Insight through collaborative partnership.

Team

Dedicated team of investment professionals and operators with sector-focused expertise and unique skill-sets.

Marcel Maculan
Founder & Managing Partner

Marcel is the Founder & Managing Partner of Opus Sierra Capital. He is responsible for all aspects of the firm’s management and investment process, including originating, structuring, and executing new investments, and portfolio company oversight.

Prior to founding Opus Sierra, Marcel was an investor at Generation Growth Capital, where he invested in aerospace & defense, medical technology, and industrial manufacturing companies. His private equity career has focused entirely on investing and fostering growth in lower middle market companies. His responsibilities have included sourcing, transaction execution, as well as working closely with portfolio company management teams to build value post-acquisition. Previously, Marcel also worked in investment banking at TKO Miller in the Diversified Industrial Manufacturing group. Marcel received a B.B.A. in Finance from the University of Wisconsin, Milwaukee.

Steen Coleman
Operating Advisor

Steen Coleman is an Operating Advisor at Opus Sierra Capital. Mr. Coleman has over 30 years of experience in the manufacturing sector in industries that include medical device, aerospace & defense, paper & packaging, and industrial automation. Mr. Coleman is currently the CFO of Paper Machinery Corporation (PMC), the world’s leading source of forming machines for paperboard cups, containers, and custom packages. Prior to joining PMC, Mr. Coleman held leadership roles in both Operations and Finance, including CEO of M2M Machining Group, a private equity-backed group of contract manufacturing companies.

Although the start of his career was with Fortune 500 companies such as Rockwell Automation, International Paper and Corning, the last 20 years have been spent creating value with privately held or private equity-backed companies. Mr. Coleman is a CPA and received his B.S. in Professional Accountancy from Mississippi State University. 

Brian Holt
Operating Advisor

Brian Holt is an Operating Advisor at Opus Sierra Capital. Mr. Holt has over 30 years of experience in the aerospace & defense sector and has held a variety of executive and operational roles during his 31 years with Derco Aerospace, A Lockheed Martin Company. Mr. Holt previously served as President for Derco Aerospace, a $500 million global aerospace & defense parts, services, and solutions company, where he was responsible for financial management, strategic and long-range business planning, and operations.

During his tenure, he oversaw the company’s significant growth and profitability, as well as development plans encompassing strategic acquisition implementations, new product introductions, organization and management development, and technology enhancements. Mr. Holt received a B.S. in Business Administration from Drake University.

Gale Pence
Operating Advisor

Gale Pence is an Operating Advisor at Opus Sierra Capital. Mr. Pence has over 30 years of experience in the industrial manufacturing sector and is an internationally experienced CEO. Mr. Pence is the Founder and CEO of Global Precision Industries, a world leader in providing engineered solutions for OEM’s and custom manufactures. His extensive manufacturing management and business development expertise has delivered large global projects, and he has developed successful overseas relationships to foster growth.

Mr. Pence serves on numerous public and private boards and continues to assist non-profit organizations. Mr. Pence received his Associates degree in Applied Science in Industrial Engineering from Milwaukee Area Technical College.

Clyde Tinnen
Executive Advisor

Clyde Tinnen is an Executive Advisor at Opus Sierra Capital. Mr. Tinnen is also a corporate partner in the Milwaukee office of Foley & Lardner, LLP and has over 20 years of experience practicing corporate law. He represents private equity firms and public and private companies in connection with the formation and operation of private investment funds, capital deployment, securities law reporting and compliance, and negotiating and structuring complex business deals.

Mr. Tinnen is a Partner in the firm’s Fund Formation & Investment Management and Capital Markets Practices, and Vice Chair of the firm’s Transactions Practice.

Mr. Tinnen received his J.D. from Columbia Law School, MBA from the University of Connecticut, and B.A. from the College of William and Mary.

Matthew Miller
Executive Advisor

Matthew Miller is an Executive Advisor at Opus Sierra Capital. Mr. Miller is also a Managing Director at Cascade Partners. He has over 30 years of advisory and corporate experience in finance, M&A, and business development, including buy and sell side work for privately held and public middle market companies.

Prior to joining Cascade Partners, he was a Managing Partner at BlueWater Partners and led the investment banking practice. Prior to that, Mr. Miller held various business development positions with several privately and publicly held middle market companies, including Prairie Group, Illinova Energy Partners, and Leggett & Platt.

Mr. Miller earned his B.G.S. from the University of Michigan and MBA in Finance from Loyola University of Chicago.