SaaS / Digital Services

Nextcloud sustainability score: 36/100

36/100
Below expectations
Joint 36th of 69 in SaaS / Digital Services

Better than 46% of SaaS / Digital Services

Making progress starts at 46. The highest score on SINK is 71.

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About Nextcloud

Head office DEStaff ~143–147Revenue ~€3–4M (aggregator estimates, unverified — treat with caution)Website ↗

Our verdict

Nextcloud scores 36/100 (Below expectations) on SINK's independent climate assessment, scored from public data only. Scores are free. Nobody can pay to change a score, speed it up or hide it. Last verified September 2026.

That places Nextcloud joint 542nd of 1,023 companies scored, and joint 36th of 69 in SaaS / Digital Services.

The ten questions

What is Nextcloud doing well, and where does it fall short?

Strongest on Controversies & Red Flags and Nature & Biodiversity Impact (8/10, 5/10). Weakest on Carbon Footprint: Operations and Carbon Footprint: Supply Chain (3/10, 3/10).

What's missing

Where Nextcloud lost points

For each question that lost points, the evidence our public rubric looks for that we didn't find.

What would raise this score

  • Emissions from its own operationsPublish emissions figures for its own operations, even an estimate from energy bills.
  • Emissions from its supply chainAssess where its supply-chain emissions come from.
  • Whether its emissions are fallingShow its emissions are falling, even from energy bills or mileage.

Every question that lost points

  • Emissions from its own operations3/10No emissions figures for its own operations, not even an estimate from energy bills.
  • Emissions from its supply chain3/10No assessment of where its supply-chain emissions come from.
  • Whether its emissions are falling3/10No evidence its emissions are falling, not even from energy bills or mileage.
  • How clean its energy is4/10Less than half its energy shown to be renewable, or no transition plan.
  • Its effect on nature5/10Its effect on nature isn't measured or independently verified.
  • How it uses materials and handles waste4/10No measurable waste or recycling targets reported publicly.
  • Its effect on water5/10No measured water footprint with reduction targets.
  • Its climate targets4/10Its targets aren't science-based or committed to the Science Based Targets initiative.
  • How openly it reports5/10No dedicated sustainability role, board oversight or public report.

A score changes when the evidence does. We use new published evidence at the next rescore. Anyone can send us new evidence, free. How to send it.

The calculation

How is Nextcloud's SINK score calculated?

Same ten questions for every company. No private weighting.

SINK = (0.3 × Base + 0.7 × Performance) × Scale
Industry base impact
SaaS / Digital Services sector ceiling.
70 / 100
Performance score
Sum of the ten questions, each scored 0 to 10.
44 / 100
Raw score
Weighted average before scale penalty.
(0.3 × 70) + (0.7 × 44) = 51.8
Scale penalty
Multiplier based on total emissions. Bigger polluters lose more.
× 0.7
Final score
Rounded. Below expectations.
36 / 100
How this score has moved

Has Nextcloud's score changed?

Nextcloud's score has been reviewed 2 times and currently stands where it started, at 36.

02550751003615 September 2026367 November 2026
  1. 36 → 367 November 2026

    Correction, 7 November 2026: removed an unsourced emissions figure. Score unchanged.

  2. Scored 3615 September 2026

    Initial score 36 (score-company publish)

Where the evidence comes from

What evidence is Nextcloud's score based on?

17 sources used in this assessment. All publicly available. Each row shows which of the ten questions it informed.

[1]Source
nextcloud.com

“The Company prioritizes health, safety, and environmental protection, conducting operations to safeguard its employees, customers, the public, and the environment.”

Q1Q7Q9
View →
[2]Source
leadiq.com

“As of May 2026, Nextcloud GmbH has approximately 143 employees across 5 continents”

Q1
View →
[3]Source
blauer-engel.de

“The Federal Ministry for the Environment awarded the first Blue Angel ecolabels for resource and energy-efficient cloud software to Nextcloud Server and Green Metrics Tool on 11 June 2025.”

Q2Q3Q5Q8
View →
[4]Source
nextcloud.com

“software that reduces energy use and resource consumption also reduces external dependencies and extends the lifespan of existing systems.”

Q2Q4Q6Q9
View →
[5]Source
haufe.de

“Die ressourcenschonende Architektur und Datenportabilität trage dazu bei, Abhängigkeiten zu reduzieren und bestehende IT-Infrastrukturen länger nutzbar zu machen.”

Q4
View →
[6]Source
en.wikipedia.org
Q4
View →
[7]Source
nextcloud.com
Q4
View →
[8]Source
nextcloud.com
Q4
View →
[9]Source
nextcloud.com

“no growth at all cost: protect people, society and the environment.”

Q5
View →
[10]Source
cloudcomputing-insider.de

“Nextcloud setzt damit neue Maßstäbe für Green IT und digitale Souveränität.”

Q6
View →
[11]Source
sciencebasedtargets.org

“The SBTi's Target Dashboard lists companies and financial institutions that have set science-based targets, or have committed to developing targets.”

Q8
View →
[12]Source
nextcloud.com

“digital public goods must follow best practices around privacy, security, and sustainability, avoid causing harm, and meaningfully contribute to the United Nations' 2030 Sustainable Development Goals.”

Q9
View →
[13]Source
bundesumweltministerium.de
Q9
View →
[14]Source
blauer-engel.de
Q9
View →
[15]Source
blauer-engel.de
Q9
View →
[16]Source
nextcloud.com

“Join us at the EU Open Source Policy Summit 2022”

Q10
View →
[17]Source
lobbymap.org

“LobbyMap maintains the world's leading database on corporate and industry association climate policy engagement, with metrics and profiles covering 1000 companies.”

Q10
View →

If you believe a source has been misread or a newer version exists, submit a challenge.

For Nextcloud

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    Nextcloud: SINK sustainability score 36.

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Nextcloud in context

How does Nextcloud compare with other saas / digital services companies?

Where Nextcloud sits among saas / digital services peers.

Among the 69 major saas / digital services brands we've scored, Nextcloud is tied =36th of 69, with 2 others.

=36/69
Nextcloud's rank
39
Industry average
21
Industry low
71
Industry high
See all 69 in SaaS / Digital Services →
Explore next

Who scores higher in SaaS / Digital Services?

The 3 companies in the sector scoring nearest above Nextcloud.

See the full SaaS / Digital Services table →
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