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Sector Rankings

Most Sustainable Telecommunications Companies 2026

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

15
Companies ranked
45
Sector average
55
Sector best (BT Group plc)
Full ranking
1
📡BT Group plcMaking progress
55
2
📡TelefónicaMaking progress
54
3
📡NOS ComunicaçõesMaking progress
54
4
📡Vodafone Group PlcMaking progress
53
5
📱T-Mobile USMaking progress
51
6
📡Virgin Media O2Making progress
51
7
📡OrangeMaking progress
49
8
📱EcotalkMaking progress
49
9
📡Deutsche Telekom AGBelow expectations
45
10
📡Airtel AfricaBelow expectations
45
11
📱Three UKBelow expectations
41
12
📡AT&TBelow expectations
41
13
📡Huawei TechnologiesBelow expectations
39
14
📡Verizon CommunicationsBelow expectations
38
15
🛰️Starlink ServicesSignificant gaps
17
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 15 Telecommunications companies is 45/100. 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?

Starlink Services has the lowest SINK score among Telecommunications companies at 17/100 (Significant gaps).

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