies in Europe and North America. Mario opened new offices, restructured existing operations and integrated new acquisitions in the UK, Germany, The Netherlands and Canada. Mario is a graduate of the executive leadership development program at Welsh, Carson, Anderson & Stowe (WCAS), a New York private-equity firm. He was also previously a member of the Mastercard Risk Advisory Council, and prior to the payments industry, Mario was a corporate banker and lender for some of the larger international commercial banks in the Asia-Pacific region. Mario holds a Bachelor’s degree in Economics from the University of Wisconsin-Eau Claire, and a Master’s degree in Finance from Northeastern University. Mario is currently the Payments Compliance Architect for Digital River, a global eCommerce and payments company. He resides in Minneapolis and Denver.
Read moreLeadership Team
Mark Moskvin
Chief Executive Officer and ChairmanMark Moskvin is an entrepreneur, payments innovator, and the founder, principal owner, chief executive officer and chairman of Transact Bank N.A. Mark’s career in payments dates back to 1995 when he led the payment processing arm of Norddeutsche Landesbank in his native Latvia (European Union). In 2004, Mark self-funded the launch of a new gateway services business, Transact Pro. Over time, Transact Pro became a licensed financial institution and a vertically integrated payments company. Transact Pro now processes 10 million transactions per month for 2,500 customers across Europe. Mark’s vision has always been to provide small and medium enterprise merchants as well as institutional clients with a superior cross-border and domestic payments service. To help achieve that vision, Mark purchased Colorado National Bank (CNB), a Denver-based, Federally-chartered bank, in August 2018. In March, 2020, CNB rebranded to Transact Bank N.A., a payments-focused bank. The combined resources of Transact Bank and Transact Pro create a new value chain and payments ecosystem that reduces processing costs while improving the reliability of cross-border payments. In addition to his investments in the payments industry, Mark also has a controlling interest in a technology venture, CorpData LLC, and a textile lifting manufacturer, Avocet Lifting. Mark holds a bachelor’s degree in economics and a master’s degree in international economic affairs from the University of Latvia. He now resides in Miami, Florida with his wife and their 4 children.
Read moreJohn G. Sprengle
Chief Operating OfficerJohn Sprengle is a senior executive with more than 23 years of experience in the commercial banking industry and over 10 years as a cofounder and executive in a start-up that grew to become one of the largest publicly-traded REITs in its sector. He is currently the executive vice president of the Bank responsible for credit policy, administration, financial reporting, operations, and regulatory matters. John joined Colorado National Bank (now Transact Bank) in January 2011 as an executive vice president responsible for Acquisitions and Due Diligence. In March 2012, he was named chief credit officer of the Bank and in August 2012, he became the president of the Bank. From 1994 to 2005, John served in various capacities as an executive officer of Affordable Residential Communities (ARC), a manufacture home communities REIT, including chief financial officer, president, and chief operating officer. His responsibilities included the development and implementation of the company’s operating infrastructure, including policies, procedures, financial controls, management processes, and investor relations. He co-managed ARC’s initial public offering in 2004, and also managed ARC’s real estate due diligence and underwriting of all acquisitions, and was responsible for all lender relationships. Prior to cofounding ARC, John was employed by BancTEXAS Group, Inc, a Dallas-based bank holding company. As senior vice president and chief credit officer, he served as a member of the Chairman of the Credit Policy and Loan Committees and as a member of the Asset/Liability Management Committee and the Employee Compensation and Benefits Committee. John holds a BS in Business Administration from Colorado State University.
Read moreMark Cook
Chief Risk OfficerMark Cook joined Transact Bank (then Colorado National Bank) in May 2019 and is a seasoned veteran of the payments industry who has managed credit and risk operations for both the issuing and acquiring sides of the industry. Mark’s extensive experience in the payment industry provides sound and proven risk management results that allow for a broad spectrum of merchant accounts including retail, e-commerce and high-risk sectors. Prior to Transact Bank, he helped Fintech startup Buy It Mobility build proprietary scoring algorithms to better manage risk on their ACH platform for the mobile payments space. Mark started his career in 1988 as a collector for General Electric Capital Corporation’s private-label issuing business, later moving into credit & risk management. In 1998 he joined ACS Merchant Services (later rebranded TransFirst) to manage all aspects of risk management for the company’s $21 billion annual processing portfolio. In 2011, Mark joined Epicor Software to launch a successful payment division dedicated to providing affordable processing solutions to existing software clients with annual merchant sales reaching $6 billion. Mark is a former member of the ETA Credit and Risk Committee and holds a bachelor’s degree in marketing from Regis University in Denver, CO.
Read moreNick Filla
General Counsel and SecretaryNick Filla is responsible for all bank legal matters, corporate governance, regulatory matters, and compliance for Transact Bank, N.A. Nick has been practicing law since graduating law school in 2005. Prior to working for Transact Bank, Nick was the General Counsel of Colorado National Bank (CNB) and its parent holding company since 2011 where he was responsible for legal matters, corporate governance, regulatory matters, compliance, enterprise risk management, bank acquisition/sale and due diligence activities, capital raising, securities, and internal audit and human resources oversight. Prior to CNB, Nick was an associate in a New York law firm focused on investment management. Nick is a member of the Colorado and Denver Bar Associations and active in supporting several charitable organizations including Brush Creek Elementary PTA, High Fives, and Phillips Exeter Academy. Nick holds a bachelor’s degree from the University of Pennsylvania, a juris doctorate from Washington University School of Law in St. Louis, and an LL.M. in taxation from the Sturm College of Law at the University of Denver. Nick resides in Eagle, Colorado with his wife and daughter, where they enjoy all aspects of mountain living including skiing, hiking, golf, fishing, rafting, and camping.
Read moreBruce Kirst
Head of Sales and Marketing (contractor)Bruce is a General Manager and Business Development leader with three decades of experience concentrated in fintech and payment processing, including positions at First Data, Elavon, Vantiv, WorldPay and Merchant e-Solutions. For the past 15 years, he has led sales and relationship management teams through the strategic development and execution of channel strategies and programs that generated hundreds of millions of dollars in revenue through partnerships with financial institutions, technology companies, ISVs, and ISOs. Since 2019, Bruce has been a strategic consultant to companies interested in monetizing payments into their cloud-based platforms (ERP, CRM, ISV, SaaS, Marketplaces). He leverages his seasoned analytical and problem-solving skills to develop and execute growth strategies and next-generation business models with an eye toward delivering operational efficiencies. Most recently, he helped fintech startup Payrix optimize the client experience for payment facilitators and their sub-merchants. Bruce began his business career with Mercantile National Bank in Dallas, which is now part of JPMorgan Chase. Bruce holds an undergraduate degree in Business Management from Tulane University. Bruce is a board member of the Friends of the First Tee of East Lake and an active fund raiser for the ALS Association of GA. He and his wife Tiffany currently reside in Brookhaven, GA.
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