GMS provides clients with a team of highly skilled, agile and experienced personnel to solve problems or complete projects traditionally undertaken by a much larger, less skilled and efficient team – The Guerrilla Strategy. Our core business is on-site works; routine and major maintenance, shutdowns/turn-around’s, plant modifications, upgrades, overhauls/refurbishment and new installations. We perform any or all elements of the planning, scheduling, design, execution and commissioning phases.