Who We Are

AG|CM is a full service, professional construction management and estimating firm with dedicated professionals who have over 680 years of combined experience.

Read more


Established in 1996, AG|CM has become the premier estimating and construction management firm in South Texas. AG|CM was founded by Derwood Anderson to manage large capital construction projects for institutions, municipalities, industrial and commercial entities that do not have the expertise or staff to properly administer such complex projects.

Read more

Our Core Values

  • Integrity
  • Professionalism
  • Leadership
  • Loyalty
AG|CM has done an outstanding job of managing our 2008 Bond construction program, allow­ing us to capture savings that are enabling us to build an additional elementary school, above and beyond the four that were originally planned. I’ve found them to be highly professional and com­petent. Scott Elliff, Superintendent (Jan 2012) - CCISD
AG|CM did a terrific job of advising us on budget and constructability issues which enabled us to award the Ortiz Center project within available funds without compromising a very creative design. Frank Brogan, P.E. , Director of Engineering - Port of Corpus Christi Authority
We know that Ryan saved us more than what we paid him. If he saw in the design of the architect something he believed was too costly, he negotiated another way for that area to be drawn or suggested other material that could be used that would be more cost effective. He did the same thing with the Contractors. Ryan was on top of our budget from day one. Rev. Linda Montgomery, - Schertz United Methodist Church