Brian Ratigan

Madison Dearborn Partners LLC (Madison Dearborn Partners) is a private equity firm founded in 1992 by John A. Canning Jr., Paul J. Finnegan, Samuel M. Mencoff, Robin P. Selati, James N. Perry Jr. and Timothy P. Sullivan. The firm is headquartered in Chicago, Illinois.

Transition Equity Partners LLC (Transition Equity Partner) is a private equity firm founded in 2020 by Patrick Christopher Eilers. The firm is headquartered in Chicago, Illinois.

XPDI Sponsor LLC provides investment services. The private company is based in Chicago, IL. The CEOs of the company are Patrick Christopher Eilers, Theodore J. Brombach.

BlackRock Advisors LLC is a SEC-registered investment advisor and mutual fund manager headquartered in New York City. The firm was founded in 1994 and is a subsidiary of BlackRock Capital Holdings, Inc., ultimately held by BlackRock, Inc. (NYSE: BLK). BlackRock Advisors manages assets for US-registered investment companies and 529 Plans.

The Big Shoulders Fund provides financial services. The company was founded by James J. O'Connor, Joseph Cardinal Bernardin and Fred O'Connor in 1986 and is headquartered in Chicago, IL.

US Power Generating Co. LLC owns and operates power generation facilities. The company was founded on December 10, 2013 and is headquartered in Stamford, CT.

First Wind Holdings LLC is an independent wind energy company. It is focused on the development, financing, construction, ownership and operation of utility scale wind energy projects. The company was founded in 2002 and is headquartered in Boston, MA.

Crescendo Management LLC (Crescendo Ventures) is a venture capital firm founded in 1993 by David Spreng, Mitchell Dann and Jeff Tollefson. The firm is headquartered in Palo Alto, California.

Part of Magellan Midstream Partners LP, MGG Midstream Holdings GP LLC is a holding company. The company is based in Tulsa, OK. The CEO of the company is Don R. Wellendorf.

Part of Magellan Midstream Partners LP, MGG Midstream Holdings LP is a holding company. The company is based in Tulsa, OK. Don R. Wellendorf has been the CEO of the company since 2003.

Part of Magellan Midstream Partners LP, Magellan GP LLC is a company based in Tulsa, OK. Aaron L. Milford has been the CEO of the company since 2004.

American Academy of Orthopaedic Surgeons provides musculoskeletal education and practice management services to orthopaedic surgeons and allied health professionals. The firm also serves as an advocate for patient care and informs the public about the science of orthopaedics. Its continuing medical education activities includes; Annual Meeting, Continuing Medical Education (CME) courses, and medical and scientific publication and electronic media materials. The company was founded in 1933 and is headquartered in Rosemont, IL.