Boston Properties (NYSE:BXP) is the largest publicly-held developer and owner of Class A office properties in the United States, concentrated in five markets - Boston, Los Angeles, New York, San Francisco and Washington, DC.

Douglas Emmett, Inc. (DEI) is a fully integrated, self-administered and self-managed real estate investment trust (REIT), and one of the largest owners and operators of high-quality office and multifamily properties located in the premier coastal submarkets of Los Angeles and Honolulu.

Kilroy Realty Corporation (NYSE: KRC, the company, KRC) is a leading West Coast landlord and developer, with a major presence in San Diego, Greater Los Angeles, the San Francisco Bay Area, and the Pacific Northwest.

Alexandria Real Estate Equities, Inc. (NYSE:ARE), an S&P 500® urban office real estate investment trust (REIT), is the first, longest-tenured, and pioneering owner, operator, and developer uniquely focused on collaborative life science, technology, and agtech campuses in AAA innovation cluster locations, with a total market capitalization of $31.9 billion as of December 31, 2020, and an asset base in North America of 49.7 million square feet (SF).

Vornado's portfolio is concentrated in the nation's key market New York City along with the premier asset in both Chicago and San Francisco.

Highwoods Properties, Inc., headquartered in Raleigh, is a publicly-traded (NYSE:HIW) real estate investment trust (REIT) and a member of the S&P MidCap 400 Index.

Hudson Pacific is a real estate investment trust with a portfolio of office and studio properties totaling nearly 19 million square feet, including land for development.

Piedmont Office Realty Trust, Inc. (NYSE: PDM) is an owner, manager, developer, redeveloper, and operator of high-quality, Class A office properties located primarily in select sub-markets within seven major Eastern U.S. office markets, with the majority of its revenue being generated from the Sunbelt.

OPI is a REIT focused on owning, operating and leasing properties primarily leased to single tenants and those with high credit quality characteristics such as government entities.

City Office REIT, Inc. (NYSE: CIO) invests in high-quality office properties in 18-hour cities with strong economic fundamentals, primarily in the Southern and Western United States.

Brandywine Realty Trust (NYSE: BDN) is one of the largest, publicly traded, full-service, integrated real estate companies in the United States with a core focus in the Philadelphia, Austin and Washington, D.C. markets.