\Sustain 100: the European sustainability startups to watch in 2021

Europe now boasts 800 climate techs and huge successes like Arrival, Northvolt and Oatly. But which other sustainability startups do you need to know about?

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Sustainability is only getting hotter and hotter. Europe now boasts six unicorns, from Tesla-rival Arrival to oat milk brand Oatly — both set to IPO in the coming months.

But who could be next?

We’ve cherrypicked the 100 most innovative startups across climate tech, cleantech, greentech and beyond — they’ve got sustainability at the heart of their mission and messaging and are providing very necessary tech solutions to the climate crisis.

12 of the companies launched in the last year, including smart construction company 011h and Sylvera, the platform investigating carbon offsetting initiatives.

We’ve by no means forgotten big players with big raises to match — like refurbished product marketplace Back Market, which raised €110m; or vertical farming startup Infarm, which raised $170m in 2020.

You can view the full list below.

(P.S The data (including valuation estimates) is from Dealroom. If anything is wrong, please let us know by email at [email protected]).

Key

Year founded

Amount raised

Last funding round

Valuation

Employees

011h's logo

011h

New generation building construction company

construction / manufacturing

011h.com

Barcelona, Spain

2020

€8m

EARLY VC

€32-48m

10-50

3fbio's logo

3fbio

Biotech making protein sustainable

biotech / food

3fbio.com

Glasgow, UK

2015

€28m

GRANT

€42-63m

10-50

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Agricool's logo

Agricool

Growing fruits and vegetables in recycled shipping containers

food / n/a

agricool.co

La Courneuve, France

2015

€37m

SERIES A

€100-150m

50-100

Airinum's logo

Airinum

An urban breathing mask for the 21st century

marketplace & ecommerce / healthtech

airinum.com

Sweden, Stockholm

2015

€0m

EARLY VC

€5-8m

10-50

Airly's logo

Airly

Our goal is to make distributed network of air quality sensors and provide reliable air quality data

SaaS / energy

airly.org

Kraków, Poland

2015

€4m

SEED

€7-11m

10-50

Alpha 311's logo

Alpha 311

Local renewable energy for the world

energy / manufacturing

alpha-311.com

Kent, UK

2020

N/Am

N/A

N/A

1-10

Back Market's logo

Back Market

Online marketplace for refurbished products

marketplace & ecommerce / SaaS

backmarket.fr

Paris, France

2014

€158m

SERIES C

€909m

100-500

beworm's logo

beworm

Worms that eat plastic

biotech / waste solution

beworm.org

Munich, Germany

2020

N/Am

BOOTSTRAPPED

N/A

1-10

Bulb Energy's logo

Bulb Energy

Provides 100% renewable electricity and gas to homes across the UK

energy / marketplace & ecommerce

bulb.co.uk

London, UK

2014

€72m

GROWTH EQUITY

€378m

500-1000

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Carbon Clean Solutions's logo

Carbon Clean Solutions

Carbon capture company providing lowest cost cutting-edge technology for energy industry

energy / waste solutions

carboncleansolutions.com

London, UK

2009

€46m

SERIES B

€80-120m

50-100

Cervest's logo

Cervest

Cervest is pioneering Earth Science AI to help businesses, governments and growers adapt to climate volatility

AI / enterprise software

cervest.earth

London, UK

2016

€4m

SEED

€18-27m

50-100

Circular IQ's logo

Circular IQ

Improving accessibility to sustainability data throughout supply chains, so performance can be compared objectively across companies, products and suppliers

energy / enterprise software

circular-iq.com

Amsterdam, Netherlands

2016

N/Am

N/A

N/A

10-50

Circulor's logo

Circulor

Providing traceability-as-a-service, to verify responsible sourcing, to underpin effective recycling and to improve efficiency

SaaS / logistics and delivery

circulor.com

London, UK

2017

N/Am

EARLY VC

N/A

10-50

Clim8's logo

Clim8

Sustainable investing app

fintech / investing

clim8invest.com

London, UK

2019

€6m

N/A

€11m

10-50

Climeon AB's logo

Climeon AB

Climeon's vision is to become the #1 climate solver. We turn heat into clean electricity 24/7, unaffected by weather conditions

energy / n/a

climeon.com

Stockholm, Sweden

2011

€12m

LATE VC

€409m

100-500

Climeworks's logo

Climeworks

Commercialises a highly energy efficient technology for CO2 capture from air

energy / manufacturing

climeworks.com

Zurich, Switzerland

2009

€114m

LATE VC

€304m

100-500

Cloud and Heat's logo

Cloud and Heat

Cloud-based computing, the waste heat of which is used to heat buildings and to heat water

energy / hosting

cloudandheat.com

Dresden, Germany

2011

€15m

SERIES B

€40-60m

50-100

Deep Branch's logo

Deep Branch

A carbon recycling company converting CO2 into high-value products

energy / agritech

deepbranchbio.com

Nottingham, UK

2018

€13m

SERIES A

€32-48m

10-50

DeepSea's logo

DeepSea

Specialises in bringing innovative and user-friendly deep learning powered solutions to the shipping sector

transporttaion / AI

deepsea.ai

Athens, Greece

2017

€3m

EARLY VC

€12-18m

50-100

Donkey Republic's logo

Donkey Republic

A global bike-sharing platform

marketplace & ecommerce / mobility

donkey.bike

Copenhagen, Denmark

2014

€7m

EARLY VC

€16-24m

50-100

Dryad Networks's logo

Dryad Networks

Provides ultra-early fire detection systems of wildfires as well as health and growth monitoring solutions for public and private forests

public safety / security

dryad.net

Eberswalde, Germany

2020

€3m

SEED

€9m

1-10

Ecologi's logo

Ecologi

Individuals and businesses can remove their carbon footprints by subscribing to grow their own forests or contribute to other carbon reducing activities

B2B / B2C

ecologi.com

Bristol, UK

2019

N/Am

BOOTSTRAPPED

N/A

10-50

Ecosia's logo

Ecosia

Search engine that plants trees

advertising / search engine

ecosia.org

Berlin, Germany

2009

N/Am

SEED

N/A

50-100

Einride's logo

Einride

Taking logistics in a new direction with intelligent freight mobility solutions for shippers and carriers

mobility / logistics and delivery

einride.tech

Stockholm, Sweden

2016

€36m

EARLY VC

€114m

100-500

Ember's logo

Ember

Ember is the world’s first 100% electric intercity bus operator and is building its own ultra rapid charging network

mobility / energy

ember.to

Edinburgh, UK

2019

N/Am

BOOTSTRAPPED

N/A

1-10

Enapter's logo

Enapter

Makes highly efficient hydrogen generators

energy / energy storage

enapter.com

Crespina, Italy

2017

€8m

SERIES A

€17-26m

100-500

Enie.nl's logo

Enie.nl

Solar energy provider

energy / B2C

enie.nl

Groningen, Netherlands

2012

N/Am

BOOTSTRAPPED

N/A

50-100

Farmdrop's logo

Farmdrop

Ethical online supermarket, delivering the fresh groceries from a network of sustainable food producers, and on fair terms

marketplace & ecommerce / logistics and delivery

farmdrop.com

London, UK

2012

€21m

SERIES B

€34-50m

50-100

Funcifur's logo

Funcifur

Insect-based pet food startup

food / pet tech

funcifur.com

Sweden, Stockholm

2020

€1m

ANGEL

€3-5m

1-10

Greenly's logo

Greenly

Greenly offers a free app that measures the footprint of everything you buy and rewards you for lowering your emissions, by connecting securely to your bank statements

fintech / enterprise software

en.greenly.earth

Paris, France

2019

€1m

ANGEL

€2-3m

10-50

Grover's logo

Grover

Technology subscription platform

marketplace & ecommerce / subscription

grover.com

Berlin, Germany

2015

€32m

DEBT

€44-66m

10-50

H2 Green Steel's logo

H2 Green Steel

Accelerating the decarbonisation of steel production

manufacturing / energy

h2greensteel.com

Sweden, Stockholm

2020

N/Am

N/A

N/A

10-50

H55's logo

H55

Making air transport quiet and clean by providing certified electric propulsion systems

transportation / vehicle production

h55.ch

Sion, Switzerland

2015

€17m

EARLY VC

€67-100m

10-50

Handerek Technologies's logo

Handerek Technologies

Converts plastic waste into high-quality fuel

energy / waste solution

handerek-technologies.com/en

Warsaw, Poland

2018

N/Am

EARLY VC

N/A

1-10

Helios.do's logo

Helios.do

Sustainable bank

fintech / banking

helios.do

Paris, France

2019

N/Am

SEED

N/A

10-50

Infarm's logo

Infarm

Urban farming services company that develops farming tech for grocery stores, restaurants, and local distribution centres

food / n/a

infarm.com

Berlin, Germany

2012

€202m

SERIES C

€309-464m

100-500

Keyou's logo

Keyou

Develops innovative hydrogen technologies

energy / transportation

keyou.de

Unterschleißheim, Germany

2015

€9m

GRANT

€23-35m

10-50

Klima's logo

Klima

Klima is a nextgen climate app that empowers everyone to take effective, immediate climate action

energy / mobile app

klima.com

Berlin, Germany

2019

€5m

SEED

€20-30m

10-50

Kora's logo

Kora

Special currency that rewards people and companies for performing a wide range of sustainable activities in order to fight climate change

fintech / 11

kora.app

Riga, Latvia

2018

€1m

SEED

€3-5m

10-50

LettUs Grow's logo

LettUs Grow

Designed aeroponic irrigation and control technology for indoor and vertical farms

agritech / manufacturing

lettusgrow.com

Bristol, UK

2015

€4m

SEED

€11-17m

10-50

Lilium's logo

Lilium

The world's first fully electric vertical take-off and landing (VTOL) jet

transportation / n/a

lilium.com

Weßling, Germany

2014

€342m

SERIES B

€909m

500-1000

Material Exchange's logo

Material Exchange

Allows designers, materials teams, product developers and material vendors to search, source and collaborate

Stockholm, Sweden

2017

€7m

EARLY VC

€20-30m

50-100

Material Mapper's logo

Material Mapper

A search and forecasting tool that facilitates sustainable property development project planning and construction material reuse

construction / real estate

materialmapper.com

Oslo, Norway

2020

N/Am

N/A

N/A

1-10

Matorka's logo

Matorka

Produces environmentally friendly and sustainable seafood

food / manufacturing

matorka.is

Grindavik, Iceland

2010

€6m

EARLY VC

€20-30m

1-10

Mi-Algae's logo

Mi-Algae

Next generation agriculture

agritech / food

mialgae.com

Edinburgh, UK

2016

N/Am

GRANT

N/A

N/a

Minespider's logo

Minespider

Blockchain protocol for end-to-end mineral supply chain certification

blockchain / fintech

minespider.com

Berlin, Germany

2017

€2m

GRANT

N/A

10-50

Mitto's logo

Mitto

First prepaid card designed exclusively for young people

fintech / mobile app

getmitto.com

Barcelona, Spain

2019

€3m

SEED

€2-3m

1-10

Modularity Grid's logo

Modularity Grid

Intelligent sensors and software for managing electrical systems for electric utilities and aerospace markets

London, UK

2017

N/Am

EARLY VC

N/A

1-10

Mosa Meat's logo

Mosa Meat

Found a new method to make real meat to feed our fast-growing population in a sustainable, healthy, and animal-friendly way

food / manufacturing

mosameat.com

Maastricht, Netherlands

2016

€92m

SERIES B

€309-464m

50-100

Nature Metrics's logo

Nature Metrics

An award-winning technology startup using genetic techniques to monitor biodiversity

biotech / health

naturemetrics.co.uk

Egham, UK

2014

€3m

EARLY VC

€12-17m

10-50

Net Purpose's logo

Net Purpose

First data provider for impact outcomes

fintech / enterprise software

netpurpose.com

London, UK

2019

€2m

SEED

€9-14m

1-10

Northvolt's logo

Northvolt

Lithium-ion batteries

energy / energy storage

northvolt.com

Stockholm, Sweden

2016

€1,500m

GROWTH EQUITY

€3bn

1000-5000

Oddbox's logo

Oddbox

London's first wonky and surplus fruit and veg box scheme

food logistics and delivery / marketplace & ecommerce

oddbox.co.uk

Mitcham, UK

2016

€4m

EARLY VC

€13-19m

50-100

Olio's logo

Olio

Free app connecting neighbors to surplus food and other goods that can be shared instead of thrown away

marketplace & ecommerce / food

olioex.com

London, UK

2016

€11m

EARLY VC

€22-33m

50-100

Onto's logo

Onto

EV monthly car subscription

transportation / subscription

on.to

Birmingham, UK

2017

N/Am

N/A

N/A

10-50

Oxwash's logo

Oxwash

Revolutionising the washing industry by combining next-generation cleaning and logistics services

real estate / energy

oxwash.com

Oxford, UK

2018

€2m

SEED

€7-10m

10-50

Pangaia's logo

Pangaia

Materials science brand on a mission to save our environment

fashion / apparel

thepangaia.com

London, UK

2018

N/Am

N/A

N/A

100-500

Pavegen's logo

Pavegen

Flooring tile that converts the wasted kinetic energy from footsteps into renewable electricity

energy / waste solution

pavegen.com

London, UK

2009

€5m

SERIES A

€5-7m

10-50

Phycobloom's logo

Phycobloom

PhycoBloom is developing the next generation of algae for the future world

energy / waste solution

phycobloom.com

London, UK

2019

N/Am

SEED

N/A

1-10

Physee's logo

Physee

Cleantech scaleup which has developed a product that reduces the energy consumption of buildings with 30% by upgrading glass with sensors and solar

energy / construction

physee.eu

Delft, Netherlands

2014

€10m

SERIES A

€16-24m

10-50

Piclo's logo

Piclo

A software company on a mission to make electricity cheap, clean, and abundant

enterprise software / energy

piclo.energy

London, UK

2013

€3m

SEED

€7-11m

10-50

PlanA.Earth's logo

PlanA.Earth

Plan A has developed the first Carbon Reduction Software which helps businesses calculate, monitor, reduce and report on their carbon footprint

enterprise software / energy

plana.earth

Berlin, Germany

2017

€3m

SEED

€11-16m

10-50

Planera's logo

Planera

Flushable and biodegradable sanitary pads

health / wellness beauty

planera.care

London, UK

2017

€1m

SEED

€2-3m

1-10

Plantix's logo

Plantix

Agricultural app for disease detection, pest control and yield increase

agritech / mobile app

plantix.net/en

Berlin, Germany

2015

€12m

SERIES A

€27-40m

100-500

Plume Labs's logo

Plume Labs

Analyses and predicts local air quality

health / home living

plumelabs.com

Paris, France

2014

€6m

GRANT

€16-25m

10-50

Project Cece's logo

Project Cece

Your fair fashion finder

fashion / marketplace & ecommerce

projectcece.nl

Netherlands, Amsterdam

2015

€0m

SEED

€400-600k

1-10

Reforest'Action's logo

Reforest'Action

Community-focused tree planting

agritech / fintech

reforestaction.com

Paris, France

2010

N/Am

N/A

10-50

Seaborg Technologies's logo

Seaborg Technologies

A startup on the forefront of advanced and innovative nuclear reactor technology working to provide abundant, affordable and sustainable energy

energy / manufacturing

seaborg.co

Copenhagen, Denmark

2015

€20m

EARLY VC

€80-120m

50-100

Sencrop's logo

Sencrop

A network of connected ag-weather stations for farmers

agritech / IoT

sencrop.com

Lille, France

2016

€11m

GRANT

€36-55

50-100

Single.earth's logo

Single.earth

Single Earth is an online platform that enables forests, wetlands, and other natural resources to generate profit without being sold as raw materials but instead as carbon offsets and biodiversity offsets through the first nature backed crypto token

cryptocurrency / fintech

single.earth

Tallinn, Estonia

2019

€4m

ANGEL

€14-21m

1-10

Sojo's logo

Sojo

The Deliveroo of clothes alterations and repairs

fashion / mobile app

sojoapp.co.uk

London, UK

2021

N/Am

BOOTSTRAPPED

N/A

1-10

Solar Foods's logo

Solar Foods

Uses renewable electricity, water and air to produce natural protein

food / energy

solarfoods.fi

Helsinki, Finland

2017

€25m

EARLY VC

€75m

10-50

Spinnova's logo

Spinnova

A sustainable fibre company developing textile fibre directly out of pulp without harmful chemical processes

fashion / waste solution

spinnova.com

Jyväskylä, Finland

2014

€11m

SERIES A

€44-66m

10-50

Spowdi's logo

Spowdi

Providing solar-powered water distribution

agritech / energy

spowdi.com

Nacka Strand, Sweden

2019

€1m

EARLY VC

€4-7m

1-10

Stenon's logo

Stenon

Laboratory independent real-time soil analysis

agritech / robotics

stenon.io

Potsdam, Germany

2018

€1m

SEED

€4-5m

10-50

Submer Technologies's logo

Submer Technologies

Immersion cooling solution for data centres

energy efficiency / manufacturing

submer.com

L'Hospitalet de Llobrega, Spain

2015

€7m

SEED

€15-23m

50-100

Sulapac's logo

Sulapac

Biodegradable packaging material innovation made out of wood

manufacturing / food

sulapac.com

Helsinki, Finland

2016

€21m

SERIES B

€60-90m

10-50

Sust Global's logo

Sust Global

Climate risk intelligence

enterprise software / B2B

sustglobal.com

London, UK

2019

N/Am

N/A

N/A

1-10

Sylvera's logo

Sylvera

Sylvera provides independent, accurate, regular and affordable monitoring of carbon offsets

enterprise software / B2B

sylvera.io

London, UK

2020

N/Am

BOOTSTRAPPED

N/A

10-50

Teraloop's logo

Teraloop

Kinetic energy storage system

energy / energy storage

teraloop.org

Espoo, Finland

2014

€3m

GRANT

N/A

10-50

Tevva's logo

Tevva

A company that specialises in producing electric range extended vehicles

vehicle production / transportation

tevva.com

Chelmsford, UK

2012

€24m

LATE VC

€45-68m

10-50

The Shellworks's logo

The Shellworks

Makes compostable materials from seafood waste

food / manufacturing

theshellworks.com

London, UK

2019

N/Am

BOOTSTRAPPED

N/A

1-10

Tickr's logo

Tickr

Impact investment app built for the next generation of investors

fintech / investing

tickr.co.uk

London, UK

2018

€5m

EARLY VC

€12-18m

10-50

Tideal's logo

Tideal

Tideal is a community-led and data-inspired climate action platform. Currently in closed beta

education / enterprise software

tideal.app

Helsinki, Finland

2019

N/Am

BOOTSTRAPPED

N/A

1-10

Tomorrow's logo

Tomorrow

Mobile banking goes sustainable

banking / fintech

tomorrow.one

Hamburg, Germany

2017

€12m

SEED

€43m

50-100

Too Good To Go's logo

Too Good To Go

Mobile platform that connects users with delicious unsold food from a variety of shops and restaurants

food / food logistics & delivery

toogoodtogo.com

Copenhagen, Denmark

2015

€39m

SERIES A

€113-169m

500-1000

Vanilla Steel's logo

Vanilla Steel

E-commerce platform facilitating the transaction of excess steel produce between suppliers and buyers

construction / marketplace & ecommerce

vanillasteel.com

Berlin, Germany

2020

N/Am

BOOTSTRAPPED

N/A

10-50

Verkor's logo

Verkor

Industrial company set to amplify battery cell production in Europe

energy storage / B2B

verkor.com

Grenoble, France

2020

N/Am

N/A

N/A

10-50

Vestiaire Collective's logo

Vestiaire Collective

Circular fashion platform

marketplace & ecommerce / fashion

vestiairecollective.com

Paris, France

2009

€19m

SERIES G

€236-354m

500-1000

Vinted's logo

Vinted

The largest online international C2C marketplace in Europe dedicated to second-hand fashion

marketplace & ecommerce / fashion

vinted.com

Vilnius, Lithuania

2008

€232m

SERIES E

€1bn

500-1000

Volta Trucks's logo

Volta Trucks

Creating an all electric truck specifically to be used in and around cities and urban areas

transportation / energy

voltatrucks.com

Sigtuna, Sweden

2019

€20m

EARLY VC

€73-109m

10-50

WeDontHaveTime's logo

WeDontHaveTime

The world's largest social media network for climate action

social media / media

wedonthavetime.org

Inverness, UK

2017

€1m

EARLY VC

€13-20m

10-50

WindCity's logo

WindCity

Small wind and hydrocicles turbines

clean energy / manufacturing

windcity.it/en

Rovereto, Italy

2016

N/Am

N/A

1-10

Winnow's logo

Winnow

Develops artificial intelligence tools to help chefs run more profitable and sustainable kitchens

food logistics and delivery / food

winnowsolutions.com

London, UK

2013

€22m

DEBT

€44-65m

50-100

X1 Wind's logo

X1 Wind

Disruptive floating platform developing a floating wind platform for deep waters

energy / manufacturing

x1wind.com

Barcelona, Spain

2017

€11m

EARLY VC

€16-24m

10-50

Xampla's logo

Xampla

A natural plastic alternative entirely made from peas

energy / manufacturing

xampla.com

Cambridge, UK

2018

€10m

SEED

€29-43m

N/a

Ynsect's logo

Ynsect

Transforms insects into nutrient resource for agriculture

food / n/a

ynsect.com

Évry, France

2011

€214m

DEBT

€500-750m

100-500

ZEG Power AS's logo

ZEG Power AS

Creating carbon zero hydrogen through carbon sequestration

energy / B2B

zegpower.com

Fornebu, Norway

2008

N/Am

N/A

N/A

10-50

Zeleros's logo

Zeleros

Zeleros is leading the hyperloop development, already considered as "the fifth means of transportation"

transportation / vehicle production

zeleros.com

Valencia, Spain

2016

€7m

EARLY VC

€28-42m

10-50

Zolar's logo

Zolar

Makes buying solar power systems for homes easier and more transparent

energy / real estate

zolar.de

Berlin, Germany

2016

€54m

SERIES B

€140-210m

100-500

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