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Sector Rankings

Most Sustainable Telecommunications Companies 2026

11 Telecommunications companies ranked 0–100 on real environmental impact using SINK's open, physics-first formula.

11
Companies ranked
47
Sector average
55
Sector best (BT Group plc)
Full ranking
1
📡BT Group plcMaking progress
55
2
📡TelefónicaMaking progress
54
3
📡Vodafone Group PlcMaking progress
53
4
📱T-Mobile USMaking progress
51
5
📡Virgin Media O2Making progress
51
6
📡OrangeMaking progress
49
7
📡Deutsche Telekom AGBelow expectations
45
8
📱Three UKBelow expectations
41
9
📡AT&TBelow expectations
41
10
📡Huawei TechnologiesBelow expectations
39
11
📡Verizon CommunicationsBelow expectations
38
Frequently asked

Telecommunications sustainability, answered.

Which Telecommunications company is the most sustainable?

BT Group plc is the highest-scoring Telecommunications company on SINK with a score of 55/100 (Making progress).

What is the average sustainability score for Telecommunications companies?

The average SINK score across 11 Telecommunications companies is 47/100. The global average across all scored companies is 38/100.

How does SINK rate Telecommunications companies?

SINK scores Telecommunications companies on 10 questions using public data: Scope 1/2/3 carbon footprint, energy source, nature and biodiversity, resource use, water impact, emissions trajectory, science-based targets, transparency, and major controversies. The formula adjusts for the industry's inherent environmental footprint and company scale.

Which Telecommunications company has the worst sustainability score?

Verizon Communications has the lowest SINK score among Telecommunications companies at 38/100 (Below expectations).

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