Developer Tools Startups

Sitio provides tools for managing website digital assets, including inventory tracking for URLs, pages, documents, and images to help organizations maintain organized and current web content.

1 investor

SIXTA is an autonomous database reliability engineer (DBRE) for PostgreSQL and MySQL that investigates database incidents, identifies root causes, and recommends or applies fixes within a team's incident and change workflows. It serves SRE, DBA, and database operations teams, integrating with tools like Slack to cut mean time to resolution.

1 investor

Sixty operates a marketplace connecting users with technical experts for short-duration screenshare sessions to assist with web design, development, and software implementation tasks, billed per minute.

1 investor

Sizeless provides an AI-powered mobile workflow for capturing construction trenches and utility connections with 3D precision. The software converts smartphone video scans into CAD-ready plans and GIS models for deep construction, district heating, and utility connection projects.

1 investor

Skaffolder is a code generation platform that helps developers scaffold and build web applications faster, offering tools such as a CLI and a VSCode extension along with an enterprise offering. It provides a marketplace and open-source components for automating application boilerplate creation.

1 investor

Skene builds a tool that protects the event-tracking and data collection layer for B2B SaaS companies, catching broken tracking on each release and recommending funnel improvements. It serves growth, revenue operations, and customer success teams that own activation measurement and funnel reporting.

1 investor

A platform that centralizes agent sessions across different AI agents, enabling users to share sessions via URL and extract successful workflows into reusable skills. It works with Claude Code, Hermes, and any agent that maintains a transcript.

1 investor

A provider of content management and remote device management software for digital signage networks, enabling organizations to organize, schedule, and monitor displays across multiple locations.

1 investor

Skry is a US company that builds a blockchain analytics platform for aggregating and interpreting on-chain data pulled from multiple sources. It applies machine learning to surface patterns and risk signals, and exposes the results through APIs and visualization tools. The intended users are enterprises that need intelligence and risk assessment on blockchains and decentralized applications.

1 investor

Sky Valley is building infrastructure that lets software adapt to users after it ships, with its first product called Differ. The company operates in the AI-driven software tooling space.

1 investor

Etteplan is a technology service company that helps industrial businesses improve operational efficiency, sustainability, and productivity through expertise, solutions, and managed services. The company works across industries supporting customers navigating AI-driven technological changes and evolving business demands.

1 investor

Skyvern automates browser-based workflows using AI and computer vision, handling tasks like logging into portals, filling forms, and extracting data without APIs or custom scripts. It serves enterprise teams and developers automating repetitive portal interactions, data extraction, and compliance processes across industries.

1 investor

Slam Media Lab is a design agency that provides product and UX/UI design services, including user research, wireframing, prototyping, and usability testing for web applications, SaaS products, and digital platforms. The firm serves startups, nonprofits, health organizations, and enterprise clients across multiple sectors.

1 investor

Slapdash builds a command bar interface that aggregates cloud applications and provides low-latency file-system access to accelerate workflows for knowledge workers.

1 investor

Slauth.io is a tool that automatically generates and optimizes identity and access management (IAM) policies, surfacing recommendations through pull requests and integrating with infrastructure-as-code tools like Terraform to streamline policy creation and deployment. The service targets DevOps and engineering teams seeking to reduce manual policy configuration work while maintaining security standards.

1 investor

Slider builds a frontend development environment and AI agent that ingest enterprise context — a company's frontend stack, platform docs, and design rules — to let stakeholders prototype and iterate on frontend code within a governed, multiplayer sandbox. It targets large enterprises with complex codebases and design standards, offering a guardrail system and custom compilers that generate optimized code packages for a company's production systems.

1 investor

Smallstep provides a Device Identity Platform that secures access for humans, devices, workloads, AI agents, and MCP-based toolchains using hardware-backed, short-lived certificates and mTLS instead of static API keys. It co-developed the ACME Device Attestation standard and targets enterprise security and DevSecOps teams implementing Zero Trust for devices.

1 investor

Smartcuts is a Chrome extension that automatically converts user actions like clicks and typing into replayable automations. The tool targets users who want to automate repetitive browser tasks.

1 investor

SmartDust provides cloud-based remote access to physical mobile devices (iOS and Android) for testing and development, available in free, premium, and private deployment tiers. The platform serves developers, QA engineers, and teams building mobile applications who need on-demand access to device farms without managing hardware infrastructure.

1 investor

Smaxfusion is an AI-powered platform that generates websites and code from user descriptions, enabling non-technical users to build web projects without coding knowledge. The platform targets creators and businesses seeking to quickly transform ideas into functional websites.

1 investor

Smithery builds infrastructure that enables AI agents to interact with and control external tools and systems through API integrations rather than traditional interface clicks. The company provides the underlying platform for agents to execute actions and access services across the internet.

1 investor

SMOK Ventures is a pre-seed and seed stage venture fund based in the US and Poland that invests in technical founders from Central and Eastern Europe building for global markets, with a focus on developer tools and industry-specific AI agents.

1 investor

Smol Machines provides a runtime system for executing workloads in hardware-isolated Linux VMs with an open-source engine, supporting development workflows, code sandboxing, and portable executable packaging. It targets developers and organizations needing secure isolation and portability of applications across different environments.

1 investor

Smooth is a serverless browser agent API that autonomously performs web tasks like scraping, testing, and workflow automation. It delivers enterprise-grade reliability, performance, and security for developers integrating automation at scale.

1 investor