Tom Diemer

About Tom Diemer

Authentic and pragmatic leader who is passionate about developing talent and organizational capabilities while executing complex business agendas. With a focus on leadership behaviors combined with thoughtful tactical and strategic thinking and execution, I have driven significant business value enhancement at several organizations. I emphasize a collaborative transparent approach to timely and decisive decision making. I am proud of the significant value I have created for stakeholders including the generation of over $30B in free cash flow for AIG/Corebridge and supporting a 50% YOY increase in share price for Lincoln. Most importantly, I am honored to have played a small part in the development of a number of senior leaders in the financial services industry. Most recently, I worked with two “new” executive leaders at Security Benefit to support their ascension to the executive team while also delivering on a robust business agenda. I have expertise in: CEO/strategic business partnership, capital allocation, private equity (Executive/Board level), FP & A, controllership, SEC filings (10Q/10K/S-1), organizational design/buildout, SOX controls, investor relations, M&A (negotiation/diligence/integration), board/regulatory engagement, capital markets, ALM, risk management, and people/team development.

Experience

1. Group Chief Financial Officer

   Trimont

   Jan 2026 — Present · Atlanta, GA, US

   Lead global finance team responsible for financial reporting, treasury, tax, FP & A, investor relations, capital markets and balance sheet management for a leader in global commercial real estate loan services and partner for CRE lenders and investors with presence in North America, EMEA, Australia and India.

Education

• Fordham University

  Bachelor of Science - BS, Accounting

• NYU Stern School of Business

  Master of Business Administration - MBA, Finance and Information Systems