Developer Tools Startups

OTOY develops 3D rendering software and cloud rendering services for creative professionals, including OctaneStudio+ and tools for visual effects workflows.

2 investors

OtterTune was a database tuning service, originally a start-up spun out of Carnegie Mellon University. The company is no longer operating.

2 investors

Outerbounds builds a full-stack platform for machine learning and data science, comprising the open-source Metaflow framework and enterprise-grade infrastructure to help data scientists and engineers design, develop, and deploy ML and data science applications. The platform serves data scientists and engineers who work on data-intensive projects across organizations of all sizes.

2 investors

OverAI provides a platform with prebuilt modules and customizable components for building production-ready business applications and automations. It serves enterprises seeking to build internal tools faster without sacrificing structure, observability, and governance.

2 investors

Overleaf offers AI-powered writing and research tools integrated into its LaTeX editing platform, including table and equation generators, error assistance, and language editing features trained on academic papers. The service is designed for researchers and students to write academic documents faster and with greater confidence.

2 investors

Overmind is an AI lab that lets engineering teams train and fine-tune smaller task-specific models for agent workflows such as labeling emails and calling APIs, then benchmark them against existing models. It offers air-gapped and on-premise deployment, keeps proprietary data out of public model training, and provides validation harnesses to test outputs before deployment.

2 investors

Oxels provides a way to embed a company's contracts into AI coding tools such as Cursor, Claude, and Codex.

2 investors

Paligo is a cloud-based content management system (CCMS) that helps technical writers create, manage, and publish documentation at scale using single-source content strategy. The platform serves technical documentation teams across enterprises seeking faster content creation, consistency, and multi-format publishing capabilities.

2 investors

Palosade builds AI agents that work alongside enterprise security teams, integrating into existing workflows with embedded business context to help automate security programs and meet regulatory and customer security requirements. The company targets businesses adopting AI while managing cybersecurity and compliance demands.

2 investors

Panaya provides change intelligence solutions that assess the impact and reduce risk of modifications to enterprise business applications including SAP, Oracle EBS, and Salesforce. The platform serves enterprises managing application upgrades, migrations, and new functionality deployments.

2 investors

Paradev is a source-available IDE and orchestration layer for running many CLI-based coding agents (such as Claude Code, Codex, and OpenCode) in parallel, with each task isolated in its own Git worktree and branch. It targets software developers, offering a desktop app, CLI, TypeScript SDK, MCP server, and iPhone/iPad app for monitoring, reviewing, and merging agent work.

2 investors

Parallux is a Brooklyn-based immersive experience studio building AR, mixed reality and virtual production technology.

2 investors

Paramify provides software for generating audit-ready security documentation and continuously monitoring compliance with half the cost and 90% faster execution. The platform serves organizations managing FedRAMP compliance and enterprise risk management through integrations with existing tools like Jira and ServiceNow.

2 investors

Passport provides a cloud-based, API-driven infrastructure with a microservices architecture that lets financial institutions launch new financial services quickly in partnership with fintechs. It also offers a developer portal and sandbox, and aims to broaden access to financial services.

2 investors

Pathmind applies deep reinforcement learning to simulations and digital twins to help industrial engineers and simulation modelers improve performance in industrial operations, supply chains, and mining. It generates and deploys decision-making policies into operations.

2 investors

Paycrest is a payment routing protocol that unifies fiat and stablecoin payments, offering onramp and offramp via a single Sender API and on-chain Gateway smart contracts, with automatic routing across a network of liquidity providers. It serves wallets, fintechs, payroll platforms, exchanges, and DeFi protocols, with coverage focused on Africa and cross-border corridors.

2 investors

Payfactory offers an embedded payment facilitation platform with RESTful APIs that let software companies add PCI-compliant payment processing, covering merchant onboarding, transacting, and payouts. It targets ISVs, SaaS providers, and independent merchants, and includes encryption, tokenization, and fraud monitoring along with a revenue-sharing program.

2 investors

Payloop provides real-time visibility into LLM costs, tracking spending by task, agent, and customer so companies can identify which features and users are profitable and choose pricing models. It also includes Sentinel, a feature that blocks off-topic prompts, prompt injection, and jailbreak attempts, and integrates with a single line of code.

2 investors

PeerDB provides fast and cost-effective data replication from PostgreSQL to data warehouses including Snowflake, BigQuery, and ClickHouse, as well as to event queues like Kafka and EventHubs. The open-source tool and commercial cloud service enable change data capture and parallel data migration for engineering and data teams.

2 investors

A design consultancy that creates Webflow templates and design systems for brands seeking timeless, structurally-sound digital presence.

2 investors

Penpot is a web-based, open-source design tool aimed at improving collaboration between designers and developers through open standards. It is developed by the company Kaleidos and is built around an open-source design community.

2 investors

Pensar provides continuous adversarial security testing in which offensive AI agents map a system's attack surface, prove vulnerabilities with working exploits, and ship patch pull requests, integrating into CI/CD pipelines. It also offers OSCP-certified, US-based pentesters who audit findings and deliver formal pentest reports for engineering and security teams.

2 investors

Pensero is a platform that provides engineering leaders with visibility into software delivery performance, code quality, and AI usage efficiency across their teams. It integrates with development tools to measure engineering productivity and impact, enabling data-driven management decisions.

2 investors

Perceptron builds custom AI systems for law firms, trained on the firm's own matters and deployed within the firm's own infrastructure. Its systems handle intake, discovery, document review, drafting, and legal research, grounded in primary law and verified sources with checkable citations.

2 investors