He recommended looking at other local firms in addition to the Mexicali-based firm.
"They're a good firm, but we need to be open to firms on this side of the border as well," Renison added.
The firm approached Calexico's booth during a North American Free Trade Agreement convention in Mexico City earlier this month to offer its assistance. The convention was attended by Calexico Mayor Javier Alatorre and representatives from the city Chamber of Commerce.
Officials with Sanchez and Treviño "walked over to our booth, and without trying to be mean, said ‘We can help,' " Hildy Carrillo-Rivera, executive director of the Calexico chamber, said at last week's City Council meeting.
She said in comparison to cities like Coachella, Palm Springs and El Centro, Calexico is wanting in regards to promotional materials and a comprehensive business plan.
Carrillo-Rivera said that Sanchez and Treviño are members of the chamber and have an impressive client list on both sides of the border.
In other Redevelopment Agency business on Tuesday's agenda, the council will finalize plans for new entry signs into the city, continue planning Calexico's 93rd anniversary celebration, discuss possible improvements to the Calexico Community Center and hear a presentation concerning the renovation of Rodney Auditorium on the campus of San Diego State University-Imperial Valley campus.
Of the entry sign issue, Carrillo-Rivera at a chamber meeting last week, said she has taken it upon herself to replace the entry signs near the chamber's office.
Carrillo-Rivera has already received a cost estimate to replace the signs, which she said are peeling and chipping. She added she has started to raise money for the cause.
Members of the chamber pledged to make $100 donations toward the new sign.
The chamber plans to have its signs in place before spring break traffic to Mexico clogs up Highway 111.
Staff Writer Aaron Claverie can be reached at 337-3419.