ECA Partners | 20,225 followers on LinkedIn. Executive Search | Interim Executives | On-Demand Consultants | ECA is an executive search firm focused on serving private equity clients and their portfolio companies. We use a proprietary, evidence-based approach to recruiting that leverages data and technology to ensure the very best outcomes for our clients. We invested millions to build our industry leading Talent Management System, CASCADE, that gives our clients an edge both in terms of speed to hire and likelihood of success.