Developer Tools Startups

99x is a digital product engineering company that builds web platforms, mobile apps, e-commerce solutions, and business-critical systems, embedding AI and agentic workflows across the product lifecycle. It provides facilitated teams and nearshore engineering talent to clients across Scandinavia, Europe, and North America.

1 investor

A-Cube offers API-based tax compliance software that automates electronic invoicing, e-receipts, e-reporting, and e-archiving, integrating with ERP, e-commerce, and management systems. It serves software houses and businesses handling tax obligations in Italy and other international markets through composable, country-specific APIs.

1 investor

A platform where users create and share AI-powered tools, games, chatbots, and interactive experiences with others in their social network.

1 investor

A2 Labs builds Makora, an inference-stack platform that deploys specialized agents across orchestration and other layers to make model inference faster, cheaper, and more reliable without code changes. It targets developers running agentic coding workflows and offers access to open-source coding models such as Qwen, DeepSeek, GLM, and Kimi, plus dedicated/on-prem deployments and engineering engagements.

1 investor

a2sys develops an agent-native inference operating system that integrates AI, software, and hardware on memory-centric infrastructure, optimized for agentic workloads and LLM-based tool-calling at scale.

1 investor

Abbey provides automated access request and governance workflows for Terraform-managed infrastructure resources, letting engineering teams define reviewer-based approval flows and policies (such as SOC2 compliance and auto-revocation) as code. It integrates with tools like Snowflake and GitHub to manage access grants for technical and DevOps teams.

1 investor

Abbot is a Slack bot that monitors customer conversations to ensure timely responses, automatically summarizes discussions, identifies relevant topics, and recommends follow-up actions for customer support teams. It also provides team responsiveness metrics and allows users to trigger automated workflows based on customer inquiries, schedules, or external events.

1 investor

Ability.ai is an applied AI lab that builds Trinity, an open-source (Apache 2.0) agent runtime, and Cornelius, a self-improving cognitive core, so organizations can run governed, audited AI agent fleets inside their own infrastructure. It offers the platform as self-hosted open source, a managed build-and-run service, and a partner program, automating processes like outbound, support, content, recruiting, research, and back-office work for enterprise teams.

1 investor

Able is a consulting firm that applies AI and agentic AI tooling to software development teams, optimizing the software development lifecycle (SDLC) through change management and hands-on implementation. It offers an Applied AI Lab to help engineering organizations adopt AI for tasks such as code creation, testing, code reviews, and environment setup.

1 investor

Abstract is a design intelligence platform that gives design teams one space to gather requirements, track and assign work, review designs, handle feedback, and measure design outcomes. Launched in 2017 as a version control tool for design files, it now serves design teams at companies of various sizes and industries.

1 investor

Abstraction builds a code comprehension layer that compiles source code into a universal semantic model to generate auto-validated wikis, process graphs, system maps, and semantic PR reviews. It targets software development teams and AI coding agents, integrating with tools like Claude Code, Codex, Slack, and Linear via MCP.

1 investor

ACCELQ provides a no-code test automation platform for continuous testing across web, mobile, API, desktop, cloud, and packaged applications. It targets QA teams, automation engineers, product owners, and QA managers, offering unified quality lifecycle management from test design through change management.

1 investor

Access Mode is an organization providing mentoring and support services to Black, Latino, Asian American and Pacific Islander, and Indigenous technology founders to remove barriers to startup success.

1 investor

WAH Pro is a WordPress plugin that adds accessibility features and profiles to websites, letting site owners apply accessibility settings and customize a widget from an admin panel. It runs independently without external servers and targets WordPress site owners seeking to meet accessibility standards.

1 investor

Accessible Web offers RAMP, a platform for scanning and monitoring websites against WCAG accessibility standards, along with professional services such as manual audits, remediation support, and assistive technology testing. It also provides online accessibility courses and compliance playbooks for regulations like the ADA, Section 508, EAA, AODA, and ACA, serving organizations from startups to enterprises.

1 investor

Achievego provides human-in-the-loop evaluation for voice agents and LLM-based systems by pairing automated scores with calibrated human review to identify failure gaps and root causes in production interactions. The service helps AI teams close the gap between benchmark performance and real-world outcomes with auditable evaluation processes built into release cycles.

1 investor

Acho provides a platform that helps companies build data-driven applications and workflows without in-house developers. It positions itself as a turnkey solution for lean teams and startups.

1 investor

Ackee is a blockchain security firm that performs smart contract audits and builds open-source security and developer tooling for Solana, Ethereum, and EVM-based projects. It also runs blockchain security education programs, offering Rust and Solana development courses as an educational partner of the Solana Foundation.

1 investor

Acquire.io provides a customer service platform with a workflow engine, omni-channel communication (chat, SMS, email, live video), and customizable API integrations. It helps support agents prioritize, route, and resolve customer issues while maintaining unified conversation history and customer context.

1 investor

Acrely builds custom enterprise voice agents for customer service, sales, and operations use cases. The company offers both cloud and on-premises deployment options for organizations implementing AI-powered voice solutions.

1 investor

acreom is an open-source personal knowledge management system for developers that integrates notes, tasks, and project tracking with external tools like Jira, GitHub, and Linear. It emphasizes speed, privacy, and offline-first functionality through local markdown files with end-to-end encryption.

1 investor

Acrylic operates a music licensing platform that connects sports organizations with a catalog of licensed tracks from emerging and established artists for use in social media content. It uses AI to recommend music based on content mood, fanbase location, and performance data, and handles rights clearance so clubs can publish without copyright risk while artists earn licensing revenue.

1 investor

Actionable AI offers a platform for embedding adaptive, context-aware voice assistants into applications, using self-coding AI that integrates with a company's APIs and interprets user commands. It provides SDKs, a visual workflow builder, multi-LLM support, and deployment options including SaaS, VPC, and air-gapped environments for developers and enterprises across sectors such as government, healthcare, energy, education, e-commerce, and transportation.

1 investor

Activepieces is a no-code workflow automation platform that enables teams to connect apps, APIs, and webhooks to automate business processes across finance, marketing, sales, operations, and other functions. The platform offers AI-powered agents, enterprise integrations, role-based access control, and flexible deployment options for organizations of all sizes.

1 investor