Business Consulting - Operations & Performance Intern - Summer 2026

Grant Thornton LLP

At Grant Thornton, we believe in making business more personal and building trust into every result for our clients and you. Here, we go beyond your expectations of a career in professional services by offering a career path with more : more opportunity, more flexibility, and more support. It's what makes us different, and we think being different makes us better. In the U.S., Grant Thornton delivers professional services through two specialized entities : Grant Thornton LLP, a licensed, certified public accounting (CPA) firm that provides audit and assurance services ? and Grant Thornton Advisors LLC (not a licensed CPA firm), which exclusively provides non-attest offerings, including tax and advisory services. In 2025, Grant Thornton formed a multinational, multidisciplinary platform with Grant Thornton Ireland. The platform offers a premier Trans-Atlantic advisory and tax practice, as well as independent American and Irish audit practices. With $2.7 billion in revenues and more than 50 offices spanning the U.S., Ireland and other territories, the platform delivers a singular client experience that includes enhanced solutions and capabilities, backed by powerful technologies and a roster of 12,000 quality-driven professionals enjoying exceptional career-growth opportunities and a distinctive cross-border culture. Grant Thornton is part of the Grant Thornton International Limited network, which provides access to its member firms in more than 150 global markets.