LOS ANGELES–(BUSINESS WIRE)–SierraConstellation Partners, LLC (SCP), a national interim management and advisory firm to middle-market companies in transition, announced today that it has hired Robert O. “Bob” Riiska as Managing Director. Riiska will be based at the firm’s Los Angeles headquarters.

“There are few turnaround professionals more experienced and trustworthy than Bob Riiska when it comes to stepping in at the C-level and turning businesses around,” said SCP Founder and CEO Larry Perkins. “I’m delighted to have Bob on our team to help us strengthen our west coast presence and accelerate our expansion across the country.”

Riiska has nearly three decades of turnaround and crisis management experience, including performing numerous consulting assignments and serving in interim senior management capacities. Before joining SCP, Riiska was a Senior Managing Director and Head of the Western U.S. Practice for a national turnaround and restructuring consulting firm. Riiska spent 13 years at the firm, where he led high-profile assignments including serving as Chief Restructuring Officer (CRO) of a $900 million publicly-traded staffing company; CRO of a prestige cosmetics company; and Financial Advisor to a $1.4 billion manufacturer of recreational vehicles.

Earlier in his career, Riiska led financial and operational consulting projects for a leading management consulting firm and served as Chief Financial Officer of a publicly traded IT professional services provider and software developer. He began his career as an accountant and consultant at a leading global accounting firm.

Riiska holds a Bachelor of Science Degree in Economics from the Wharton School of the University of Pennsylvania, and an M.B.A. in Finance and Marketing from the University of Chicago Booth School of Business. He is a Certified Turnaround Professional (CTP), a Certified Public Accountant (CPA), and a Chartered Global Management Accountant (CGMA).

“Having spent the last 13 years of my career in southern California, I know firsthand what an incredible organization Larry and his team have built here in Los Angeles and across the country, and I’m honored to join the team,” said Riiska. “My deep experience leading high-stakes turnaround and restructuring projects for middle-market clients will enable me to make an impact from the moment I start. I’m thrilled to get started with SCP and help continue the firm’s growth.”

Riiska joins SCP as the firm continues an impressive run of growth. In the past 12 months, SCP’s headcount has grown by over 30 percent, hiring three Managing Directors since January with a combined experience of over eight decades. In addition to its offices in Los Angeles and Houston, SCP recently opened an office in Boston under the leadership of Tom Lynch.

About SierraConstellation Partners, LLC

SierraConstellation Partners (SCP) is a national interim management and advisory firm headquartered in Los Angeles with offices in Houston and Boston. SCP serves middle-market companies and their partners and investors that are navigating their way through difficult business challenges. Our team’s real-world experience, operational mindset and hands-on approach enable us to deliver effective operational improvements and financial solutions to help companies restore value, regain creditor confidence, and capitalize on opportunities.

As former CEOs, COOs, CFOs, private equity investors and investment bankers, our team of senior professionals has decades of experience operating and advising companies. For more information, please visit www.sierraconstellation.com.