company name description stage careers
AssemblyAI Scalable, production-ready AI models to transcribe and under... private (series B) jobs page
Twilio APIs for communications. public (NYSE: TWLO) jobs page
Stream Stream makes it easy to add chat and messaging to applicatio... private (series B) jobs page
Taloflow Software buying recommendations. private (seed) jobs page
Herald APIs for commercial insurance. private (seed) jobs page
Moesif API analytics. private (series A) jobs page
Replicated Kubernetes application deployments. private (series C) jobs page
Detectify Security vulnerability scanning, surface monitoring and whit... private (series B) jobs page
Clarifai Machine learning API to transform unstructured data into str... private (series C) jobs page
Esper Android device fleet management platform. private (series C) jobs page
Sentry Error tracking, monitoring and observability based on open s... private (series E) jobs page
MongoDB Distributed document database, which is open source and can ... public (NASDAQ: MDB) jobs page
Cockroach Labs Distributed SQL database. private (series F) jobs page
DigitalOcean Cloud computing services and infrastructure. public (NYSE: DOCN) jobs page
Unity Technologies Game creation engine and platform. public (NYSE: U) jobs page
LaunchDarkly Feature flags and deployment management. private (series D) jobs page
Supabase Open source Firebase alternative. Backend infrastructure. private (series B) jobs page
SuperTokens Open source user authentication. private (pre-seed) jobs page
Airbyte Open source data integration and pipeline. private (series B) jobs page
Select Star Data discovery platform. private (series A) jobs page
Snyk Security analysis and vulnerability mitigation for software ... private (series F) jobs page
Heap Digital analytics. private (series D) jobs page
Agora Developer platform for voice, video, messaging and streaming... public (NASDAQ: API) jobs page
Mixpanel Self-serve product analytics. private (series C) jobs page
Datadog Application monitoring, security and observability. public (NASDAQ: DDOG) jobs page
Cloudflare Content delivery network plus web application security. public (NYSE: NET) jobs page
Symbl.ai Conversation intelligence from voice or applications for dev... private (series A) jobs page
Fivetran Data extraction, loading and transformation pipelines. private (series D) jobs page
Rollbar Error monitoring and remediation. private (series B) jobs page
Miradore Cloud-based Mobile Device Management (MDM) platform for Andr... private (private equity) jobs page
Bandwidth Communications platform-as-a-service. public (NASDAQ: BAND) jobs page
Stripe Payment processing platform. private (series H) jobs page
InfluxData Creators of time series database InfluxDB. private (series E) jobs page
HashiCorp Open source cloud infrastructure for deployment and security... public (NASDAQ: HCP) jobs page
PagerDuty Software and platform for digital operations and incident ma... public (NYSE: PD) jobs page
Deepgram Low quality transcription API. private (series B) jobs page
MessageBird Communications platform-as-a-service (PaaS). private (series C) jobs page
Rapid Developer platform for discovering and using thousands of AP... private (series D) jobs page
Timescale Open source time-series database and hosting service. private (series C) jobs page
Postman API platform for building and using APIs. private (series D) jobs page
Elastic Open source search solutions company. Creators of Elasticsea... public (NYSE: ESTC) jobs page
Buildkite Continuous integration pipeline platform. private (series A) jobs page
Split Feature flags and related experiments for software. private (series D) jobs page
Pngme Financial data sharing and analysis. private (series A) jobs page
Stacker Low code/no code custom software. private (series A) jobs page
Nylas APIs for email, calendar and contacts providers. private (series C) jobs page
Roboflow Computer vision as-a-service. private (series A) jobs page
Svix Webhooks as a service. private (seed) jobs page
Klaviyo Customer data and marketing automation platform. private (series D) jobs page
Modern Treasury Payment operations solutions for automating money movement. private (series C) jobs page
Netlify Developer platform to build, deploy and host web app front-e... private (series D) jobs page
Merge One API to integrate with all HR, payroll, recruiting, accou... private (series A) jobs page
PlanetScale MySQL-compatible serverless database platform. private (series C) jobs page
Logz.io Cloud observability platform. private (series E) jobs page
Gremlin Enterprise chaos engineering platform. private (series B) jobs page
Tinybird Developer tools for building data products over analytical d... private (series A) jobs page
Carto Spatial data analysis platform. private (series C) jobs page
Lokalise Continuous language translation for websites, mobile apps an... private (series B) jobs page
Superb AI Automated training data platform. private (series A) jobs page
Stoplight Web API design and documentation. private (series A) jobs page
Checkr Background checks and personal data lookup infrastructure. private (series E) jobs page
LogRocket Performance monitoring, session playback and product analyti... private (series B) jobs page
Arize Machine learning model observability. private (series A) jobs page
Spacelift Infrastructure-as-code management system. private (series B) jobs page
Vercel Frontend development and deployment platform. private (series D) jobs page
Gatsby React-based website and web app infrastructure. private (acquired) jobs page
Sourcegraph Source code search. private (series D) jobs page
Sleuth Continuous delivery metrics and control software. private (series A) jobs page
Metabase Open source analytics for company data. private (series B) jobs page
Humanitec Self-service internal developer infrastructure. private (seed) jobs page
Preset Data analysis and visualization based on Apache Superset. private (series B) jobs page
Airplane Developer platform for internal tools. private (series B) jobs page
Comet Machine learning model lifecycle management and monitoring. private (series B) jobs page
StackHawk Application security testing. private (series B) jobs page
testRigor Functional user interface regression and exploratory testing... private (seed) jobs page
Archera Cloud cost control. private (series A) jobs page
BrowserStack App and browser device simulation testing. private (series B) jobs page
QuestDB Open source time series database. private (series A) jobs page
Propelo Developer productivity metrics. private (series A) jobs page
PubNub In-app chat and communications. private (series E) jobs page
Aiven Managed open source cloud data platform. private (series D) jobs page
Socket Open source supply chain vulnerability scanning. private (series A) jobs page
Komodor Kubernetes monitoring and troubleshooting. private (series B) jobs page
Circle Payments infrastructure via blockchain. private (private equity) jobs page
Imply Database for analytics applications with Druid. private (series D) jobs page
Tailscale Zero configuration VPN. private (series B) jobs page
Apollo GraphQL platform. private (series D) jobs page
dbt Data transformation. private (series D) jobs page
Pipedream Easier multi-API connection with code. private (series A) jobs page
Koyeb Quick deploy serverless platform. private (pre-seed) jobs page
Cohere Natural language processing as a service. private (series B) jobs page
Mergify Faster and safer code merging for developers. private (pre-seed) jobs page
WorkOS Enterprise features as a service. private (series B) jobs page
Algolia Search API as a service. private (series D) jobs page
Code Ocean Computational research platform. private (series B) jobs page
Platform.sh Platform-as-a-service. private (series D) jobs page
Ethyca Privacy as a service. private (series A) jobs page
Unleash Feature flags as a service. private (series A) jobs page
Intercom Customer communications platform. private (series D) jobs page
Bodo Parallel computation for data analytics. private (series A) jobs page
Datafold Data observability and quality issue mitigation. private (series A) jobs page
Gretel.ai Synthetic data creation. private (series B) jobs page
Snowplow Data creation and common schemas. private (series B) jobs page
GitGuardian Code security. private (series B) jobs page
Bump API creation tools. private (pre-seed) jobs page
Stashpad Organized notepad for developers. private (pre-seed) jobs page
Retool Reusable components for internal enterprise web apps. private (series C) jobs page
Doppler Secret environment variables syncing and security. private (series A) jobs page
Speechmatics Speech-to-text APIs. private (series B) jobs page
Daily WebRTC-based APIs for video and audio application developmen... private (series B) jobs page
Plaid APIs for financial transactions. private (series D) jobs page
Bubble Low code / no code application builder. private (series A) jobs page
100ms Video conferencing and live streaming APIs. private (series A) jobs page
Lacework Code and cloud infrastructure security. private (series D) jobs page
Palantir Software for competitive advantage through data. public (NYSE: PLTR) jobs page
Veza Authorization platform for data. private (series C) jobs page
Courier Developer infrastructure for product notifications. private (series B) jobs page
CoreWeave GPU cloud provider. private (private equity) jobs page
Ngrok API-first ingress-as-a-service localhost tunneling. private (series A) jobs page
Ably Realtime application infrastructure. private (series B) jobs page
Kolide IT device security and compliance. private (series B) jobs page
Hookdeck Reliable webhook infrastructure. private (seed) jobs page
Clearbit Go-to-market intelligence data and APIs. private (series A) jobs page
Starburst Data source connection and querying. private (series D) jobs page
PopSQL Collaborative SQL editor for teams. private (series A) jobs page
Fly.io Edge-based application infrasturcture. private (series C) jobs page
Grafana Labs Operational dashboards for data. private (series D) jobs page
FusionAuth Authentication and authorization service. private (series A) jobs page
Render Cloud infrastructure. private (series A) jobs page
Octopus Deploy Deployment automation and metrics. private (series A) jobs page
Lightlytics Cloud infrastructure modeling and tracking. private (series A) jobs page
JFrog DevOps deployment tools. public (NASDAQ: FROG) jobs page
Sauce Labs Automated, continuous software testing. private (private equity) jobs page
LambdaTest Cross-browser testing. private (series C) jobs page
SingleStore Distributed database with SQL queries. private (series F) jobs page
Replit Collaborative coding and application hosting. private (series C) jobs page
Chameleon In-product walkthroughs and analytics. private (series A) jobs page
Confluent Apache Kafka hosting and tooling. public (NASDAQ: CFLT) jobs page
Swimm Documentation creation tools. private (series A) jobs page
Rescale Computing infrastructure for engineering and R&D. private (series C) jobs page
Couchbase Distributed NoSQL data store. private (series G) jobs page
Neo4j Graph database. private (series F) jobs page
TigerGraph Graph database. private (series C) jobs page
ChaosSearch Data indexing for input into analytics. private (series B) jobs page
GitLab Software development platform for teams. public (NASDAQ: GTLB) jobs page
Harness Software development platform for teams. private (series D) jobs page
Crowdstrike Cybersecurity products. public (NASDAQ: CRWD) jobs page
Dynatrace Infrastructure monitoring and security. public (NYSE: DT) jobs page
ClickHouse Column-oriented datastore. private (series B) jobs page
Persona Identity management and verification. private (series C) jobs page
Tyk API gateway and security. private (series B) jobs page
PostHog Product analytics. private (series B) jobs page
Ploomber Cloud platform for data scientists. private (seed) jobs page
Graphite Code review tool. private (series A) jobs page
Sonar Clean code tools. private (series B) jobs page
mobile.dev Cloud-based mobile app test automation. private (pre-seed) jobs page
Blobr E-commerce for APIs. private (seed) jobs page
Inngest TypeScript-based serverless functions. private (seed) jobs page
Fingerprint Device and user identity. private (series C) jobs page
EdgeDB Open source graph-relational database. private (series A) jobs page
Evervault Encryption developer tools. private (series A) jobs page
Pinecone Hosted vector database for AI search applications. private (series A) jobs page
Stytch Authentication API. private (series B) jobs page
Knot APIs for online financial accounts. private (series A) jobs page
Orca Security Cloud security posture management. private (series C) jobs page
Dataiku Data analysis and visualization platform. private (series F) jobs page
DeepL AI translator and writing tools. private (series B) jobs page
Pipefy Low-code business process automation. private (series C) jobs page
MutableAI AI code generation. private (seed) jobs page
Cleanlab Data quality issue identification and remediation. private (series A) jobs page
Bitrise Continuous integration and delivery for mobile. private (series C) jobs page
Anyscale Large language model (LLM) infrastructure. private (series C) jobs page
Dopt Developer tools and components for self-service products. private (seed) jobs page
Context.ai Analytics for products that use large language models (LLMs)... private (seed) jobs page
Census Data activation platform for data warehouses. private (series B) jobs page
Fastly Content delivery network (CDN) and cloud security. public (NYSE: FSLY) jobs page
Seldon MLOps and machine learning platform. private (series B) jobs page
JetBrains Software development tools. private (private equity) jobs page
WireMock API mocking and testing. private (seed) jobs page
CodeSee Code visualization and automation. private (seed) jobs page
Duality Privacy-enhanced data computing. private (series B) jobs page
Kentik Network observability platform. private (series C) jobs page
AI21 Labs private (series C) jobs page
Codefresh Continuous integration and delivery platform. private (series C) jobs page
Marqo Vector database and vector search engine API. private (seed) jobs page
GitHub Source control and deployment automation. private (acquired) jobs page
Sysdig Cloud security. private (series G) jobs page
Weaviate Open-source vector database. private (series B) jobs page
Neon Fully-managed PostgreSQL relational databases. private (series B) jobs page
Pynt API security testing. private (seed) jobs page
Memgraph Optimized Neo4j-compatible graph database. private (seed) jobs page
Chroma Open source embedding vector database. private (seed) jobs page
Neptune.ai MLOps for AI experiments. private (series A) jobs page
Video SDK Real-time video infrastructure for web and mobile. private (seed) jobs page
LiveKit Real-time video, audio and data APIs. private (seed) jobs page
Pusher Communication and collaboration feature APIs. private (acquired) jobs page
LabelBox Data platform for building LLMs. private (series D) jobs page
Hume AI toolkit for understanding human emotion. private (series A) jobs page
Datagran Data analysis, modeling and workflows. private (seed) jobs page
Cube Data source and application middleware. private (series A) jobs page
Superblocks Low-code platform for internal applications. private (series A) jobs page
Surge AI Data labeling and reinforcement learning platform. private (series A) jobs page
Chainguard Software supply chain security. private (series B) jobs page
ScyllaDB NoSQL distributed performance data store. private (series C) jobs page
Chainlink Decentralized computing platform. private (series C) jobs page

By Matt Makai. 2021-2023.