Jonathan Tower

Managing Partner
617.535.9928 ext. 704


Jason Sanders

Managing Director and Business Development Partner


James Robinson

Administrative Partner


Uche Osuji



Tony Eisenberg



Keith Schuman

Senior Associate


Neil Katz

Senior Assocate

Glenn Baker

Consulting Chief Financial Officer
(617) 529-5420

Mr. Jonathan D. Tower is the Founder and Managing Partner of the Arctaris Impact Fund, LP, Arctaris Royalty Partners, LLC, and three predecessor Arctaris impact investment funds. Mr. Tower invests in growth-oriented businesses in the manufacturing, technology, and services industries with heavy emphasis on underserved and underrepresented banking markets.

Mr. Tower has over 15 years of industry experience, investing in private equity and private debt, including three interim Chief Executive Officer roles in private equity-backed companies. He has worked closely with portfolio companies in the manufacturing, technology, and services industries to achieve their growth objectives, including Capterra (acquired by Gartner), Verid (acquired by EMC), QuoteShip (acquired by ICGE), Moguldom Media (acquired by InteractiveOne), and Xoom (acquired by PayPal).

Prior thereto, Mr. Tower was a Managing Director, Operating Partner and member of the Investment Committee at Dutchess Capital Management LLC. He held responsibilities both in private equity deal execution and maximizing value in portfolio companies, working with management teams to develop growth or turnaround strategies.

At Fidelity Ventures, he executed private equity and venture capital investments, focusing on the enterprise technology, security and communications sectors.

At IBM, Mr. Tower was a member of the Corporate Venture Capital, Mergers & Acquisitions and Debt Capital Market groups, where he facilitated the issuance of more than $2 billion in term debt, managed $250 million of A/R factoring transactions, led venture investments in five expansion-stage technology businesses, and executed two corporate divestitures that generated $300 million in profit.

Prior to IBM, Mr. Tower was a Co-Founder and Vice President of Business Development at From 1996 to 1999, he was a Financial Journalist at Bloomberg News. Mr. Tower has published articles on corporate finance, derivatives and risk management in Bloomberg News, Bloomberg Magazine, International Herald Tribune, and the New York Times.

Mr. Tower received an M.B.A. degree from Harvard Business School in 2002 and a B.A. degree in English and Mathematics from Georgetown University in 1996.

As Managing Director and Business Development Partner of Arctaris, Jason is focused on business development, banking relationships, transaction sourcing, loan originations, due diligence, investor and government relations and community development activities.

Prior to joining Arctaris, Jason was the President and Commercial Banking Sales Manager for Fifth Third Bank in Mid-Michigan, managing a region with $4 billion in loans and deposits. Jason has over 20 years of commercial banking leadership experience specializing in delivering creative capital solutions and developing trusted advisor relationships for growth-oriented business clients. Jason held responsibilities in leading regional banking teams, advising clients on mergers and acquisitions, debt restructure, strategic planning, economic development, growth and expansion strategies, global trade and treasury management services, debt liquidity management, and interest rate derivative management.

Jason holds a BA in Business Administration/Finance/Economics from Alma College and has served as Chairman of the Enterprise Group of Jackson (EDO), board of directors Lansing Economic Area Partnership (EDO), the Jackson County EDC/RLF Fund, Lansing Chamber of Commerce, Baker College Board of Regions, and the Jackson YMCA.

Jim brings over 25 years of investment management experience to Arctaris. In addition to his role as Administrative Partner at Arctaris, Jim founded Robinson Capital Management, LLC, the investment adviser to the Robinson Funds, in December 2012 where he oversees oversees investment strategies and processes, risk management, regulatory compliance, asset allocation modeling, external manager due diligence and selection, trading, and personnel.

Prior to founding Robinson Capital in 2012, Jim was CEO and CIO of Southfield, MI-based Telemus Capital Partners, LLC (TCP) and its subsidiary Beacon Asset Management, LLC, that previously served as the investment advisor to what have since been renamed the Robinson Funds. Earlier, Jim served for five years as the Chairman and CEO of Birmingham-based Munder Capital Management and President of the Munder Funds, where he was responsible for an investment complex with approximately $38 billion in assets under management. From 1987 to 1999, Jim served as Executive Vice President and Chief Investment Officer-Fixed Income with Munder Capital Management, when income assets under management grew to more than $20 billion from less than $100 million.

Jim holds an MBA from Carnegie Mellon University, as well as a BBS in Finance and Economics from Wayne State University.

As a Principal, Uche focuses on all phases of the investment and underwriting process, including deal origination; financial, operational, legal and management team due diligence; and post-transaction monitoring of portfolio company performance.  Uche brings over 12 years of corporate finance and corporate lending experience from Bear Stearns, Inc., The Royal Bank of Scotland, Towerview Partners, LLC and Sumitomo Mitsui Banking Corporation. Uche also spent four years as a manager in plant operations with Procter & Gamble.

Uche holds an M.B.A. from the Fuqua School of Business and a B.S.E. in Electrical Engineering from Duke University.

As a Principal, Tony is focused on transaction sourcing and due diligence, investor and government relations, and community development activities. Tony has experience in business development, capital markets, investment banking and securities law, having formerly worked with the Angola National Investment Partnership, Christofferson, Robb & Company, the Marwood Group and Patton Boggs and Blow LLP.

Tony holds an M.B.A. from Georgetown University, a J.D. from the University of Michigan and a B.B.A. from the University of Miami.

As an Senior Associate, Keith focuses on all phases of the investment and process, including deal origination, due diligence, and post-transaction monitoring. Keith brings over eight years of entrepreneurial, finance, and operational experience. Prior to joining Arctaris, Keith founded and operated Azahar Coffee Company, where he currently is a member of its Board of Directors. Keith began his career as an investment banking analyst within Citigroup’s Global Industrials practice in New York.

Keith earned his M.B.A. with Distinction from the University of Michigan’s Stephen M. Ross School of Business and received his B.A. in International Economics from the University of Colorado, Boulder. In his spare time, Keith enjoys sailing on, and swimming in the San Francisco Bay.

As a Senior Associate, Neil focuses on all phases of the investment and underwriting process, including deal origination: financial, operational, legal and management team due diligence; and post transaction monitoring of portfolio company performance. Neil is a Certified Public Accountant with over 4 years of assurance and financial due diligence experience from his tenures with both Deloitte and PWC. He has experience working with companies in the energy, manufacturing, and communications industries.

Neil holds both a B.B.A. and M.S. in Accounting from Eastern Michigan University.

As Consulting Chief Financial Officer, Glenn manages the administrative, financial, and tax operations of the Fund. This includes the development of a financial and operational strategy, metrics tied to that strategy, and the ongoing development and monitoring of control systems designed to preserve company assets and report accurate financial results.

Glenn G. Baker is a graduate of Hartwick College, and holds an MBA in International Business and Entrepreneurship from Thunderbird, School of Global Management. He is also a Certified Public Accountant. In the mid-late’90s, Mr. Baker served as Director of Finance for a Life Science Private Equity firm backed by Harvard Medical School. During his tenure, Mr. Baker developed the firm’s Consulting Department. In 1998, he founded Globe Matrix Consulting as a spin-off of the Consulting Department.

The initial focus of Globe Matrix Consulting was in providing accounting/finance services to incubators/start-ups funded by Private Equity firms. Services soon expanded, with Mr. Baker serving as Interim Director of Finance for several reputable Private Equity firms and their Portfolio Companies. Services also expanded to working on turnaround engagements and with entrepreneurs to launch and scale their respective businesses.