Developer Tools Startups

ShortLoop is a business development center platform that automates and manages customer outreach and appointment scheduling for automotive dealerships. The product helps dealership operators improve operational efficiency and control across multiple locations.

1 investor

ShouldBee is a hosted (ASP) automated testing service for web services and web applications, letting QA engineers and testing teams write test scripts in simple Japanese without building a test environment or learning complex scripting. It targets development companies and quality assurance departments in Japan and does not access the customer's source code.

1 investor

Showwcase is a professional network for developers that enables them to showcase their skills, connect with a global tech community, and access job opportunities. The platform serves both individual developers and companies seeking to recruit technical talent, with a focus on connecting pre-vetted developers with employment opportunities.

1 investor

Shyft provides low-latency Solana blockchain infrastructure, including RPC nodes and real-time transaction streaming via gRPC and its RabbitStream service that detects unconfirmed transactions from Solana shreds. It targets blockchain developers building on Solana, offering multi-region failover nodes across the US, Europe, and Asia.

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

Sigao Studios is a senior-led software consulting firm that embeds with mid-size SaaS companies' engineering teams to ship roadmap work using AI and rebuild their delivery processes so velocity gains persist after the engagement. It serves CTOs and VPs of Engineering at privately held or PE-owned SaaS companies with roughly 50 to 300 engineers across the US.

1 investor

Sigma provides automation software for IT teams to orchestrate patching, remediation, and operational workflows across hybrid infrastructure without requiring scripts or DevOps expertise. The platform is designed for enterprise IT environments where uptime, auditability, and controlled change are critical requirements.

1 investor

CloudControl is a device management and monitoring platform that provides centralized control over 50+ digital signage hardware platforms through a unified dashboard. It serves businesses operating networks of display screens, offering real-time monitoring, remote configuration, automation, and proof-of-play capabilities.

1 investor

Silktide develops website testing and monitoring software that analyzes quality, accessibility, performance, and marketing metrics. The platform serves web agencies and enterprises seeking to audit and improve their websites across multiple technical and user experience dimensions.

1 investor

SiLogy provides Viv, an AI verification engineer that autonomously debugs failing tests for chip developers by analyzing code, log files, and waveforms. The platform operates fully on-premise with optional bring-your-own-key LLM access, serving semiconductor design and verification teams.

1 investor

Silverstripe is a New Zealand technology company that builds websites and digital platforms, including projects such as the Government's COVID-19 response sites, the 2023 Census, and Tourism New Zealand. It serves government and organisational clients across Aotearoa New Zealand.

1 investor

SimicX operates an agentic research infrastructure platform that ingests global financial research, extracts tradeable hypotheses, and delivers audit-ready alpha candidates to hedge funds and asset managers. The platform autonomously identifies, validates, and backtests quantitative trading strategies across equities, FX, crypto, commodities, and macro markets.

1 investor

Simless develops a connectivity platform that lets devices select and switch between cellular networks without swapping physical SIM cards. Its customers include mobile operators, device manufacturers, and end subscribers seeking more flexible network access.

1 investor

Simnovus develops simulation and emulation tools for validating 5G radio access networks, serving telecommunications and network operators through software-based testing platforms.

1 investor

SimpleDirect is an independent AI lab that develops open-weight language models (8B, 30B, and 123B) released under the Vinci brand, along with developer tools and research on AI model behaviour and evaluation reliability. It serves developers and organizations looking to run models locally and study AI evaluation methods.

1 investor

Simulithic runs AI agent simulations that model real user cohorts—built from a product's last 90 days of session data—to predict how experiments and product variants will perform before shipping to real users. It integrates with session tools like Clarity and PostHog and returns predicted metrics such as lift, confidence intervals, churn, and activation for product and growth teams.

1 investor

Sindarin provides a platform and API for building voice AI interfaces, letting developers configure conversational "Personas" via a web platform or in code. The product focuses on low-latency, natural conversational voice models for real-time speech interactions.

1 investor

Sipfront is a SaaS platform for testing and monitoring voice and WebRTC services, covering synthetic-call monitoring, functional regression, load/stress testing, browser/mobile app readiness, and AI voicebot validation. It serves voice/telephony engineering and QA teams, with EU-hosted infrastructure and audit evidence for EU AI Act and GDPR compliance.

1 investor

Sistema THEAD is a non-profit educational cooperative based in Barcelona that develops inclusive digital learning solutions and trains teachers to ensure equitable access to technology and STEM education. The organization focuses on reducing the digital divide for vulnerable student populations through accessible educational tools and sustainable development integration.

1 investor

Sitech is a software development company that provides digital product discovery, design, and development services, along with custom software solutions, for enterprises worldwide. It offers multi-platform product delivery through engagement models ranging from full-scale development to team augmentation.

1 investor

Software company focused on building better technology to create positive impact in the world, with offices in San Francisco and Ho Chi Minh City.

1 investor

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

SitScape provides a no-code digital enterprise platform that helps Fortune 500 and government customers automate business processes and optimize digital operations without requiring programming expertise. The web-based software enables business users to visualize data, collaborate, and make data-driven decisions rapidly across complex digital modernization initiatives.

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