Developer Tools Startups

Applicature provides full-service blockchain development, consulting, auditing, and advisory services, covering smart contracts, DeFi, tokenomics, token launches, and regulatory compliance. It serves founders and blockchain projects, and also incubates and launches its own crypto ventures.

1 investor

Appy Pie (Appmakr) is a no-code, AI-powered app builder that turns plain-English or voice prompts into native iOS and Android apps, with 200+ feature modules and guided App Store and Google Play publishing. It serves non-technical founders and SMBs across industries such as eCommerce, education, churches, radio streaming, and logistics.

1 investor

Appmatics is a full-service quality assurance and software testing provider that tests apps, web applications, and IoT systems throughout the software development process. It offers manual testing, test automation, agile testing, accessibility testing (WCAG/BITV), user research, and QA consulting for companies building digital products.

1 investor

AppMySite is a no-code mobile app builder that converts websites, Shopify, WordPress, and WooCommerce stores into native Android and iPhone apps, or creates custom apps without a website. It also offers a white-label agency option for building branded apps for clients.

1 investor

Appnigma builds native managed apps for SaaS companies to list on the Salesforce AppExchange and HubSpot Marketplace, handling platform engineering, data sync, and security review without requiring in-house Salesforce expertise. It targets teams selling into enterprise that want to distribute their products through CRM marketplaces.

1 investor

Apposite Technologies develops network testing software, including its Netropy line for network emulation, traffic generation, and all-in-one security testing (CyberAttack). Its tools help organizations validate network, application, and security performance at scale up to 400G through a browser-based platform.

1 investor

Approxima provides AI agents that handle routine software development tasks including scoping work, writing code, validating fixes in isolated environments, and deploying to production, freeing developers to focus on novel work.

1 investor

Approximated provides an API and dashboard for connecting user custom domains to web applications, using dedicated clusters of globally distributed edge servers to proxy traffic and manage SSL certificates. It targets developers and SaaS teams, offering monitoring, self-healing clusters, a web application firewall, and DDoS protection, with both hosted and self-hosted options.

1 investor

Appsurify offers patented AI risk-based testing that identifies the areas of an application changed by each developer commit and runs only the tests relevant to those changes, reducing test run and CI build times. It targets QA and DevOps teams to optimize CI/CD pipelines, cut infrastructure costs, and detect and quarantine flaky tests.

1 investor

Appsvio builds Jira extensions and apps that support Jira Service Management and test management workflows for teams and organizations. It is an Atlassian ecosystem vendor, named Atlassian Partner of the Year for ITSM App Solutions in 2023, based in Poland.

1 investor

Apptest.ai provides an AI-powered test automation platform that runs mobile and desktop app tests on real devices without coding, using tools like Ptero (a test automation cloud) and Stego (no-code test scenario authoring). It targets QA and DevOps teams for automated mobile and cross-platform app testing.

1 investor

apptotech is a software development partner offering custom software development, web and mobile application development, DevOps, UI/UX design, QA, and software consulting services. It serves large enterprises, small and medium-sized businesses, and technology companies.

1 investor

Appvance offers AIQ, an AI-driven software testing platform that generates and executes tests across web, mobile, API, performance, and security layers, using its AISG Bug Hunter to autonomously explore applications and uncover defects. It targets enterprise QA teams seeking greater test coverage and reduced maintenance burden.

1 investor

Apryse provides an SDK and toolkit for building, viewing, editing, converting, and extracting data from documents across 100+ file formats, including PDF, Office, and CAD files. It serves developers and enterprises building document workflows and AI/automation pipelines, with support for web, server, and mobile environments.

1 investor

Apsalar develops a mobile marketing platform that handles app install attribution and audience segmentation. It collects data on how individual users behave within an app and turns that data into audience segments and reporting that marketing and product teams use to target campaigns and measure results.

1 investor

Apsy provides an AI-driven platform for building mobile and web applications without traditional coding, targeting entrepreneurs, developers, and designers. The platform uses proprietary AI-Driven App Building (ADAB) technology to automate app development from concept to deployment.

1 investor

AQ is a collaborative platform where engineers, product managers, and designers work together in real time using AI coding agents such as Claude Code and Codex, running within the customer's own cloud. It offers a free tier on a user-provided VM and a paid plan with a dedicated always-on VM per team.

1 investor

Aqua Voice is an AI-powered voice-to-text application that converts speech into refined text in real time for use across apps, from coding to writing and team communication. It serves developers, content creators, and professionals seeking faster typing alternatives with accuracy optimized for technical and natural language contexts.

1 investor

Aquarium built AI quality improvement technology for computer vision and natural language processing systems. The company has been acquired by Notion and is winding down its products.

1 investor

Ara is an autonomous coding agent that monitors development work, plans subsequent steps, and executes coding tasks using its own resources and memory to assist software teams in collaborative development.

1 investor

Arato provides a platform for testing and validating AI agents by simulating realistic multi-turn user conversations to surface issues such as hallucinations, accuracy problems, UX drift, tone, and compliance risks. It also offers observability and experimentation tools for teams building generative AI applications, connecting to existing AI systems via API and SDK.

1 investor

Archal provides isolated, time-bounded sandboxes containing stateful simulated environments that expose familiar REST and MCP endpoints, letting changes persist through a test run and then reset to a declared baseline. It is aimed at agent developers, connectors teams, and integration engineers who need to test agent workflows repeatedly without shared test accounts, rate limits, or dirty state.</parameter> <parameter name="founders">[]

1 investor

Arcimus sources and filters engineering candidates for technical hiring, using technical founder judgment instead of resume keywords or automated filters. The service helps companies define what great engineering looks like for their specific codebase and challenges, then identifies and introduces matching candidates.

1 investor

Arcten builds long-horizon autonomous agents for research and coding tasks. The company has roots in AI research at Caltech.

1 investor