Startups Directory

Safe Superintelligence (SSI) is an AI research lab founded by former OpenAI chief scientist Ilya Sutskever, dedicated to developing safe superintelligent AI through aligned engineering and scientific breakthroughs. The company operates with a singular focus on safety-first AI development, rejecting commercial product pressures to prioritize long-term alignment research. SSI has raised $3B from top-tier investors including Alphabet, Andreessen Horowitz, and Sequoia, and partners with Google Cloud for TPU infrastructure, positioning itself as a differentiated player in frontier AI research.

Anysphere develops Cursor, an AI-assisted code editor built as a fork of Visual Studio Code that integrates deep codebase understanding directly into the development workflow. The platform helps software developers automate repetitive coding tasks—boilerplate, refactors, consistency maintenance—by enabling natural-language prompts instead of line-by-line typing. Unlike ChatGPT-for-coding tools, Cursor's core strength is understanding entire codebases, modules, and cross-cutting dependencies. The company's technical approach of forking VS Code rather than building a plugin enables deeper AI integration with native Git and terminal access.

RebuilderAI is a generative 3D AI platform that converts photos, sketches, and text prompts into production-ready 3D manufacturing data. The company operates VRIN 3D for image-based 3D scanning and VRING:ON for end-to-end workflows spanning design, simulation, and manufacturing. Unlike consumer 3D tools, RebuilderAI specializes in creating domain-specific AI experts trained on real-world industrial data, delivering manufacturing-validated outputs for furniture, fashion, footwear, and consumer goods.

NinjaOne is a unified IT operations platform that consolidates endpoint management, patch management, backup, and remote access into a single console. It serves MSPs and enterprises struggling with endpoint sprawl—over 50% of employees use 4-5 devices daily, yet 90% of organizations can't actively monitor all endpoints. The platform automates IT tasks, improves security, and reduces operational costs through a lightweight agent that provides centralized visibility and control across Windows, Mac, Linux, and mobile devices.

Baseten is a serverless inference platform that converts machine learning models into production-ready APIs with auto-scaling GPU access across multiple cloud providers. It abstracts away infrastructure complexity—from GPU management and autoscaling to observability and billing—enabling ML teams to deploy and scale models without building custom infrastructure. The platform delivers up to 40% cost savings compared to in-house solutions and targets four to five nines of availability through model optimization and multi-cloud capacity management.

Quantinuum develops trapped-ion quantum computing hardware and software middleware for enterprise applications in cybersecurity, drug discovery, materials science, and financial modeling. The company operates Helios, the world's most accurate commercial quantum computer with 98 fully connected qubits and 99.9975% single-qubit gate fidelity. Its software products, including InQuanto for quantum chemistry simulations and TKET optimization toolkit, enable organizations to run production quantum applications on Quantinuum's hardware and other quantum platforms.

Beacon Software is a permanent holding company that acquires profitable, mission-critical software businesses serving Main Street sectors—education, finance, logistics, recreation—and modernizes them using AI and applied technology rather than cost-cutting. Founded by Nilam Ganenthiran (ex-President of Instacart) and Divya Gupta (ex-Sequoia partner), Beacon acquires roughly one company every two weeks and has expanded acquired companies' Rule of 40 by an average of 1,000 basis points within one year. Unlike private equity firms focused on 3-7 year exits, Beacon commits to permanent ownership, reinvestment in growth, and building net-new technology capabilities across its portfolio.

ScaleOps is an autonomous platform that continuously monitors and optimizes Kubernetes and AI infrastructure resources in real-time, dynamically adjusting CPU, memory, GPU, and replica counts based on live workload behavior. It eliminates manual configuration and operates with full context awareness to prevent performance issues and downtime that plague other automation tools. Customers typically achieve up to 80% cost reduction while improving performance and stability across their infrastructure.

Code Metal is an AI-powered development platform that automatically translates high-level research code (Python, Julia, MATLAB) into optimized, production-ready code for any hardware target (CPUs, GPUs, FPGAs). It uses formal methods to mathematically verify translation accuracy, ensuring compliance and correctness for mission-critical systems. The platform enables engineers to write once and deploy across multiple languages and hardware platforms while maintaining code safety guarantees that LLMs alone cannot provide.

Tessl is an AI-native software development platform that uses Spec-Driven Development to enable teams to write, test, and maintain code through natural language specifications. It prevents AI hallucinations and API errors by maintaining a registry of 10,000+ verified library specs, allowing developers to specify intent once and have the platform automatically maintain code alignment. Unlike traditional AI coding assistants that bolt automation onto existing workflows, Tessl reimagines development as spec-centric rather than code-centric.

Rescale is an enterprise cloud simulation platform that enables research scientists and engineers to run high-performance computing (HPC) workloads—including finite element analysis (FEA), computational fluid dynamics (CFD), and AI simulations—on their choice of cloud providers without infrastructure setup or maintenance. The platform automates hybrid cloud orchestration with built-in security, architectural controls, and financial governance. Engineers can configure complex engineering analyses for computation in minutes via a web browser, dramatically reducing time-to-market for product design cycles. Rescale serves 300+ customers including 7 of the top 10 automakers, 7 of the top 10 aerospace companies, and 3 of the top 6 life science companies.

Turing is a three-pronged AI platform founded in 2018 that works with frontier AI labs to advance LLM reasoning and coding capabilities, builds enterprise AI applications for Fortune 500 companies, and operates a talent cloud of 4M+ vetted software engineers and data scientists. The company powers its services through an AI-driven vetting and matching engine plus ALAN, a fine-tuning platform for model development. Turing has evolved from a remote engineering hiring marketplace into a critical infrastructure player in AGI advancement and enterprise AI deployment.

Karat operates the world's largest technical interviewing cloud platform, connecting companies with a vetted network of 24/7 interviewers to conduct fair, consistent technical screens at scale. Rather than burdening internal engineering teams with interview responsibilities, Karat handles candidate assessment using standardized rubrics, interview formats, and AI-enhanced evaluation. The platform serves enterprise and growth-stage tech companies looking to screen hundreds or thousands of engineering candidates annually while reducing hiring bias and improving candidate experience.

Builder.ai was a no-code AI-powered app development platform that claimed to automate software development from concept to launch. The platform positioned itself as a hybrid between DIY no-code tools and traditional development agencies, combining AI acceleration with human expertise. However, the company ceased operations in May 2025 after entering insolvency, with investigations revealing that most development work was performed by human engineers rather than AI, contradicting its core marketing narrative.