cordTech Hiring Rankings
UK's Fastest Growing Sustainability Companies
The UK's fastest growing Sustainability companies of Summer 2026 that are actively hiring engineers.
#
Company
Open jobs
Headcount
Growth
Calculated based on % headcount growth in the last 12 months.
1
Kraken Technologies
London, UK · EnviroTechDriving the global green energy revolution through transformational EnTech. Part of the Octopus Energy Group.
15 jobs
1001 - 5000
26%
2
Kaluza
London, UK · EnviroTechThe intelligent software platform powering the future of energy.
5 jobs
501 - 1000
20%
3
SLR Consulting
Aylesbury, UK · ConsultancyGlobal Leaders in Sustainability Solutions
3 jobs
1001 - 5000
17%
4
Vital Energi
Blackburn, UK · Energy and UtilitiesCreative, collaborative, complete energy solutions for our future.
9 jobs
501 - 1000
16%
5
Ground Control
Billericay, UK · MaintenanceAward-winning external maintenance provider. National coverage all year round!
3 jobs
501 - 1000
12%
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