Developer Tools Startups

2 investors

Termina provides modular infrastructure for Solana developers, offering execution, proofs, and data capabilities that let applications operate off-chain while finalizing on Solana L1. It supports batching transactions, anchoring proofs, and replaying and simulating transactions with mainnet-equivalent ordering, state, fees, and compute limits to test custom logic and assess risks such as liquidations and MEV exposure.

2 investors

Testmunk provides remote access to a cloud-based collection of physical Android and iOS devices for mobile app testing across different operating system versions and device types. The service allows developers to test native and hybrid applications without purchasing hardware.

2 investors

TestParty is an automated accessibility platform that scans and fixes source code to make websites, eCommerce sites, and media assets compliant with accessibility regulations like WCAG and ADA. It integrates with IDEs, CI/CD pipelines, and content management systems, and supplements automated remediation with a certified manual auditing team for businesses seeking digital accessibility compliance.

2 investors

Tetrate builds AI governance and routing infrastructure for enterprises, including a service that routes queries to models based on cost, performance, and policy, and a director product for centralized governance and visibility across teams and providers. Built on the open-source Envoy and Envoy AI Gateway projects, it targets organizations in finance, government, and global tech adopting AI in production.

2 investors

Text Blaze is a productivity tool that creates text snippets and templates to reduce repetitive typing across web applications. It works as a Chrome extension, macOS app, or Windows app and integrates with Gmail, Google Docs, LinkedIn, Salesforce, and other platforms.

2 investors

Dia is a browser designed for work productivity that integrates with tools like Slack, Notion, Google Workspace, and GitHub to provide unified context, automated meeting preparation, and contextual search capabilities. It serves knowledge workers and teams seeking to streamline workflows across fragmented work applications.

2 investors

Themis AI develops Capsa, a technology that quantifies machine learning model uncertainty and flags unreliable outputs to support AI quality assurance and compliance. It integrates with existing ML models via PyTorch and TensorFlow wrappers to make model predictions uncertainty-aware.

2 investors

ThinkChain.ai builds AI tools including AI agents that conduct qualitative interviews and surveys at scale for market researchers and academic professionals, and cloud-hosted MCP server bundles that connect AI assistants like ChatGPT and Claude to external tools. Its offerings target researchers, students, professionals, and developers seeking AI automation without technical setup.

2 investors

Thread provides an AI-powered service desk for managed service providers (MSPs), using AI agents to handle client calls, chat, and email, automatically create and triage tickets, and capture knowledge from resolutions. It offers native integrations with PSA and documentation platforms to give technicians instant client context, history, and suggested fixes.

2 investors

Thunder Compute develops GPU virtualization software that improves utilization of graphics processing units in data centers. The company targets cloud providers and enterprises seeking to increase computational capacity without additional hardware investment.

2 investors

Thunders provides AI agents that generate, run, and maintain software test suites from plain-language descriptions, removing the need for manual scripting and selector maintenance. The platform covers functional testing along with SEO analysis, accessibility (WCAG/RGAA) checks, and security scanning, and integrates with CI/CD pipelines, issue trackers, and test infrastructure.

2 investors

Provides SonarQube-based code quality and security analysis across 35+ programming languages, covering first-party, AI-generated, and open source code including mobile applications. Includes software supply chain security features for managing open-source risks, detecting malicious dependencies, and generating SBOMs.

2 investors

TierZero is an AI production agent platform that automatically investigates incidents, triages alerts, answers internal engineering questions, fixes CI/CD failures, and executes remediation within a customer's existing observability stack and Slack. It serves engineering teams, including those in regulated industries such as fintech, healthcare, and crypto, to reduce operational load and mean time to resolution.

2 investors

Tilt is an open-source developer toolkit for microservice development that provides smart rebuilds, live updates, and automated workflows across local and Kubernetes environments. It gives engineering teams a continuous feedback loop with logs, build status, and runtime errors, along with shared dev environments and reproducible setups.

2 investors

Tinfoil develops secure hardware and systems, with expertise in privacy and security protocols.

2 investors

tldraw provides an SDK for building canvas-based applications like whiteboards, diagrams, and collaborative tools in React. The platform offers enterprise-grade multiplayer synchronization, persistence, and performance optimization for web developers.

2 investors

ToDesktop is an end-to-end platform for building, deploying, securing, and updating Electron desktop applications across Windows, Mac, and Linux. The service handles infrastructure including code signing, automated updates, security analysis, smoke testing, and analytics.

2 investors

ToffeeX provides cloud-native generative design software that optimizes mechanical components for cooling, manufacturing, and performance using physics-driven algorithms. The platform serves industrial manufacturers by enabling rapid design optimization across additive manufacturing, machining, stamping, and chemical etching processes.

2 investors

Together AI provides infrastructure for building real-time voice agents, combining speech-to-text, LLM, and text-to-speech models on co-located GPU infrastructure for low-latency conversations. It offers access to multiple voice models (such as MiniMax, Rime, Deepgram, OpenAI, and Cartesia) through a single API, aimed at developers deploying production-scale voice applications.

2 investors

Tonk builds a portable data layer and memory primitives for shared, structured knowledge that people and their software tools can query and reason over together. Its releases include "carry," a persistent memory layer for structured, queryable data.

2 investors

Tonkean builds enterprise software that automates workflow coordination and reduces manual data entry across multiple applications. The platform helps businesses optimize operations by enabling employees to focus on higher-value work rather than administrative tasks.

2 investors

ToolJet is a low-code platform for building, deploying, and standardizing internal data apps, CRUD applications, and business tools, with an AI Builder and on-premise deployment options. It targets development and operations teams building internal enterprise applications, and offers forward-deployed engineers to embed with customer teams.

2 investors

TopK is a search platform that vertically integrates retrieval, inference, and document processing to run search over structured and unstructured data, built on object storage for lower cost and scale. It supports hybrid search, multi-vector retrieval, custom scoring, and File Search for grounding AI agents in private documents, with SDKs for Python, JavaScript, Rust, and a SQL/Postgres wire protocol interface.

2 investors