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Phi Group is a Specialist Sub Contractor in the Design, Supply & Installation of Gravity and Reinforced Soil Retaining Walls. Systems include; Permacrib, Andacrib and Gabion gravity walls, Textomur reinforced soil slopes (vegetated or gabion faced), Load Transfer Platforms & Basal Reinforcement Geolock, Titan and Concrete Panel reinforced soil walls. Typical Project values range from £1,000 to £1m+ Phi Group backed by its parent company Keller & with its broad portfolio of retaining wall & ground engineering solutions gives us the ability to take on complex multi faceted projects of any size. The extensive range of skills, knowledge and experience brought together enables us to offer you a one-stop approach that will provide full design integration between, any ground improvement/piling works, and the retaining structures above, including interface details associated with adjacent structures, right through to their construction.

Phi Group Questions

The Phi Group annual revenue was $11.5 million in 2026.

8 people are employed at Phi Group.

Phi Group is based in Cheltenham, Gloucestershire.

The NAICS codes for Phi Group are [236, 23].

The SIC codes for Phi Group are [152, 15].

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