Stonbury

Stonbury

Specialist contractor delivering sustainable water infrastructure

Overview

Stonbury is a specialist contractor in the water industry that designs, supplies, and delivers water infrastructure and environmental solutions for water utilities and public sector clients. It uses direct delivery, managing projects in-house from start to finish, to ensure high quality and efficiency while applying sustainable and low-carbon practices. What sets Stonbury apart is its combination of in-house project control, a clear focus on sustainability and environmental responsibility, a track record of awards and certifications, and a commitment to an inclusive, continuously trained workforce. The company's goal is to help provide clean, safe drinking water by delivering reliable, sustainable solutions and reducing the industry’s carbon footprint.

Significant Headcount Growth

About Stonbury

Simplify's Rating
Why Stonbury is rated
B-
Rated B on Competitive Edge
Rated B on Growth Potential
Rated C on Differentiation

Industries

Industrial & Manufacturing

Government & Public Sector

Energy

Company Size

201-500

Company Stage

N/A

Total Funding

N/A

Headquarters

Luton, United Kingdom

Founded

1983

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Simplify's Take

What believers are saying

  • Stonbury won multiple 2026 Environment Agency contracts, including a £289K Midford Flume Repair.
  • June 2026's five-star British Safety Council audit strengthens prequalification for regulated water work.
  • August 2026 promoted Anastasia Kennedy to business development, signaling growth investment across the Group.

What critics are saying

  • Anglian Water concentration exposes Stonbury if the 2030 framework is lost at renewal.
  • Environmental Agency awards are small, competitive, and fragmented, pressuring margins across 2026.
  • Leadership turnover from Trevor Hoyle to Colin Perry-Davis in January 2026 risks execution slippage.

What makes Stonbury unique

  • Stonbury combines potable water, wastewater, and environmental services with direct in-house delivery.
  • The 2024 Panton McLeod acquisition added advanced inspection, cleaning, drones, and ROV capabilities.
  • Anglian Water's 2023 framework extends through 2030, anchoring repeat infrastructure work.

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Benefits

Paid Vacation

Health Insurance

Gym Membership

Dental Insurance

Employee Discounts

Parental Leave

Life Insurance

Disability Insurance

Commuter Benefits

Training Programs

Growth & Insights and Company News

Headcount

6 month growth

15%

1 year growth

15%

2 year growth

15%
Stonbury
Aug 4th, 2024
Stonbury welcomes Sarah McMath as Non-Executive Director

Stonbury is delighted to announce the appointment of Sarah McMath as Non-Executive Director (NED).

LDC
Feb 19th, 2024
Stonbury announces acquisition of Panton McLeod

Stonbury, the water and environment sustainability specialist, is delighted to announce the acquisition of Panton McLeod, the industry-leading advanced inspection and cleaning specialist of public, commercial and industrial water assets.

The Business Desk
Feb 16th, 2024
LDC-backed environmental specialist's acquisition strengthens market position

Private-equity backed Stonbury has acquired Panton McLeod, known for its expertise in the inspection and cleaning of water assets.

Stonbury
Jul 11th, 2023
STONBURY APPOINTS CHIEF FINANCIAL OFFICER

Stonbury Limited is delighted to announce the appointment of Richard Ward as its new Chief Financial Officer (CFO).

Insider Media
Dec 23rd, 2022
LDC backs water and environmental sustainability firm

Private equity firm LDC has backed a prominent water and environmental sustainability firm.

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