Best Startup
This article showcases our top picks for the best English Developer APIs companies. These startups and companies are taking a variety of approaches to innovating the Developer APIs industry, but are all exceptional companies well worth a follow.
We tried to pick companies across the size spectrum from cutting edge startups to established brands.
We selected these startups and companies for exceptional performance in one of these categories:
- Innovation
- Innovative ideas
- Innovative route to market
- Innovative product
- Growth
- Exceptional growth
- Exceptional growth strategy
- Management
- Societal impact
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Top English Developer APIs Startups
Data sourced from Crunchbase and SemRush.
Railsbank
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Railsbank is an open banking API and platform that gives regulated and un-regulated companies access to global banking.
TrueLayer
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TrueLayer is a fintech platform utilized to build financial apps that connect to bank data, verify accounts, and access transactions.
Codat
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Codat is an API platform that provides real-time connectivity to the financial software used by small businesses.
Duffel
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Duffel provides an online platform that allows users to search, book, and manage flights from multiple airlines.
Bud
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Bud is a financial network combining APIs & data to create a new species of connected experiences.
42Crunch
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42Crunch is an API Security platform, addressing the development, testing, and deployment security requirements of API infrastructure.
FIDEL API
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Fidel is a payments API platform for developers, providing tools to build powerful, real-time products on top of payment cards.
Amity
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Amity powers in-app social experiences, helping developers to easily add pre-built social features to any app with a few lines of code.
WealthKernel
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WealthKernel is a supplier of infrastructure for companies looking to offer digital investment services.
Tyk
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Tyk is an open source API gateway and management platform that provides on-premises, cloud/multi-cloud, and enterprise.
Pusher
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Pusher Ltd. provides a hosted API service for adding real-time bi-directional.
tru.ID
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tru.ID is reinventing mobile authentication for today’s world through a modern developer platform.
ARWAY
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ARWAY is a spatial mapping platform critical to building the Metaverse.
Nethermind
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API marketplace with blockchain payments for pay as you go for API usage, Ethereum clients, infrastructure and consulting.
TouchNote
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TouchNote helps you send thoughtful cards and prints to loved ones, right from your mobile, tablet or desktop.
Metomic
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The power of data without the risk. Metomic detects & protects sensitive data across all your internal databases & cloud applications.
Hutoma
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Hutoma is a building emotionally evolved AI interfaces for connected devices, app and web powered by Deep Learning.
Synth
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Synthetic data for quicker and privacy compliant development and testing
Photocert
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Validates the authenticity of photos & videos and performs image analysis to automate processes with a focus in the insurance sector.
Modularity Grid
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Intelligent power management for terrestrial and aerospace use cases
MindLink Software
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MindLink provides business critical collaboration enabled through Enterprise Chat.
ParcelBright
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ParcelBright provides small e-commerce stores with package deliver services.
Repay Solutions
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Over The Top payment platform connecting businesses to the latest real-time payments innovations without changing bank.
Imin
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Imin is a technology firm that makes physical activity searchable & bookable by using open data in the health and fitness sector.
Apply Financial
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Validate API ( for single realtime payment validation) and Validate Data Manager API (for bulk payment file validation )
Impala
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Impala’s API connects room sellers and hotels, instantly. We empower you to build, innovate and sell.
Kite
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KITE is the most advanced software platform for powering a global print-on-demand internet business.
Therapy-Box
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Therapy-Box are developers specialising in healthcare and education.
Hostarium
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Hostarium’s unique platform provides scalable, affordable hosting solutions using the power of Google Cloud
CRUZEO Protocol
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CRUZEO is a platform which lets users build at-scale decentralized marketplaces; with just a few clicks, no code necessary.
Careerjet
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Careerjet is a semantic analysis technology-based vertical search engine connecting various job vacancy listings globally.
Pole Star Space Applications
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Pole Star is a SaaS software solutions and APIs development company.
Fondy
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International smart payment platform. Online acquiring with global benefits.
Flagsmith
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Flagsmith lets you manage feature flags and remote config across web, mobile and server side applications. We’re 100% Open Source.
ComplyCube
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ComplyCube is a cloud platform for automating Identity Verification (IDV), Anti-Money Laundering (AML) & Know Your Customer (KYC) compliance
Babl Global Limited
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A Cloud, SaaS Secure Video, Audio meeting and Events business using our own proprietary technology.
KashFlow Software
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KashFlow Software is a simple but powerful, online accounting package developed with small business owners in mind.
Magora Systems
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Magora Systems is a team of result-driven people, who love what they do. We like to wow people with our fresh and inspiring products.
Qwerly
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Qwerly aggregates social media data from various sources and makes it available via an API.
Carryr
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We’re on a mission to supercharge the end-to-end delivery experience for fashion retailers and their customers.
NStack
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NStack is a platform which connects data sources, predictive models, and internal tools together.
MockLab
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Super-fast hosted API mocking (Service Virtualization), with a QA-friendly UI
SwiftDil
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A connected platform to automate Anti-Money Laundering (AML) and Know Your Customer (KYC) Processes — API & Web Portal
Pirean
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Consumer and Workforce Identity as a Service, Pirean simplifies how customer’s deliver IAM capabilities for enterprise web and mobile apps.
Data Catalyst
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Smart Data delivered as a Service – simply, safely, and securely.
Qoder
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Secure and Protect your companies customer facing APIs by using the Qoder geo-dispersed network of API gateways.
Retechnica
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What it is Ingenia is a text analytics API + web app that tags your content automatically.
fixspec
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fixspec is a supported, cloud-based FIX connectivity platform.
Infosit
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Infosit is a Digital Agency that transforms ideas into Digital Assets.
All Markets
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One-for-All Platform For Traders. Stocks, Crypto and FX. Data Consumable via API & Sheets Add-Ins.
Woodseer Global
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Woodseer Global is an advanced algorithmic system that gives huge coverage matched with high levels of accuracy.
