Built to last┬áDespite the economic downturn, TolTest, Inc. posted record revenues in 2008ÔÇöeven above their own expectations. Ernesto Enrique gives Ruari McCallion an insight into how it was done. When TolTest, Inc., submitted a proposal to the US Army Corps of Engineers, Louisville District Office, in 1992, it marked a turning point in the companyÔÇÖs development. Until then it had been solely involved in commercial operations; winning that multiyear, multimillion-dollar project as prime contractor led to a major change in focus.