IQE Pty Ltd is a Western Australian based company founded in 2006. Its three Principal estimators — Thomas Holt, Adrian Birch, and Gerhardt Strumpher — are highly experienced career estimators who have united under the IQE banner to provide their combined estimating expertise to the Civil and Mining industries.

IQE Pty Ltd perform a diverse range of services such as Feasibility Studies, Budgets, Project Estimations, Analysis, Productivity Studies, and Shadow Estimates.