The short answer
Our picks for the top sustainable IT companies in 2026 are Accenture, Capgemini, Deloitte, Greenly, Infosys, Normative, Persefoni, Schneider Electric, Sweep and Watershed. Sustainable IT companies measure and reduce the carbon footprint of technology, from data centres and cloud to devices. The list is alphabetical, not ranked, so choose based on your size, industry and budget.
At a glance
| # | Company | Headquarters | Best for |
|---|---|---|---|
| 1 | Accenture | Dublin, Ireland | Sustainable technology |
| 2 | Capgemini | Paris, France | Sustainable IT |
| 3 | Deloitte | London, UK | Sustainability consulting |
| 4 | Greenly | Paris, France | Carbon accounting |
| 5 | Infosys | Bengaluru, India | Sustainable IT services |
| 6 | Normative | Stockholm, Sweden | Carbon accounting |
| 7 | Persefoni | Tempe, USA | Carbon accounting |
| 8 | Schneider Electric | Rueil-Malmaison, France | Data centre efficiency |
| 9 | Sweep | Montpellier, France | Carbon management |
| 10 | Watershed | San Francisco, USA | Enterprise carbon |
Listed alphabetically, not ranked.
The 10 companies
1Accenture
Dublin, IrelandConsulting.
- Headquarters
- Dublin, Ireland
- Best for
- Sustainable technology
- Service
- Sustainable IT
2Capgemini
Paris, FranceIT services.
- Headquarters
- Paris, France
- Best for
- Sustainable IT
- Service
- Sustainable IT
3Deloitte
London, UKProfessional services.
- Headquarters
- London, UK
- Best for
- Sustainability consulting
- Service
- Sustainable IT
4Greenly
Paris, FrancePlatform.
- Headquarters
- Paris, France
- Best for
- Carbon accounting
- Service
- Sustainable IT
5Infosys
Bengaluru, IndiaIT services.
- Headquarters
- Bengaluru, India
- Best for
- Sustainable IT services
- Service
- Sustainable IT
6Normative
Stockholm, SwedenPlatform.
- Headquarters
- Stockholm, Sweden
- Best for
- Carbon accounting
- Service
- Sustainable IT
7Persefoni
Tempe, USAPlatform.
- Headquarters
- Tempe, USA
- Best for
- Carbon accounting
- Service
- Sustainable IT
8Schneider Electric
Rueil-Malmaison, FranceEnergy management.
- Headquarters
- Rueil-Malmaison, France
- Best for
- Data centre efficiency
- Service
- Sustainable IT
9Sweep
Montpellier, FrancePlatform.
- Headquarters
- Montpellier, France
- Best for
- Carbon management
- Service
- Sustainable IT
10Watershed
San Francisco, USAPlatform.
- Headquarters
- San Francisco, USA
- Best for
- Enterprise carbon
- Service
- Sustainable IT
What sustainable IT covers
IT emissions.
Greener workloads.
Energy use.
Lifecycle.
ESG disclosures.
How to choose a sustainable IT company
- Check methodology.
- Check reporting standards.
- Check cloud data.
- Set targets.
- Act on results.
Red flags
- Prices far below the market with no clear explanation.
- No named team or reluctance to let you interview engineers or designers.
- Case studies without results, clients or links you can check.
- Vague contracts that do not assign IP and code ownership to you.
- No plan for support, documentation or handover after launch.
How we chose these companies
These are iCreativez Technologies’ own recommendations, based on research and experience of the market. We looked for companies with a strong reputation in sustainable IT, visible client work, and a mix of global firms and specialists. The list is alphabetical, not ranked. We did not re-check every detail with each company, and services, ownership and locations change, so confirm details directly before you engage anyone. No company paid to appear.
Need a sustainable IT team?
Tell us about your project. We’ll reply with a practical approach, team and estimate.
Related top 10 lists
Frequently asked questions
Who are the top sustainable IT companies?
Our picks for the top sustainable IT companies in 2026 are Accenture, Capgemini, Deloitte, Greenly, Infosys, Normative, Persefoni, Schneider Electric, Sweep and Watershed. Sustainable IT companies measure and reduce the carbon footprint of technology, from data centres and cloud to devices. The list is alphabetical, not ranked, so choose based on your size, industry and budget.
What is sustainable IT?
Reducing technology’s environmental impact.
How big is IT’s footprint?
Significant, from devices, data centres and networks.
Can cloud be greener?
Yes with efficient regions and usage.
How much do sustainable IT services cost?
Cost depends on scope, the team’s location and seniority, and the engagement model (fixed price, time and materials or dedicated team). Rates in Eastern Europe, Latin America and South Asia are usually lower than in the US or Western Europe. See our cost and rates guide for typical 2026 hourly rates.
How did you choose these companies?
They are our own recommendations, based on research and experience of the market: reputation, size, specialisation and visible client work. The list is alphabetical, not ranked, and no company paid to appear. iCreativez Technologies publishes this page and is not part of the list.