Sirius Partners

Sirius Partners

Sirius Partners has been in business for over 25 years, partnering with business leaders who were formerly corporate leaders themselves. The firm focuses on financial and operational management consulting, leveraging a network of senior executives from Fortune 500 companies rather than junior staff. The consultancy's service lines include internal audit, SOX compliance, procure-to-pay optimization, supply chain risk management, divestitures, integrations, IPOs, and M&A support. They also offer financial transformation, organizational design, and digital transformation services. Clients include a large independent power producer, a large environmental services organization, and a large non-profit organization. The firm claims to have saved one client $30M by scaling a financial organization, cut SOX compliance costs from $5.2M to $600K for another, and generated $16.5M in savings through acquisition scaling. Their client base is primarily Fortune 1000 companies across diversified industries. The firm has offices in Cupertino, New York, and Chicago, with its principal office located in Houston, Texas at 3040 Post Oak Boulevard, Suite 1800. The team consists of former CFOs, treasurers, controllers, internal auditors, SOX auditors, project managers, supply chain directors, and strategy leaders. Recent engagements include a Power BI and change management project for a successful SAP implementation, an ERP vendor selection process that yielded significant savings, and a benchmarking study to support an ETRM and Endur platform strategy. The firm's structural differentiator is its 'seamless synergies' model — they customize teams of former corporate leaders who have direct experience in the client's industry, rather than deploying generalist consultants. This approach is designed to provide the expertise, customization, and responsiveness needed for complex financial and operational initiatives. The firm has no publicly disclosed AUM, deployment figures, or investment portfolio, and does not operate as an investment manager or family office.