API · United Kingdom
Top API Companies in United Kingdom (2026 Update)
BounceWatch lists 77 API companies in United Kingdom. Half were founded in 2017 or later. 51% have a recorded funding round, 1 in the last twelve months. Most are based in London, Edinburgh and Dorset.
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- Companies
- 77
- Median founded
- 2017
- of 77 with a year
- Raised funding
- 51%
- 39 companies
- Hiring now
- 5
- companies with open roles
What changed at these 77 companies recently?
We recorded 16 changes here in the last 180 days, including 9 product launches, 3 awards, 2 traction updates, 1 milestones and 1 expansion moves. Each entry below carries the date we observed it, from public sources.
Showing 77 Companies
| Company | City | Founded | Focus | Services | Target Customers | Business Model | Revenue Model | Employees | Funding Stage | |
|---|---|---|---|---|---|---|---|---|---|---|
|
Tyk
Open Source #API gateway & #APImanagement platform. We'… |
London
|
2015 |
Open Source API Management
API Gateway
+13
|
Tyk API Management
API Gateway
+4
|
Banking & Financial Services
Travel & Hospitality
+7
|
B2B
SaaS
+1
|
Subscription
Usage Based
+1
|
139 | Series B |
|
social.plus
The in-app community, insights and monetization platfor… |
London
|
2021 |
In-app Community
Monetization Platform
+13
|
Pre-built Modules And SDKs For Social Media Features
In-app Video Streaming And Live Commerce
+4
|
Retail & E-Commerce
Social And Communities
+7
|
B2B
SaaS
+1
|
Subscription
Usage Based
+1
|
363 | Series C |
|
Hypi
Hypi offers low-code app development for innovation, en… |
London
|
2018 |
Low-code App Development
Innovation Enablement
+13
|
AI Workflow Design And Execution
Agentic Workflow Engine Development
+2
|
Businesses Seeking Automation
Enterprises With Complex Workflows
+2
|
— | — | — | Pre-Seed |
|
Sohar Health (YC S23)
AI-driven eligibility determination and Verification of… |
London
|
2023 |
AI-driven Healthcare
Behavioral Health
+11
|
Real-Time Insurance Eligibility Checks
Patient Coverage Discovery
+2
|
Healthcare Providers
Medical Practices
+2
|
— | — | 9 | Seed |
|
Impala
Impala helps companies to control travel spend, without… |
London
|
2017 |
Corporate Travel Management
Travel Expense Control
+11
|
Accommodation Negotiation & Management
Airline & Ground Transport Negotiation
+4
|
Businesses With Significant Corporate Travel Needs Seeking Cost-effective Solutions And Optimized Travel Experiences
|
— | — | 220 | Series B |
|
|
Youtility
Youtility’s foundational behavioral mindset APIs power… |
London
|
2015 |
Embedded Subscription Manage...
Banking Technology
+10
|
Behavioral Analytics
Embedded Subscription Management
|
Financial Institutions
Fintech Companies
+2
|
B2B
API
+1
|
Subscription
Usage Based
+1
|
46 | Seed |
|
Cyclr
Powerful embedded integration toolkit for SaaS co.s. to… |
London
|
2013 |
Embedded IPaaS
SaaS Integration
+9
|
— | — | — | — | 42 | Venture round |
|
Cercula
Carbon Assessment, made simple. |
London
|
2020 |
Carbon Assessment
Construction Projects
+12
|
Online Gambling
Live Casino
+3
|
Gamblers
Casino Enthusiasts
+1
|
— | — | 1 | Pre-Seed |
|
WealthKernel
Flexible embedded investing |
London
|
2015 |
Investing Infrastructure As...
API Integration
+13
|
User Onboarding
Accounts
+7
|
Fintech Startups
Established Businesses
+1
|
— | — | 34 | Series A |
|
Cronofy
Temporal infrastructure connecting agents, systems, and… |
Nottingham
|
2014 |
Embedded Scheduling
Calendar Integration
+11
|
Availability Control
Full Scheduling Lifecycle
+1
|
SaaS Product Builders
Recruitment Teams
+6
|
B2B
API
+1
|
Subscription
Tiered Pricing
+1
|
45 | Venture round |
|
Kite.ly is now part of Prodigi...
Prodigi Group acquired Kite.ly from Canon in August, 20… |
London
|
2014 |
Print-on-demand
E-commerce Software
+10
|
— | — | — | — | 1 | Seed |
|
Asterias
An integrated technology platform for insured and unins… |
London
|
2021 |
Insurance Technology
Claims Management
+9
|
— | — | — | — | 11 | Pre-Seed |
|
Hostarium
Secure managed hosting for your digital world |
London
|
2017 |
Managed Hosting
Containerisation Technology
+8
|
— | — | — | — | 3 | Pre-Seed |
|
Envaluate
Envaluate leverages open banking technology to help use… |
London
|
2020 |
Banking
|
— | — | — | — | 1 | Pre-Seed |
|
Tenzo - Restaurant Performance...
Supercharging restaurant performance #operation #resta… |
London
|
2016 |
Restaurant PerformanceOps
Inventory Management
+8
|
Restaurant PerformanceOps
Data Analytics
+1
|
Restaurants
Hospitality Industry Professionals
+1
|
— | — | 33 | Series A |
|
|
Radom
Crypto Payments for Business |
London
|
2023 |
Crypto Payments
Blockchain Scalability
+9
|
White-labeled Crypto Payments Integration
Crypto Subscription Management
+3
|
E-commerce Platforms
Software As A Service (SaaS) Providers
+3
|
— | — | 32 | — |
|
Synthesized
The pre-production data plane for enterprise AI | Test… |
London
|
2020 |
AI-Powered Test Data Automat...
Enterprise Application Testi...
+13
|
Test Data Automation
Data Generation And Masking
+4
|
Software Engineers
QA Teams
+5
|
B2B
SaaS
+1
|
Subscription
Usage Based
+1
|
60 | Series A |
|
Business Score
We're on a mission to make access to business funding:… |
London
|
2019 |
Embedded Finance
Business Funding
+4
|
Universal API For Business Lending
Lending Marketplace
+2
|
Neobanks
Marketplaces
+4
|
— | — | 4 | Seed |
|
Root
The proven API-first insurance platform to build, launc… |
London
|
2016 |
API-first
Low-code Platform
+13
|
End-to-End Insurance Platform
Product Workbench
+3
|
Insurers
Managing General Agents (MGAs)
+4
|
B2B
Platform
+1
|
Usage Based
Service Fee
+1
|
136 | Venture round |
|
Civo
Built for more. More control. More power. More possibil… |
London
|
2015 |
Cloud Computing
Cloud Infrastructure
+11
|
Kubernetes-powered Cloud
High-performance Computing
+6
|
Ambitious Startups
Major Enterprises
+6
|
IaaS
B2B
+1
|
Usage Based
Pay As You Go
+1
|
83 | Corporate Round |
Showing 20 of 77 companies in this list
