Thomas Properties claims that Kilroy Realty has backed two groups that issued campaign reports that state "Thousands of El Segundo neighbors' actively oppose the El Segundo Corporate Park." These groups, "No On J & L" and "Citizens Against Gridlock in El Segundo," urge residents to vote no on the measurements. According to Thomas Properties statements, these groups are "simply a smokescreen for a company afraid of competition."

Kilroy Realty owns an office park adjacent to the El Segundo Corporate Campus. As reported in the local Daily Breeze on Dec. 16, 2001, Boeing's leases in Kilroy Realty's buildings across the street are up for renewal and a Boeing official was quoted in the article stating that they would consider moving to the Corporate Campus. Representatives for Thomas Properties say, "Kilroy's issue is really about competition and controlling the real estate market."

Kilroy Realty Corp. claims that they represent thousands of local residents who signed a petition to have the Measures J and L put on the ballot to allow the people of El Segundo to decide the fate of the development. Jim Tabilio, a spokesperson for the "No On J & L" campaign, says that Thomas Properties can change the El Segundo Corporate Campus project into an industrial park to support Los Angeles International Airport's expansion.