Our Firm

Personal Counsel. Global Perspective.

Wellsage Advisors provides independent advice to business owners and executives facing complex financial and strategic decisions. We guide clients through mergers and acquisitions, executive compensation, valuation, and business transitions — applying judgment built from experience across diverse transactions, from middle market capital raises to multi-billion-dollar global transactions.

Our approach is discreet, analytical, and tailored. We don’t sell products or push pre-set solutions. Instead, we provide clarity and perspective drawn from decades of experience in investment banking and corporate leadership, delivered with the accessibility and personal touch of a boutique firm.

Our services include:

  • Mergers & Acquisitions Advisory – Objective guidance on buy-side and sell-side transactions, from valuation and negotiation to execution.

  • Business Advisory & Restructuring – Strategic alternatives, capital structure optimization, and solutions for growth or transition.

  • Executive Compensation & Incentives – Board-level advice on aligning pay, retention, and shareholder value. Executive-level review of incentive contracts.

  • Education & Macro Perspectives – Clear, practical insights into markets and the global economy, designed to inform decision-making.

At Wellsage, independence is not a slogan — it is a discipline. We work solely for our clients’ interests, free from conflicts, commissions, or product bias. With roots spanning Michigan, New York City and Toronto, Canada, and perspective shaped on the global stage, we deliver institutional-quality judgment with a personal, local touch.

A clock tower on a city street at sunrise, with trees, sidewalk cafes, and buildings in the background. This is Northville, Michigan town center. The heart of Northville's business community.
A man with dark hair wearing a suit and a light pink shirt, standing in front of blurred bookshelves. David Adamse, the founder and managing principal advisor of Wellsage Advisors.

Our Founder

David Adamse, Juris Doctor & MBA, Columbia University
Founder & Principal Advisor

David Adamse founded Wellsage Advisors to bring independent, institutional-quality counsel to executives and business owners making high-stakes decisions. He holds both a law degree and a master’s in business administration from Columbia University, where he was recognized as a Kent Scholar, inducted into Beta Gamma Sigma, and awarded the Sonkin Family Prize for Value Investing.

David’s career reflects both depth and breadth across finance, markets, strategy, risk management and leadership:

  • Corporate Leadership – As Global Head of Strategic Finance at HARMAN International (a Samsung company), David led and advised on valuation, financial planning and analysis, long-term strategic planning, executive and corporate incentive structures, risk management, commercial business pursuits, and treasury management for a multi-billion-dollar enterprise. David was one of three members of Harman’s Investment Committee, overseeing its employee 401k plan.

  • Investment Banking – At JPMorgan, he advised corporate clients on M&A, strategy, and capital markets transactions in JPMorgan’s Diversified Industries group. At Lazard Frères, he focused exclusively on M&A and restructuring, with experience in automotive, natural resources, and both alternative and traditional energy sectors.

  • Markets & Research – Earlier roles at Merrill Lynch and RBC Capital Markets included working on trading desks and in macro equities and fixed income research, developing proprietary trading strategies and publishing research for, and providing counsel to, global institutional clients.

This combination of boardroom experience and capital markets expertise gives David a broad vantage point — and the ability to address complex challenges with practical, actionable solutions.

David lives in Northville, Michigan with his wife and two young children. Outside of work, he enjoys time with family and is also a car and music enthusiast; David lives out his rock star dreams on guitar and drums (in his basement) and hopes to instill the same passion for music in his kids (and, possibly, neighbors). David also enjoys playing a variety of sports, including tennis, golf and basketball.


  • Founder, Wellsage Advisors

    JD / MBA Columbia University, James Kent Scholar, Gamma Beta Sigma Honors

    Prior Experience:

    Global Head of Strategic Finance, HARMAN International (a Samsung Company)

    Vice President, Investment Banking, JP Morgan, New York, New York

    Associate, Investment Banking, Lazard Freres, New York, New York

    Equity and Fixed Income Strategist, Merrill Lynch, Toronto, Canada

    Fixed Income Strategist and Economist, RBC Capital Markets, Toronto, Canada

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