Los Angeles-based advisory firm Sierra Constellation Partners has launched. Serving middle-market companies and their stakeholders, the firm advises on financial restructuring, strategic investments, interim management, recapitalizations and operations, and balance sheet restructuring. Sierra will also partner with investors to selectively deploy SCP capital. The firm looks to develop and execute strategies for companies across multiple industries during times of volatility and change. It represents middle-market companies and their management teams, board members, private equity sponsors, lenders, creditors and hedge funds.