Michael Collentro, director of estimating; Stephen Robak, project executive; Maureen Rystrom, director of marketing; and Scott Trull, director of special projects have all been named to the J. Calnan & Associates, Inc.'s senior management team. They will join existing members Jay Calnan, CEO; James Cahill, president; Michael Crowther, COO; Timothy Kelly, CFO; and Karen Van Riper, director of accounting.