We deliver results you can trust.

About Us

In 2016, Ai SPARK began the initial stages of research that would eventually provide the embers to ignite a new age in credit risk analysis. Today, powered by the continual evolution of machine-learning technologies and backed by over 90 years’ collective experience, Ai SPARK redefines the CMBS and CRE industry by producing instant, objective, and continuous risk rating results.

Born of precision and inspired by simplicity, the Transparent Autonomous Rating Algorithm (TARA™) heralds a new age in credit risk assessment. Forged from decades of knowledge, experience and insight, a continual iterative machine-learning process allows TARA™ to effectively and effortlessly produce clear, concise and objective risk assessments in real-time.

By providing unprecedented accuracy and immovable principles through industry-defining artificial intelligence, TARA™ does not replace the human element but rather provides the platform for precise and unwavering risk analysis. TARA™, therefore, is able to clear one of the industry’s biggest hurdles by completely removing any ability to skew or manipulate market participant behaviour, providing a constantly improving level of precision.

Meet the team

Kim Diamond

Executive Chair

Ms. Diamond has over 30 years of experience in the commercial real estate capital and structured finance debt capital markets industries. Ms. Diamond has served on the Board of Governors of the Commercial Real Estate Finance Council (CREFC), where she held positions as Programming Chair, Membership Chair and Treasurer and has been a recipient of the trade association’s prestigious Founder’s Award.

David Nabwangu

Founder, CEO

A former head of CMBS research for a leading international rating agency, David Nabwangu received his MBA from Duke University Fuqua School of Business, while also earning an MBI from Erasmus University and a Certificate of Machine Learning from Stanford University. David is also an active editorial board member and a regular contributor to the Commercial Real Estate Finance World Journal.

Mark Jackson

Co-Founder, Strategic Partnerships

Formally, the Integrated SaaS Solutions Sales Lead at Datalogics, an Adobe funded company. Mark built alliance partnerships that supported clients in 22 countries. He served as a subject matter expert for data management, successfully guiding over 250 corporate and government entities through the evaluation and integration of technologies used to develop custom solutions.

Pat Sargent


Focussing on structured finance and capital markets transactions, Pat Sargent holds extensive experience in commercial real estate finance and securitization, and represents a national credit rating agency in commercial mortgage securitizations and CRE CLO transactions.

Jack Cohen


Holding both an M.S. in Construction Management and a B.S. in Civil Engineering from Stanford University, Jack Cohen is currently President and Chief Innovation Officer at Stronghill Capital. Mr. Cohen is also a non executive Vice-Chairman at 3650 REIT while holding the title of CEO at advisory and investment firm Darkknight Ventures, LLC.