So far this year London startups have raised a record €11.8bn from VC funds, more than the €14.5bn in all of 2020.
But which are the most exciting startups and scaleups based in the city? Which are the ones to watch in 2021?
Our team of experts at Sifted have chosen a list of more than 130 exciting companies we think you need to know about, with an added 'Sifted take' on some to provide an extra layer of insight.
It's a mixture of the big and the small, the well known and the under the radar. But all are making waves. Keep reading below and stay informed about Europe’s new economy!
(P.S The data is from European Startups, with valuation estimates from Dealroom. If there is anyone missing from this list, or anything is wrong, please let us know by email at [email protected]).
Key
Year founded
Amount raised
Last funding round
Valuation
Employees

LabGenius
AI-driven drug discovery platform
health / biotech
labgeni.usLondon, UK
2012
€26m
SERIES A
€55-82m
10-50
Sifted Take
In 2020, the biotech raised a further $15m extension of its Series A round — which totalled $25m. It was led by Atomico. It also appeared on our list of best London startups to work at in 2021.
2012
€26m
SERIES A
€55-82m
10-50
Sifted Take
In 2020, the biotech raised a further $15m extension of its Series A round — which totalled $25m. It was led by Atomico. It also appeared on our list of best London startups to work at in 2021.

Habito
Digital mortgage broker
fintech; real estate / mortgages & lending
habito.comLondon, UK
2015
€78m
SERIES C
€168-252m
100-500
Sifted Take
Digital mortgage broker Habito conducts those crucial chats over live chat or telephone. Competitors include Trussle and Mojo, but Habito is the only venturing into a new battleground for fintechs: influencer marketing.
Related: The "fin-influencer" boom: why Instagram and TikTok are the new battlegrounds for digital banks
2015
€78m
SERIES C
€168-252m
100-500
Sifted Take
Digital mortgage broker Habito conducts those crucial chats over live chat or telephone. Competitors include Trussle and Mojo, but Habito is the only venturing into a new battleground for fintechs: influencer marketing.
Related: The "fin-influencer" boom: why Instagram and TikTok are the new battlegrounds for digital banks

Sifted Take
Reaching profitability in 2019, Azimo received $88m from Rakuten, eVentures and Frog Capital. It's currently preparing for the fallout of Brexit, and in April 2019 it secured a license in the Netherlands to operate and opened up an office in the Netherlands. They've also got an office in Krakow. But they're doing well, with a 70% increase in new customers since the pandemic.
2012
€60m
DEBT
€73-109m
100-500
Sifted Take
Reaching profitability in 2019, Azimo received $88m from Rakuten, eVentures and Frog Capital. It's currently preparing for the fallout of Brexit, and in April 2019 it secured a license in the Netherlands to operate and opened up an office in the Netherlands. They've also got an office in Krakow. But they're doing well, with a 70% increase in new customers since the pandemic.
Bulb
100% renewable electricity and gas provider
energy /
bulb.co.ukLondon, UK
2014
€72m
GROWTH EQUITY
€378m
500-1000
Sifted Take
Bulb is a London-based startup which supplies renewable electricity and gas to homes. The four-year-old business was the UK’s fastest-growing startup in 2018; it has over 1.3m customers, has passed £1.3bn in revenue and has raised over £60m in venture capital.
It’s also gearing up to play a far more central role in its customers’ lives once we’re all driving electric vehicles, generating energy at home with our solar panels and using smart meters — and need someone to help us manage that (more complicated) future.
There is competition from other players in this market; in the UK, there’s Ovo Energy (founded in 2009), in Spain, Holaluz (founded in 2010).
But Bulb has been growing far faster, and has more customers. The next big (and potentially dangerous) move for the company is international expansion into France, Spain and Texas. It has launched for “friends and family” in each of these markets. But can Bulb put a dent in the dominance of the incumbents in those markets as it has in the UK?
Further reading: Bulb Energy: the fastest growing startup in the UK
2014
€72m
GROWTH EQUITY
€378m
500-1000
Sifted Take
Bulb is a London-based startup which supplies renewable electricity and gas to homes. The four-year-old business was the UK’s fastest-growing startup in 2018; it has over 1.3m customers, has passed £1.3bn in revenue and has raised over £60m in venture capital.
It’s also gearing up to play a far more central role in its customers’ lives once we’re all driving electric vehicles, generating energy at home with our solar panels and using smart meters — and need someone to help us manage that (more complicated) future.
There is competition from other players in this market; in the UK, there’s Ovo Energy (founded in 2009), in Spain, Holaluz (founded in 2010).
But Bulb has been growing far faster, and has more customers. The next big (and potentially dangerous) move for the company is international expansion into France, Spain and Texas. It has launched for “friends and family” in each of these markets. But can Bulb put a dent in the dominance of the incumbents in those markets as it has in the UK?
Further reading: Bulb Energy: the fastest growing startup in the UK

Sifted Take
Ever thought of taking snaps of your...bin?! Well, that's Winnow's business model. Its AI tool captures pictures of food thrown away in hotels, restaurants and even IKEA to tackle the huge problem of food waste.
2013
€22m
DEBT
€44-65m
100-500
Sifted Take
Ever thought of taking snaps of your...bin?! Well, that's Winnow's business model. Its AI tool captures pictures of food thrown away in hotels, restaurants and even IKEA to tackle the huge problem of food waste.
Sifted Take
In an market saturated with fintechs, Monese has been smart to focus on providing services for expats. It's had over 2m downloads. But it's grown slower than any of its peers when adjusting for time, and it's £5.5m revenue in 2018 paled in comparison to Revolut's £58.2m, which launched at around the same time.
Read more: Revolut-rival Monese set to make 30 employees into millionaires as it eyes unicorn status
2013
€70m
SERIES B
€218-327m
100-500
Sifted Take
In an market saturated with fintechs, Monese has been smart to focus on providing services for expats. It's had over 2m downloads. But it's grown slower than any of its peers when adjusting for time, and it's £5.5m revenue in 2018 paled in comparison to Revolut's £58.2m, which launched at around the same time.
Read more: Revolut-rival Monese set to make 30 employees into millionaires as it eyes unicorn status

Sifted Take
As you might imagine, 2020 was a huge year for HealthHero — and it now claims to be the largest telemedicine provider in Europe after acquiring the heavyweight champion Doctorlink. It's just over a year old but now claims to cover 20m people as a result. But even before the pandemic, telemedicine was predicted to be an emerging force for the long-term. While 1% of consultations were done digitally prior to Covid-19, there's capacity for 70-80% of consultations to be remote. There seems to be a very secure and successful future for the startup. Read more: HealthHero: the new healthtech startup buying its way to the top
2019
€70m
LATE VC
10-50
Sifted Take
As you might imagine, 2020 was a huge year for HealthHero — and it now claims to be the largest telemedicine provider in Europe after acquiring the heavyweight champion Doctorlink. It's just over a year old but now claims to cover 20m people as a result. But even before the pandemic, telemedicine was predicted to be an emerging force for the long-term. While 1% of consultations were done digitally prior to Covid-19, there's capacity for 70-80% of consultations to be remote. There seems to be a very secure and successful future for the startup. Read more: HealthHero: the new healthtech startup buying its way to the top
GoCardless
Simple and cheap way to take payments online: no merchant account, no credit card fees, no hassle
fintech / payments
gocardless.comLondon, UK
2011
€1,500m
SERIES F
€882m
100-500
Sifted Take
GoCardless is not one of the glamorous fintechs that grabs headlines.
Companies pay GoCardless to collect direct debits from customers on their behalf. It then takes a fee of up to 1% from those transactions and in return also provides data to help businesses retain their customers for longer.
The company processes about $15bn in payments annually for nearly 60k organisations in the UK, Europe, US and Australia (for example SaaS company DocuSign, travel site TripAdvisor and fitness company Les Mills).
GoCardless’s cofounder and chief executive Hiroki Takeuchi is hugely respected in the London startup world, not least because of his return to the business following a life-threatening bike accident in 2016, which left him paralysed from the chest down.
Like many other fintechs, GoCardless benefited from the rise in digital payments during the pandemic in 2020. But after expanding into the US and launching its global direct debit network in 2019, the big question is how these international moves transpire for the company in the first real post-Brexit year.
Further reading: Brunch with Hiroki Takeuchi, founder of GoCardless (https://sifted.eu/articles/hiroki-takeuchi-gocardless-interview/)
GoCardless
Simple and cheap way to take payments online: no merchant account, no credit card fees, no hassle
fintech / payments
gocardless.comLondon, UK
2011
€1,500m
SERIES F
€882m
100-500
Sifted Take
GoCardless is not one of the glamorous fintechs that grabs headlines.
Companies pay GoCardless to collect direct debits from customers on their behalf. It then takes a fee of up to 1% from those transactions and in return also provides data to help businesses retain their customers for longer.
The company processes about $15bn in payments annually for nearly 60k organisations in the UK, Europe, US and Australia (for example SaaS company DocuSign, travel site TripAdvisor and fitness company Les Mills).
GoCardless’s cofounder and chief executive Hiroki Takeuchi is hugely respected in the London startup world, not least because of his return to the business following a life-threatening bike accident in 2016, which left him paralysed from the chest down.
Like many other fintechs, GoCardless benefited from the rise in digital payments during the pandemic in 2020. But after expanding into the US and launching its global direct debit network in 2019, the big question is how these international moves transpire for the company in the first real post-Brexit year.
Further reading: Brunch with Hiroki Takeuchi, founder of GoCardless (https://sifted.eu/articles/hiroki-takeuchi-gocardless-interview/)
Sifted Take
Soldo is one of Europe's fastest-growing fintechs. Despite being founded in 2015, in 2019 it secured the largest round of funding ever by a spend management startup in an impressive $61m Series B round led by Battery Ventures and Dawn Capital. Its services are used by over 60k businesses. In July 2020, Soldo announced it was extending its partnership with Mastercard to become a principal member of the company.
2014
€70m
SERIES B
€216-324m
100-500
Sifted Take
Soldo is one of Europe's fastest-growing fintechs. Despite being founded in 2015, in 2019 it secured the largest round of funding ever by a spend management startup in an impressive $61m Series B round led by Battery Ventures and Dawn Capital. Its services are used by over 60k businesses. In July 2020, Soldo announced it was extending its partnership with Mastercard to become a principal member of the company.
Cambridge Quantum Computing
Independent quantum computing company
enterprise software /
cambridgequantum.comLondon, UK
2014
€321m
LATE VC
€164-245m
50-100
Sifted Take
Last year, CQC made waves in the quantum community after announcing a cloud-based random number generating service and “meaning-aware” natural language processing — both of which are expected to push it into the very top of the worldwide market. It's certainly one to watch as viable and genuine quantum computing emerges.
Cambridge Quantum Computing
Independent quantum computing company
enterprise software /
cambridgequantum.comLondon, UK
2014
€321m
LATE VC
€164-245m
50-100
Sifted Take
Last year, CQC made waves in the quantum community after announcing a cloud-based random number generating service and “meaning-aware” natural language processing — both of which are expected to push it into the very top of the worldwide market. It's certainly one to watch as viable and genuine quantum computing emerges.
Multiverse
Networking platform and support for apprentices
marketplace & ecommerce / recruitment
multiverse.ioLondon, UK
2016
€58m
SERIES B
€160-240m
100-500
Sifted Take
Multiverse, formerly known as WhiteHat, secured the UK's biggest ever edtech raise in January 2021. The $44m round was led by General Catalyst but also included Google Ventures. With a new round of young adults about to finish secondary school and enter into an overwhelmed job market, its services in connecting apprentices with companies and providing training means this is likely the beginning of a strong year for the startup. Read more: Tony Blair's son secures UK's biggest ever edtech raise
Multiverse
Networking platform and support for apprentices
marketplace & ecommerce / recruitment
multiverse.ioLondon, UK
2016
€58m
SERIES B
€160-240m
100-500
Sifted Take
Multiverse, formerly known as WhiteHat, secured the UK's biggest ever edtech raise in January 2021. The $44m round was led by General Catalyst but also included Google Ventures. With a new round of young adults about to finish secondary school and enter into an overwhelmed job market, its services in connecting apprentices with companies and providing training means this is likely the beginning of a strong year for the startup. Read more: Tony Blair's son secures UK's biggest ever edtech raise

Streetbees
Connects you with real people on the ground to gather real time insights
enterprise software /
streetbees.comLondon, UK
2015
€58m
LATE VC
€182m
100-500
Sifted Take
Streetbees are in the business of documenting consumer thought — then using AI to determine general consumer psychology. Clearly there's a market for it, as its 100-strong team has earned it a market almost everywhere, from Kenya to France, and India to the UK. They claim to gather about 1m 'stories' from consumers a month in 150 countries for brands like the giant Unilever, to IKEA and Sony Pictures. What's next? Well in October 2020 it raised $40m in its Series B round led by Lakestar. We're watching to see what they do with it. Streetbees raises $40m — but what's in it for the bees?

Streetbees
Connects you with real people on the ground to gather real time insights
enterprise software /
streetbees.comLondon, UK
2015
€58m
LATE VC
€182m
100-500
Sifted Take
Streetbees are in the business of documenting consumer thought — then using AI to determine general consumer psychology. Clearly there's a market for it, as its 100-strong team has earned it a market almost everywhere, from Kenya to France, and India to the UK. They claim to gather about 1m 'stories' from consumers a month in 150 countries for brands like the giant Unilever, to IKEA and Sony Pictures. What's next? Well in October 2020 it raised $40m in its Series B round led by Lakestar. We're watching to see what they do with it. Streetbees raises $40m — but what's in it for the bees?

Moneybox
Investment app
fintech / investing
moneyboxapp.comLondon, UK
2015
€57m
GROWTH EQUITY
€144-216m
100-500
Sifted Take
The pandemic didn't touch Moneybox. In fact, in March of 2020 it closed a Series C with a valuation of $132m, and accelerated hiring towards the end of July. Related: UK trading apps up to 20x cheaper than incumbents
2015
€57m
GROWTH EQUITY
€144-216m
100-500
Sifted Take
The pandemic didn't touch Moneybox. In fact, in March of 2020 it closed a Series C with a valuation of $132m, and accelerated hiring towards the end of July. Related: UK trading apps up to 20x cheaper than incumbents

Heroes
Ecommerce company that acquires and scales up Amazon businesses
marketplace & ecommerce /
makeheroes.coLondon, UK
2020
€55m
SEED
Sifted Take
Heroes had the biggest seed round of any European in 2020.

Heroes
Ecommerce company that acquires and scales up Amazon businesses
marketplace & ecommerce /
makeheroes.coLondon, UK
2020
€55m
SEED
Sifted Take
Heroes had the biggest seed round of any European in 2020.

Eigen Technologies
Provides machine learning, qualitative analysis tool for businesses
legal / enterprise software
eigentech.comLondon, UK
2014
€55m
SERIES B
€18-27m
100-500
Sifted Take
The financial services industry goes through a lot of documents, so of course its interested in natural language processing capabilities — and Eigen Technologies is a startup that does just that. Founded in 2014, their clients include Blackrock, Allen & Overy, and one-third of all G-SIBs. In 2020, its Series B round raised $42m, led by Goldman Sachs and ING. Read more: How AI is changing the game for banks

Eigen Technologies
Provides machine learning, qualitative analysis tool for businesses
legal / enterprise software
eigentech.comLondon, UK
2014
€55m
SERIES B
€18-27m
100-500
Sifted Take
The financial services industry goes through a lot of documents, so of course its interested in natural language processing capabilities — and Eigen Technologies is a startup that does just that. Founded in 2014, their clients include Blackrock, Allen & Overy, and one-third of all G-SIBs. In 2020, its Series B round raised $42m, led by Goldman Sachs and ING. Read more: How AI is changing the game for banks

Form3
Cloud-based platform for complete end-to-end processing of payments
fintech / payments
form3.techLondon, UK
2016
€52m
SERIES C
€120-180m
100-500
Sifted Take
Form3 helps banks and fintechs make super-fast payments using its cloud-based platform. In its latest Series C funding round, it raised $33m from investors including Nationwide and Lloyds — part of the deal involves the two banks implementing the technology for their customers. Their plan is to build a global transaction platform for SMEs real-time services, to roll out to at least 690k small firms by the end of 2023. Such a big target has got to mean they're one to watch.

Form3
Cloud-based platform for complete end-to-end processing of payments
fintech / payments
form3.techLondon, UK
2016
€52m
SERIES C
€120-180m
100-500
Sifted Take
Form3 helps banks and fintechs make super-fast payments using its cloud-based platform. In its latest Series C funding round, it raised $33m from investors including Nationwide and Lloyds — part of the deal involves the two banks implementing the technology for their customers. Their plan is to build a global transaction platform for SMEs real-time services, to roll out to at least 690k small firms by the end of 2023. Such a big target has got to mean they're one to watch.

Cleo
An intelligent assistant for your money
fintech / AI
meetcleo.comLondon, UK
2016
€52m
SERIES B
€160-240m
50-100
Sifted Take
Cleo leads in the financial wellness niche, although it doesn't quite offer the whole nine yards, lacking tailored saving advice or hacks for users. Read more: The best London startups to work at in 2021
2016
€52m
SERIES B
€160-240m
50-100
Sifted Take
Cleo leads in the financial wellness niche, although it doesn't quite offer the whole nine yards, lacking tailored saving advice or hacks for users. Read more: The best London startups to work at in 2021

Duffel
API-based travel agency platform
marketplace & ecommerce / travel
duffel.comLondon, UK
2017
€51m
SERIES B
€109-164m
10-50
Sifted Take
Duffel may be set back by Covid-19, but prior to the pandemic it was set to transform the travel sector by integrating customisable flight add-on services in its business-to-business service. American Airlines and British Airways are just two of its clients.
Read more: Startup travel disrupter Duffel raises another $30m and finally comes out to stealth
2017
€51m
SERIES B
€109-164m
10-50
Sifted Take
Duffel may be set back by Covid-19, but prior to the pandemic it was set to transform the travel sector by integrating customisable flight add-on services in its business-to-business service. American Airlines and British Airways are just two of its clients.
Read more: Startup travel disrupter Duffel raises another $30m and finally comes out to stealth

Tractable.AI
Insurtech using AI to evaluate costs
fintech; enterprise software / insurance
tractable.aiLondon, UK
2014
€104m
SERIES D
€91-136m
100-500
Sifted Take
The startup uses AI to predict the cost behind car accidents and natural disaster repairs. In February 2020, it raised $25m in a round led by Georgian Partners. It plans to expand across Europe, parts of Asia and North America. Related: How to stop the looming “AI winter”

Tractable.AI
Insurtech using AI to evaluate costs
fintech; enterprise software / insurance
tractable.aiLondon, UK
2014
€104m
SERIES D
€91-136m
100-500
Sifted Take
The startup uses AI to predict the cost behind car accidents and natural disaster repairs. In February 2020, it raised $25m in a round led by Georgian Partners. It plans to expand across Europe, parts of Asia and North America. Related: How to stop the looming “AI winter”

Wagestream
App for employees to access earned wages before payday
fintech / financial management solutions
wagestream.co.ukLondon, UK
2018
€47m
SERIES B
€96-144m
50-100
Sifted Take
Wagestream is one of the most innovative of the 'buy now, pay later' startups. It allows users to draw down a percentage of their earned wages before payday without any interest at all, at a flat fee of £1.75 — in an attempt to prevent the public entering into cycles of debt and payday loans. It's clearly working: with over 300k customers and a £20m Series B round in July 2020. But it's also clearly necessary, as according to its CEO Briffett, 55% of UK households don't have £250 in savings to access in an emergency. Let's see how it fares against other 'salary-on-demand' fintechs like Hastee, also based in the UK. Read more: The rise of an ethical alternative to payday lenders?

Wagestream
App for employees to access earned wages before payday
fintech / financial management solutions
wagestream.co.ukLondon, UK
2018
€47m
SERIES B
€96-144m
50-100
Sifted Take
Wagestream is one of the most innovative of the 'buy now, pay later' startups. It allows users to draw down a percentage of their earned wages before payday without any interest at all, at a flat fee of £1.75 — in an attempt to prevent the public entering into cycles of debt and payday loans. It's clearly working: with over 300k customers and a £20m Series B round in July 2020. But it's also clearly necessary, as according to its CEO Briffett, 55% of UK households don't have £250 in savings to access in an emergency. Let's see how it fares against other 'salary-on-demand' fintechs like Hastee, also based in the UK. Read more: The rise of an ethical alternative to payday lenders?
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