Insights

Turnkey Capabilities Design, supply and installation of gravity and reinforced soil retaining walls enable Phi Group to deliver turnkey projects with integrated ground improvement and piling interfaces.

Green Infrastructure The portfolio includes vegetated Textomur slopes and gabion or green-faced walls, aligning with sustainability mandates and resilience goals for infrastructure and development projects.

Keller Backing Backed by Keller, the group can pursue complex, multi-discipline projects across ground engineering and retaining structures, supporting larger bids and broader capabilities.

UK Regional Focus Based in Cheltenham with UK operations, Phi Group can target regional civil engineering work across highways, rail, and commercial developments that require advanced retaining wall solutions.

Flexible Sizing Project values span retrofit upgrades to larger wall installations, enabling a broad sales funnel and scalable pipeline.

Phi Group Tech Stack

Phi Group uses 8 technology products and services including Varnish, Fastly, Cloudflare CDN, and more. Explore Phi Group's tech stack below.

  • Varnish
    Caching
  • Fastly
    Content Delivery Network
  • Cloudflare CDN
    Content Delivery Network
  • Percona
    Database
  • Preact
    Javascript Libraries
  • Google Tag Manager
    Tag Management
  • Apache
    Web Servers
  • AddThis
    Widgets

Phi Group's Email Address Formats

Phi Group uses at least 1 format(s):
Phi Group Email FormatsExamplePercentage
First.Last@phigroup.co.ukJohn.Doe@phigroup.co.uk
89%
Last@phigroup.co.ukDoe@phigroup.co.uk
11%

Frequently Asked Questions

Where is Phi Group's headquarters located?

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Phi Group's main headquarters is located at Cheltenham, England gl50 3aw United Kingdom. The company has employees across 4 continents, including EuropeNorth AmericaAsia.

What is Phi Group's phone number?

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You can contact Phi Group's main corporate office by phone at . For more prospecting data, LeadIQ has access to up-to-date and accurate contact information within our platform. Find, capture, and sync contact data to your CRM and sales tools in one click.

What is Phi Group's official website and social media links?

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Phi Group's official website is phigroup.co.uk and has social profiles on LinkedIn.

What is Phi Group's NAICS code?

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Phi Group's NAICS code is 237 - Heavy and Civil Engineering Construction.

How many employees does Phi Group have currently?

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As of December 2025, Phi Group has approximately 51 employees across 4 continents, including EuropeNorth AmericaAsia. Key team members include Vice President: K. G.Director: H. R.Operations Director: I. G.. Explore Phi Group's employee directory with LeadIQ.

What industry does Phi Group belong to?

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Phi Group operates in the Civil Engineering industry.

What technology does Phi Group use?

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Phi Group's tech stack includes VarnishFastlyCloudflare CDNPerconaPreactGoogle Tag ManagerApacheAddThis.

What is Phi Group's email format?

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Phi Group's email format typically follows the pattern of First.Last@phigroup.co.uk. Find more Phi Group email formats with LeadIQ.

Phi Group

Civil EngineeringEngland, United Kingdom51-200 Employees

Phi Group operates as a specialist civil engineering subcontractor focused on the design, supply, and installation of gravity and reinforced soil retaining walls. Its wall systems cover gravity-based structures and reinforced soil solutions, which can feature vegetated slopes or gabion facings. Supported by its parent company Keller, Phi Group leverages a broad portfolio of retaining wall and ground engineering capabilities to tackle complex, multi-faceted projects.

Its services address civil engineering projects that require integrated design between ground improvement or piling works and the retaining structures above, including interface details with nearby constructions. Based in Cheltenham, England, the company presents itself as a mid-sized contractor capable of handling projects of varying scope.

Section iconCompany Overview

Headquarters
Cheltenham, England gl50 3aw United Kingdom
Phone number
NAICS Code
237 - Heavy and Civil Engineering Construction
Employees
51-200

Section iconFunding & Financials

  • $1M

    Phi Group's revenue is estimated to be in the range of $1M

Section iconFunding & Financials

  • $1M

    Phi Group's revenue is estimated to be in the range of $1M

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