MEC said the cash and scrip acquisition of Fremantle-based IGMS was a major move in expanding its services in the biggest mining state in Australia.
IGMS markets itself as a geological and mining consultant working with companies from discovery to delivery.
Its geological consulting arm provides exploration strategies, project evaluation, work program design, resource modelling and estimation, and project management and implementation.
The engineering side of the business helps miners develop feasibility studies, resource optimisation, financial analysis, design and scheduling for work programs, and mine site production management.
MEC said IGMS had a "solid works pipeline" for 2022, with a recuring and growing client base.
MEC chief executive Christofer Catania said IGMS had built a solid reputation across the resources sector, successfully consulting with clients on multi-commodity projects across Australia, Europe and South East Asia.
"Their holistic approach to both exploration and mining dovetails neatly with the MEC ethos and aligns with our customer-focused approach which values quality end-to-end services to maximise our clients' returns," Catania said.
IGMS already boasts a significant order book, providing services to Lodestar Minerals, Bryah Resources, Genesis Minerals, Allow Resources, Spectrum Metal, and Hexagon Resources among others.
As a result of the deal, MEC's workforce will grow to more than 80 full-time staff along with casual and subcontractor workers across Queensland and WA.