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What Can We Do for You?

  • Engagement
  • Activism/Proxy Contests
  • Thought Leadership
  • Transactional Services
  • Benchmarking

A True Governance Leader

We provide customized governance solutions to institutional investors and companies. From creating branded thought leadership, to advising investors and targeted companies in activist situations, to assisting start-ups, Sinclair Capital has been the quiet ingredient for corporate governance success in scores of situations across four continents.

Contact Us Today

(646) 734 4012
What Can We Do for You?

  • Fiduciary Reviews
  • Creditor Committee Representation
  • Service as Independent Fiduciary
  • Crisis Management

Putting Your Money First

Whether it’s reviewing policies, procedures, and their implementation for institutional investors, or jumping headfirst into the restructurings of multi-billion-dollar enterprises, we always act according to fiduciary standards. It’s your money. We just help maximize it.

What Can We Do for You?

  • Self-Diagnosis and Firm Positioning
  • Product Development
  • ESG Integration
  • Policy and Procedure Review/Development

Differentiated Actionable Advice

Sinclair’s projects succeed because we begin by deeply understanding the client. We suggest how to reach goals in an actionable way; within the constraints, resources, strengths and sensitivities of the client. Being high-touch means we’re not the least expensive. But it also means our recommendations are adopted and used.

What Can We Do for You?

  • Corporate Board
  • Investment Committee
  • Private Company
  • Advisory Board

Independent Thinking, Collaborative Output

We are frequently called upon when skilled board members are needed the most — for a start-up, in conflicts, during a crisis, when a major new program/product is due to launch. The result? Our founder, Jon Lukomnik, has been honored three times by the National Association of Corporate Directors.


Innovation – Experience – Common Sense

Since 2000, Sinclair has helped resolve thorny issues for asset owners, asset managers, corporations, trade associations, NGOs and others across four continents.

Our experiences and skills often lead to innovative solutions, but they are always contextualized by the resources, constraints and culture of each specific client. We have found that approach – plus a generous helping of common sense – results in recommendations that get adopted, implemented and benefit our clients.

Customized Solutions For Asset Owners, Asset Managers, and Companies

Why Choose Sinclair?

Sinclair limits its clients to no more than six at any one time. That results in a deep understanding of each client and its needs. Recommendations are bespoke and take into account the culture, resources and constraints of each situation, resulting in a very high adoption rate.


How We Work

Our flexible, customized approach to problem solving means clients benefit from appropriate world-class resources without having to bear the cost of maintaining a large consultancy’s general overhead. We are also proud to be part of the Funston Advisory Services Expert Network.

Our Clients

Our institutional investor clients range from some of the largest to focused boutiques, as well as corporations, law firms, investor relations firms, trade organizations and NGOs. Their one common trait: Passion about understanding why and how to undertake a particular course of action, rather than just following the crowd.

The Mind of An Institutional Investor

Forbes calls Sinclair’s managing partner “one of the pioneers of modern corporate governance”. He’s a long-time institutional investor with a unique eye for examining long-held assumptions and for breaking down the usual silos between different practice areas, as well as between practitioners and academics. He is pleased to provide industry insights to our clients.

Jon Lukomnik

Forbes calls Sinclair Capital LLC founder Jon Lukomnik “one of the pioneers of modern corporate governance”. He has consulted to institutional investors with aggregate assets of $1 trillion and has himself been the fiduciary for assets of more than $100 billion.


He is a member of the Deloitte Audit Quality Advisory Committee, the Standing Advisory Group of the Public Company Accounting Oversight Board, and the Board of Trustees of the Van Eck family of US mutual funds, insurance trusts and European UCITs. He is also a senior fellow for the High Meadows Institute.


Jon has served as investment advisor for New York City’s pension funds, was the executive director of the Investor Responsibility Research Center Institute, and has been a director for public companies, private companies, not-for-profit corporations and litigation trusts. He was a member of the official creditors committee which rehabilitated WorldCom following its fraud and bankruptcy,


Jon has published 200 articles in academic and practitioner journals. His most recent book is What They Do with Your Money. His previous book, The New Capitalists, was a Financial Times pick of the year.


The International Corporate Governance Network awarded Jon its Excellence in Corporate Governance Prize, the Director and Chief Risk Officers honored him with its inaugural “Exemplar” award and the National Association of Corporate Directors (USA) has three times named him one of the 100 most influential people in American corporate governance. Other awards include recognition by Ethishpere Magazine and Global Proxy Watch.


“We believe profoundly in the importance of the finance industry. But asset management, like other parts of the finance industry, must be able to demonstrate that it fulfils a clear purpose. As this paper argues, if that is to happen, we have work to do.”  – Tracy Blackwell, CEO, Pension Insurance Corporation, plc., and David Pitt-Watson, Pembroke Visiting Professor of Finance, Cambridge University.


“For anyone who cares about reconnecting wealth creation and social justice, this is a very welcome report”  – Rt. Hon. Liam Byrne, Head of the All-Party Parliamentary Group on Inclusive Growth


“The value of this paper is that it takes the economic importance of the asset management industry as a given, and helps frame ESG and CSR activities in their wider context.” – William Wright, Managing Director, New Financial.

“This fine book provides remarkable insights into what has gone wrong in our financial institutions and markets. In its call for action by us—we investors who collectively own corporate America—the authors offer clear and actionable steps that we can take to build a corporate world that serves our own interests, not Wall Street’s.” —John C. Bogle, founder and former chief, The Vanguard Group


“Not content simply to identify the problem, the authors propose creative (principles-based) solutions. If you care about the role of finance in today’s economy, read this provocative, compelling book.” —David Swensen, Chief Investment Officer, Yale University


“A new book by three of the best thinkers in financial sustainability . . . does an outstanding job of fusing the public necessity and investor rationale for sustainable investment. . . . The timing of this book is impeccable, and it is required reading.” —Hugh Whelan, ESG Magazine

“Pick of the Year” – Financial Times


“Companies have become as vital to society as governments, but their managers face intensifying pressure to be accountable. Finally, here are insights into the ways investors are making that happen. In The New Capitalists, corporate executives, shareholders, politicians, and citizens alike will find the pointers they need. The reward is nothing less than the chance to make globalization safe for both profit and social equity.” — James D. Wolfensohn, Chairman, Wolfensohn & Company, LLC, and former President of the World Bank


“…a fine, richly reported account of how things do and should work in a very imperfect shareholder democracy.” – BusinessWeek