79 Best London Developer Tools Startups to Watch in 2023 | Seedtable

79 Developer Tools Startups in London to Watch in 2023

London's Developer Tools sector is booming. This year’s list of the best 79 London Developer Tools startups is an eclectic mix of hyper-growth scaleups, small creative startups and everything in between.

The last update was made on March 15, 2023.

Curated by @gonsanchezs

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Hadean

Hadean are a venture backed startup, reimagining distributed, spatial and scalable computing for web 3.0 and the metaverse.

London   101 to 250   $66 Million   $9.6 Million  

Entrepreneur First   Molten Ventures   7percent Ventures   Aster Capital   2050  

B2B   SAAS  

Secure a sponsored spot for your company

Exclaimer

Exclaimer is a provider of an email signature management platform for cloud services such as Microsoft 365 and Google Workspace.

London   251 to 500   $160 Million   $130 Million  

Insight Venture Partners  

B2B   SAAS  

Secure a sponsored spot for your company

Hadean

Hadean are a venture backed startup, reimagining distributed, spatial and scalable computing for web 3.0 and the metaverse.

London   101 to 250   $66 Million   $9.6 Million  

Entrepreneur First   Molten Ventures   7percent Ventures   Aster Capital   2050  

B2B   SAAS  

Secure a sponsored spot for your company

Quix

Quix is a server-less real-time data platform that provides real-time back-end application and data processing services.

London   11 to 50   $16 Million   $3.2 Million  

Project A Ventures   MMC Ventures   Passion Capital  

B2B   SAAS  

Secure a sponsored spot for your company

Quix

Quix is a server-less real-time data platform that provides real-time back-end application and data processing services.

London   11 to 50   $16 Million   $3.2 Million  

Project A Ventures   MMC Ventures   Passion Capital  

B2B   SAAS  

Secure a sponsored spot for your company

Impala

Impala's API connects room sellers and hotels, instantly. We empower you to build, innovate and sell.

London   51 to 100   $33 Million   $11 Million  

Kima Ventures   Lakestar   Speedinvest   Stride VC   Latitude  

B2B   SAAS  

Secure a sponsored spot for your company

Quix

Quix is a server-less real-time data platform that provides real-time back-end application and data processing services.

London   11 to 50   $16 Million   $3.2 Million  

Project A Ventures   MMC Ventures   Passion Capital  

B2B   SAAS  

Secure a sponsored spot for your company

Legl

Legl provides cloud-based solutions bringing law firms into the digital-first world.

London   11 to 50   $25 Million   $7 Million  

BACKED VC   Octopus Ventures   Samaipata Ventures  

B2B   SAAS  

Secure a sponsored spot for your company

Weavr

Weavr is an online platform that creates, integrates, deploys, and runs digital payment flows.

London   1 to 10   $54 Million   $650 Thousand  

Seedcamp   Latitude   Force Over Mass Capital   Anthemis   Headline  

B2B   SAAS  

Secure a sponsored spot for your company

Plain.

Customer support for modern tools. Fast, flexible and extendable.

London   1 to 10   $0   $6 Million  

Index Ventures   Connect Ventures  

Secure a sponsored spot for your company

Weaveworks

Weaveworks simplifies operating Kubernetes workloads and provides a developer-centric operating model for cloud-native applications.

London   11 to 50   $62 Million  

Accel   GV   Redline Capital  

B2B   SAAS  

Secure a sponsored spot for your company

Weaveworks

Weaveworks simplifies operating Kubernetes workloads and provides a developer-centric operating model for cloud-native applications.

London   11 to 50   $62 Million  

Accel   GV   Redline Capital  

B2B   SAAS  

Secure a sponsored spot for your company

Surfboard

Surfboard provides scheduling and building workforce management through customer service software.

London   11 to 50   $4.9 Million   $1.6 Million  

Seedcamp   Speedinvest   Fly Ventures  

B2B   SAAS  

Secure a sponsored spot for your company

Tickitto

Tickitto is a travel technology company that develops a ticket assistant platform to help people book tickets.

London   1 to 10   $5.1 Million   $690 Thousand  

Seedcamp   Vorwerk Ventures   Triple Point Ventures  

B2B   SAAS  

Secure a sponsored spot for your company

SearchLand

SearchLand is a proptech that lets property developers and investors find potential sites and contact landowners directly via the platform.

London   1 to 10   $3 Million   $270 Thousand  

Fuel Ventures  

B2B   SAAS   MARKETPLACE  

Secure a sponsored spot for your company

Digger

Generates infrastructure for your code in your cloud account so you can build on AWS without having to learn it

London   1 to 10   $3.3 Million   $3.3 Million  

Entrepreneur First   Notion Capital   Firstminute Capital  

B2B   SAAS  

Secure a sponsored spot for your company

Digger

Generates infrastructure for your code in your cloud account so you can build on AWS without having to learn it

London   1 to 10   $3.3 Million   $3.3 Million  

Entrepreneur First   Notion Capital   Firstminute Capital  

B2B   SAAS  

Secure a sponsored spot for your company

Digger

Generates infrastructure for your code in your cloud account so you can build on AWS without having to learn it

London   1 to 10   $3.3 Million   $3.3 Million  

Entrepreneur First   Notion Capital   Firstminute Capital  

B2B   SAAS  

Secure a sponsored spot for your company

Fuzey

Build better customer relationships with multi-channel messaging. Fuzey’s customer hub gives you all the tools you need to grow your biz

London   1 to 10   $5.2 Million   $710 Thousand  

Global Founders Capital (GFC)   Ascension Ventures   byFounders  

B2B   SAAS   MARKETPLACE  

Secure a sponsored spot for your company

Railsr

Railsbank is a platform and financial services, enabling banks, businesses and brands to define the future of consumer and SME finance.

London   251 to 500   $190 Million   $37 Million  

Outrun Ventures   Middlegame Ventures  

B2B   SAAS  

Secure a sponsored spot for your company

Glasswall

Glasswall is a technology company that protects organizations from file-based threats.

London   51 to 100   $71 Million   $24 Million  

B2B   SAAS  

Secure a sponsored spot for your company

Glasswall

Glasswall is a technology company that protects organizations from file-based threats.

London   51 to 100   $71 Million   $24 Million  

B2B   SAAS  

Secure a sponsored spot for your company

Monolith AI

Monolith AI develops an AI assistant designed to help engineers improve product development.

London   11 to 50   $14 Million   $2.4 Million  

Insight Venture Partners   Ascension Ventures  

B2B   SAAS  

Secure a sponsored spot for your company

zeroheight

Zeroheight is a DevOps platform that allows design teams to create up-to-date style guides and document their design system resources.

London   11 to 50   $11 Million   $150 Thousand  

Y Combinator  

B2B   SAAS  

Secure a sponsored spot for your company

Qredo

Qredo is a platform that provides secure and fast movement of digital assets.

London   11 to 50   $190 Million   $11 Million  

SVK Crypto   G1 Ventures  

B2B  

Secure a sponsored spot for your company

Munch

Website builder platform

London     $1.5 Million   $1.5 Million  

Notion Capital  

B2B   SAAS  

Secure a sponsored spot for your company

Distributed

Distributed is a software development company that provides an on-demand Elastic Team that allows getting things done faster.

London   11 to 50   $61 Million   $2 Million  

Fuel Ventures  

B2B   SAAS  

Secure a sponsored spot for your company

Skiller Whale

SaaS for getting the most from a software dev team

London   1 to 10   $3.8 Million   $820 Thousand  

Concept Ventures   Playfair Capital  

B2B   B2C   SAAS   MARKETPLACE  

Secure a sponsored spot for your company

Metomic

Metomic detects, classifies and controls sensitive data in cloud applications

London   11 to 50   $5.6 Million   $1.8 Million  

Connect Ventures  

B2B   SAAS  

Secure a sponsored spot for your company

EVRYTHNG

EVRYTHNG develops an IoT platform for consumer product brands, articulating data with real-time insights for billions of things.

London   51 to 100   $51 Million   $10 Million  

Bloc Ventures   IDC Ventures  

B2B   SAAS  

Secure a sponsored spot for your company

Fidel API

Fidel API is a global financial infrastructure platform, providing tools to build powerful, real-time products on top of payment cards.

London   51 to 100   $86 Million   $18 Million  

B2B   SAAS  

Secure a sponsored spot for your company

Tatum

Tatum gives developers, entrepreneurs, and businesses a platform to utilize blockchain technology regardless of the blockchain.

London   51 to 100   $50 Million   $120 Thousand  

Octopus Ventures   LeadBlock Partners  

B2B   SAAS  

Secure a sponsored spot for your company

Artificial Labs

Artificial is building the next generation of insurance technology to empower commercial insurers to write better risks, faster.

London   11 to 50   $17 Million   $2.9 Million  

Force Over Mass Capital   Mundi Ventures  

B2B   SAAS  

Secure a sponsored spot for your company

Conjura

Conjura is a company that draws on expertise in consultancy, software engineering, data science and analytics.

London   11 to 50   $16 Million   $16 Million  

Act Venture Capital   Middlegame Ventures  

B2B   SAAS  

Secure a sponsored spot for your company

Devtech

Devtech is a Professional Services company focused on cloud enablement solutions for Telcos, CSPs, ISVs and MSPs.

London   101 to 250   $13 Million   $13 Million  

B2B  

Secure a sponsored spot for your company

42Crunch

42Crunch is an API Security platform, addressing the development, testing, and deployment security requirements of API infrastructure.

London   11 to 50   $21 Million   $17 Million  

Adara Ventures   Energy Impact Partners  

B2B   SAAS  

Secure a sponsored spot for your company

Insurami

Insurami offers a deposit guarantee platform for commercial real estate

London   1 to 10   $2.5 Million  

Entrepreneur First   Global Founders Capital (GFC)  

B2B  

Secure a sponsored spot for your company

Cyscale

Cloud-native Security and Compliance - scalable Products and Services for Cloud Cybersecurity, DevSecOps and Cloud Security Management.

London   11 to 50   $3.8 Million  

Seedcamp   Notion Capital  

B2B   SAAS  

Secure a sponsored spot for your company

Cyscale

Cloud-native Security and Compliance - scalable Products and Services for Cloud Cybersecurity, DevSecOps and Cloud Security Management.

London   11 to 50   $3.8 Million  

Seedcamp   Notion Capital  

B2B   SAAS  

Secure a sponsored spot for your company

Cyscale

Cloud-native Security and Compliance - scalable Products and Services for Cloud Cybersecurity, DevSecOps and Cloud Security Management.

London   11 to 50   $3.8 Million  

Seedcamp   Notion Capital  

B2B   SAAS  

Secure a sponsored spot for your company

Cyscale

Cloud-native Security and Compliance - scalable Products and Services for Cloud Cybersecurity, DevSecOps and Cloud Security Management.

London   11 to 50   $3.8 Million  

Seedcamp   Notion Capital  

B2B   SAAS  

Secure a sponsored spot for your company

Cerbos

Cerbos is a software company that makes user permissions and authorization simple to implement and manage.

London   1 to 10   $3.5 Million  

Earlybird Venture Capital   Seedcamp   Connect Ventures   Crane Venture Partners   Tiny VC  

B2B   SAAS  

Secure a sponsored spot for your company

NeuralSpace

The one-stop solution for all your NLP needs in 100+ languages

London   11 to 50   $3.1 Million   $120 Thousand  

APX  

B2B   SAAS  

Secure a sponsored spot for your company

Northflank

The comprehensive developer platform to build and scale microservices, jobs and managed databases.

London   1 to 10   $2.6 Million  

Kindred Capital   Stride VC  

B2B   SAAS  

Secure a sponsored spot for your company

Makers

Our mission is to transform lives: accelerating the careers of tech professionals by integrating education and employment.

London   11 to 50   $0   $8.6 Million  

Secure a sponsored spot for your company

Arkivum

We deliver software, services & expertise for long-term data management and digital preservation globally

London   11 to 50   $25 Million   $3.9 Million  

Parkwalk Advisors  

B2B   SAAS  

Secure a sponsored spot for your company

Synchtank

The SaaS software platform for managing and monetizing music & media assets

London   11 to 50   $7.2 Million   $750 Thousand  

Octopus Ventures  

B2B   SAAS  

Secure a sponsored spot for your company

Tyk

Tyk is an open source API gateway and management platform that provides on-premises, cloud/multi-cloud, and enterprise.

London   101 to 250   $40 Million   $5 Million  

MMC Ventures  

B2B   SAAS  

Secure a sponsored spot for your company

Ori Industries

Ori is a global cloud to edge platform enabling modern businesses to manage and deploy workloads across any infrastructure

London   11 to 50   $13 Million   $2 Million  

Force Over Mass Capital   Episode 1  

B2B   SAAS  

Secure a sponsored spot for your company

BMLL Technologies

BMLL Technologies is the leading, independent provider of Level 3 Historical Data and Analytics for Capital Markets participants.

London   51 to 100   $38 Million   $2.5 Million  

ACF Investors   IQ Capital Partners   QVentures  

B2B   SAAS  

Secure a sponsored spot for your company

AND Digital

AND Digital provides product strategy, data engineering, mobile apps, cloud, software, consulting, UX research, and design services.

London   1001 to 5000   $0   $11 Million  

Business Growth Fund  

B2B  

Secure a sponsored spot for your company

Push Security

Push Security is a developer of a security automation platform.

London   11 to 50   $4 Million   $4 Million  

B2B   SAAS  

Secure a sponsored spot for your company

Frolo

Frolo provides community app for single parents to connect with like-minded local single parents for support, guidance and virtual meetups.

London   1 to 10   $500 Thousand   $670 Thousand  

Ada Ventures  

B2C   MARKETPLACE  

Secure a sponsored spot for your company

GDevelop

GDevelop is an open-source, cross-platform game engine designed for everyone.

London   1 to 10   $0  

Kima Ventures   Ascension Ventures  

B2B   SAAS  

Secure a sponsored spot for your company

LemonEdge

LemonEdge is a low-code development platform with integrated accounting engine, designed for financial services.

London   1 to 10   $2.5 Million   $2.5 Million  

B2B   SAAS  

Secure a sponsored spot for your company

tru.ID

tru.ID is reinventing mobile authentication for today's world through a modern developer platform.

London   11 to 50   $9 Million   $3.8 Million  

MMC Ventures   Episode 1  

B2B   SAAS  

Secure a sponsored spot for your company

Greenpixie

Greenpixie measures and understands cloud emissions and provides the tools to demystify the environmental impact of cloud computing.

London   1 to 10   $300 Thousand   $300 Thousand  

Ascension Ventures  

B2B   SAAS  

Secure a sponsored spot for your company

Quality Clouds

DevOps for Low-Code / No-Code

London   11 to 50   $8.1 Million   $1.2 Million  

Aldea VC   Adara Ventures  

B2B   SAAS  

Secure a sponsored spot for your company

Quality Clouds

DevOps for Low-Code / No-Code

London   11 to 50   $8.1 Million   $1.2 Million  

Aldea VC   Adara Ventures  

B2B   SAAS  

Secure a sponsored spot for your company

Cyclr

SaaS integration platform for SaaS companies. Deliver powerful integrations and workflows direct to users from within your SaaS application.

London   51 to 100   $12 Million   $660 Thousand  

Blackfinch Ventures   Praetura Ventures  

B2B   SAAS  

Secure a sponsored spot for your company

Evorra

SaaS marketplace, clean room technology, full transparency, privacy and data compliance at scale

London   1 to 10   $2.7 Million   $1 Million  

B2B   SAAS   MARKETPLACE  

Secure a sponsored spot for your company

Cyclr

SaaS integration platform for SaaS companies. Deliver powerful integrations and workflows direct to users from within your SaaS application.

London   51 to 100   $12 Million   $660 Thousand  

Blackfinch Ventures   Praetura Ventures  

B2B   SAAS  

Secure a sponsored spot for your company

Cyclr

SaaS integration platform for SaaS companies. Deliver powerful integrations and workflows direct to users from within your SaaS application.

London   51 to 100   $12 Million   $660 Thousand  

Blackfinch Ventures   Praetura Ventures  

B2B   SAAS  

Secure a sponsored spot for your company

Memgraph

Memgraph is an open source graph database built for real-time streaming and compatible with Neo4j.

London   11 to 50   $18 Million  

Mundi Ventures   Id4 ventures  

B2B   SAAS  

Secure a sponsored spot for your company

WealthKernel

WealthKernel is a supplier of infrastructure for companies looking to offer digital investment services.

London   11 to 50   $14 Million  

Digital Horizon   Big Start Ventures   Portfolio Ventures  

B2B   SAAS  

Secure a sponsored spot for your company

Memgraph

Memgraph is an open source graph database built for real-time streaming and compatible with Neo4j.

London   11 to 50   $18 Million  

Mundi Ventures   Id4 ventures  

B2B   SAAS  

Secure a sponsored spot for your company

SalesTrip

Expense management and travel booking system on Salesforce. Better track and justify expense spend with SalesTrip.

London   11 to 50   $4 Million   $1.4 Million  

B2B   SAAS  

Secure a sponsored spot for your company

8XR

The most powerful metaverse graphic web engine

London   1 to 10   $820 Thousand   $820 Thousand  

B2B   SAAS  

Secure a sponsored spot for your company

StackZone

StackZone is a secure, cost-efficient, and self-service cloud management platform for multi-account environments

London   11 to 50   $1.9 Million   $1.9 Million  

B2B   SAAS  

Secure a sponsored spot for your company

Hypi

Hypi is an no-code and low-code application developer community centered around its SaaS & Enterprise platforms.

London   11 to 50   $210 Thousand   $200 Thousand  

B2B   SAAS  

Secure a sponsored spot for your company

ScaleXP

ScaleXP is an automated analytics platform that helps small businesses consolidate their financial and sales data.

London   1 to 10   $850 Thousand   $850 Thousand  

B2B   SAAS  

Secure a sponsored spot for your company

Airex

Airex is a smart ventilation control that builds intelligent air ventilation units using atmospheric sensors and cloud algorithms.

London   1 to 10   $740 Thousand   $640 Thousand  

B2B  

Secure a sponsored spot for your company

StackZone

StackZone is a secure, cost-efficient, and self-service cloud management platform for multi-account environments

London   11 to 50   $1.9 Million   $1.9 Million  

B2B   SAAS  

Secure a sponsored spot for your company

RoyaltyRange

RoyaltyRange is an intellectual property royalty rates database.

London   11 to 50   $420 Thousand   $600 Thousand  

B2B  

Secure a sponsored spot for your company

Censornet

CensorNet Unified Security Service (USS) is a new-generation comprehensive cloud-based cyber security solution.

London   51 to 100   $3.4 Million  

B2B  

Secure a sponsored spot for your company

Airex

Airex is a smart ventilation control that builds intelligent air ventilation units using atmospheric sensors and cloud algorithms.

London   1 to 10   $740 Thousand   $640 Thousand  

B2B  

Secure a sponsored spot for your company

i6 Group

i6 is a provider of a digital fuel management platform to connect stakeholders across all stages of the aircraft refueling process.

London   51 to 100   $0  

B2B   SAAS  

Secure a sponsored spot for your company

MetaCompliance

MetaCompliance is a cyber security and compliance organisation.

London   51 to 100   $0  

B2B   SAAS  

Secure a sponsored spot for your company

Privasee

Privasee automatically generates and updates your GDPR documents and cookie banner if anything changes in your business or the law.

London   1 to 10   $0  

Charlotte Street Capital  

B2B   SAAS  

Secure a sponsored spot for your company

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