Open Source Startup Podcast

Elena Samuylova is Co-Founder & CEO of Evidently AI, the open source ML monitoring platform. The company's open source project, also called evidently, has over 2K stars on GitHub and is used to evaluate and monitor ML models - from validation to production. The project's Discord channel has over 500 participants.

Evidently AI is a YC company from the S21 batch and is HQ'd in San Francisco.

Nicolas Hourcard is Co-Founder & CEO of QuestDB, creators of the fastest open source time-series database questdb. Their database project has over 8K stars on GitHub and their Slack community has over 1.2K individuals. 

QuestDB has raised over $14M from investors including 468 Capital, Uncorrelated Ventures, and Episode 1. 

Avi Press is Founder & CEO of Scarf, the platform that helps open-source companies understand how their code is being used. 

Scarf has raised over $7M from investors including Race Capital and Freestyle Capital. 

Ajay Kulkarni is Co-Founder & CEO of TimescaleDB, the simplest SQL time-series database. The company's open-source project, timescaledb, has 13K stars and their slack community has over 8K participants. 

TimescaleDB has raised over $180M from investors including Tiger, Redpoint, Icon, NEA and Benchmark. 

Arjun Narayan is Co-Founder & CEO of Materialize, the platform for building data-intensive applications with materialized views. The company's source-available project, also called materialize, has 3.9K stars and their slack channel has over 1.4K participants. 

Materialize has raised over $100M from investors including Kleiner Perkins, Redpoint, and Lightspeed. 

YouTube version of the episode here.

Soumyadeb Mitra is Founder & CEO of Rudderstack, the open-source bidirectional data pipeline platform. Their primary open source project rudder-server provides an open source alternative to SaaS platform Segment and has over 3K stars with a community of over 1.7K on Slack.   

Rudderstack has raised $82M from investors including Insight Partners and Kleiner Perkins. 

Jack Naglieri is Founder & CEO of Panther, the platform to run security operations at scale. It includes detection-as-code, a robust security data lake, and huge scalability with zero-ops. The company started as open-source but closed sourced in 2021. 

Panther is a unicorn company having raised $140M+ from Coatue, ICONIQ, Lightspeed, and 645 Ventures. 

Artyom Keydunov is Co-founder & CEO of Cube.dev, the headless BI platform for building data apps. Cube.dev's open-source project, cube-js, has almost 13K stars on GitHub and helps data engineers and application developers access data from modern data stores, organize it into consistent definitions, and deliver it to every application.

Cube.dev has raised over $20M from investors including Bain Capital, Decibel Partners, Eniac VC, 645 Ventures, Slack Fund, and Betaworks. 

DeVaris Brown & Ali Hamidi are Co-founders of Meroxa, the platform for building real-time data pipelines. The company's open-source project Conduit lets users build and run their data pipelines. 

Meroxa has raised almost $20M from investors including Drive Capital, Root VC, and Amplify Partners. 

Ian Tien is Co-founder & CEO of Mattermost, the open-source messaging and collaboration platform with customers including Fastly, Samsung, Bosch, NASA, AIG, Wealthfront, and the US Air Force. The company has multiple open-source projects focused on collaboration and 34K+ stars across them all. 

Mattermost has raised $70M from investors such as YC and Redpoint.