John A. Mayfield

Summit Partners LP (Summit Partners) is a private equity firm founded in 1984 by Gregory Avis, Roe Stamps and Stephen Woodsum. The firm is headquartered in Boston, Massachusetts.

Duff & Phelps Investment Management Co. (Duff & Phelps) is a SEC-registered investment advisor headquartered in Chicago, Illinois. The firm was established in 1979, evolving from the Duff & Phelps investment research firm founded in 1932. They are a wholly-owned subsidiary of Virtus Partners, Inc., which is wholly-owned by Virtus Investment Partners, Inc. (NASDAQ: VRTS). Duff & Phelps provides investment advisory services to institutional clients, mutual funds, closed-end funds, and other pooled investment vehicles as well as to retail clients. Duff & Phelps is a signatory to the United Nations Principles for Responsible Investment (UN PRI).

JPMorgan Securities LLC (JPMS) is a securities brokerage firm headquartered in New York City. The firm was founded in 1985 and is a subsidiary of JPMorgan Broker-Dealer Holdings, Inc., ultimately held by JPMorgan Chase & Co., Inc. (NYSE: JPM). JPMS provides research on fixed income, credit, derivatives, emerging markets, foreign exchange, structured finance, technical analysis and bond indices. Their equity analysts cover equities throughout North America, EMEA, Asia/Pacific and the emerging markets. The firm's fixed income team formulates trading and portfolio recommendations for investors in global bonds and other fixed-income markets based on valuations, analytics and market dynamics.

Evraz Claymont Steel Holdings, Inc. manufactures and markets discrete steel plates. Its mix of custom and commodity steel plates are used by bridge fabricators, tool and die manufacturers, railcar builders and service centers. It is headquartered in Claymont, DE.

CIBC World Markets, Inc. is a full-service Canadian brokerage and investment banking firm headquartered in Toronto, Ontario. The firm was founded in 1961 and is a subsidiary of the Canadian Imperial Bank of Commerce (TSE, NYSE: CM). CIBC World Markets provides alternative investment managers with premier prime brokerage that brings together trade execution, reporting, research and capital introduction with a view to enhancing efficiencies and profitability.

Haights Cross Communications, Inc. publishes test preparation and supplemental education materials. The company is headquartered in New York, NY.

Northwestern University is a private institution founded in 1851 to serve the Northwest Territory, an area that now includes the states of Ohio, Indiana, Illinois, Michigan, Wisconsin and parts of Minnesota. Northwestern has three campuses

Chicago Transit Authority provides bus and rail services. It operates public transportation system and covers the city of Chicago and 40 surrounding suburbs. The company was founded on October 1, 1947 and is headquartered in Chicago, IL.

Chicago Growth Partners LLC (Chicago Growth Partners) is a private equity firm founded in 2004 by Robert Blank, David Chandle, Arda Minocherhomjee and Timothy Murray. The firm is headquartered in Chicago, Illinois.

Furnace Parts LLC manufactures and supplies industrial thermocouples and temperature sensors. Its products encompass mineral insulated, noble and base metal thermocouples, thermocouple wire, thermowells and thermocouple accessories. The company was founded in 1974 and is headquartered in Cleveland, OH.

Piper Sandler & Co. operates as an investment company, which engages in the provision of securities brokerage and investment banking services. The company is headquartered in Minneapolis, MN.

Rush University Medical Center engages in the provision of health care services. The company was founded in 1972 and is headquartered in Chicago, IL.

Aldine Capital Partners, Inc. (Aldine Capital Partners) is a private equity firm founded in 2005 by Michael J. Revord. The firm is headquartered in Chicago, Illinois.

PeopleAdmin LLC provides cloud-based talent management solutions for education and government. It offers recruit and hire solutions, onboard and manage solutions, and develop and retain solutions. The company was founded by Jeff Carpenter and Jackson W. Long in 2000 and is headquartered in Austin, TX.

StyleCraft Home Collection, Inc. manufactures residential lamps and home accessories products. It offers wall decors, baskets, mirrors and cushions. The company was founded in 1968 and is headquartered in Southaven, MS.

Benchmark Analytics, Inc. provides analytical services. The firm offers radiochemistry, organics, metals, microbiology and environmental testing services. The company was founded by Stephanie Olexa and Graham Russell in 1989 and is headquartered in Center Valley, PA.

Reliance Communications, Inc. provided on-demand notification solutions for the education market. The company was founded in 1999 and headquartered in Los Gatos, CA.

Santa Rosa Consulting, Inc. provides management consulting and information technology services to the healthcare industry. It offers a broad scope of management advisory services as well as technical consulting expertise across the full range of IT vendor products and systems including information technology planning, implementation consulting, and staffing and recruitment services. The company was founded in 2008 and is headquartered in Franklin, TN.

Part of Kroll LLC, Duff & Phelps GmbH is a German management consulting company. The company is based in Frankfurt, Germany. Duff & Phelps provides management consulting services. The company was founded in 2006. Patrick Michael Puzzuoli has been the CEO of the company since 2019.

Vineyard Capital Group LLC (Vineyard Capital Group) is a private equity firm founded in 2006 by Richard Helppie. The firm is headquartered in Franklin, Michigan.

Industrial Water Treatment Solutions Corp. manufactures and distributes chemical products for the industrial water services market. It operates as a holding company to acquire companies in the industrial water services market. The company was founded by Christopher Dooley in 2012 and is headquartered in Chicago, IL.

Teletrac Navman US Ltd. operates as software-as-a-service (SaaS) provider leveraging location based technology and services for managing mobile assets. It offers fleet management, on road compliance, connected workflow,jobsite management software. The company was founded in 2015 and is headquartered in Glenview, IL.

AlpHa Measurement Solutions LLC operates as a liquid sensor technology platform. It serves the testing needs of water quality, pharmaceutical, laboratory, and industrial markets. The company is headquartered in Chicago, IL.

Pondera Holdings LLC provides finance and capital services. The company was founded by Jan-Dirk Lueders, Scott Casto, Seth Barkett and Joseph D. Johnson and is headquartered in Chicago, IL.