Astronomer

Overview

Astronomer Inc. is the commercial company behind Apache Airflow, the open-source platform that has become the de facto standard for data orchestration — the practice of automating the pipelines that move and transform data between applications. Founded in Cincinnati, Ohio, in 2015, the company sells Astro, a managed cloud version of Airflow, and by 2025 served organizations in more than 35 countries (Tech Startups; SiliconANGLE). A private company valued at roughly $740 million after its May 2025 Series D, Astronomer became a household name two months later for an entirely different reason: its CEO resigned after being caught on a concert “kiss cam” (The Economic Times; The Tribune).

The commercial steward of Apache Airflow

Airflow began as an internal project at Airbnb in 2014 and grew into one of the largest open-source communities in the world; by 2024 it was used by more than 80,000 organizations and downloaded more than 324 million times in a single year (SiliconANGLE; The Economic Times). Astronomer, founded in 2015 and backed by the AngelPad accelerator, built its business on making Airflow manageable at enterprise scale — first with Astronomer Cloud, a multi-tenant Airflow-as-a-service offering, and Astronomer Enterprise, a Kubernetes-native platform for running many Airflow deployments inside one company (Tech Startups).

Early credibility came from Airflow’s creator himself: Maxime Beauchemin served as a strategic advisor to Astronomer, and by 2019 adopters cited in coverage included Lyft, PayPal, Twitter and Apple (Tech Startups). Astronomer’s engineers went on to drive major Airflow releases, including Airflow 3.0, described as the most significant release in the project’s history (The Economic Times).

From $213M Series C to a $93M Series D

Astronomer’s funding arc tracks the rise of data infrastructure as an investment category. In March 2022 it raised $213 million in a Series C led by Insight Partners — whose managing director George Mathew called Airflow, “driven by the Astronomer team,” the “generational platform for modern orchestration” — and used the occasion to acquire Datakin, a Berkeley startup whose data-lineage tooling helps companies detect errors in their data (SiliconANGLE). By then the company said Astro was used in more than 35 countries, including by multiple Fortune 500 companies, and that headcount had grown tenfold since 2020 (SiliconANGLE).

In May 2025, Bain Capital Ventures led a $93 million Series D with participation from Salesforce Ventures, Insight and others. Astronomer said Astro’s annual recurring revenue had grown 140% over the prior year (off an undisclosed base) and that efficiency measures had put it on track to reach profitability within two years, with the new capital earmarked for product development and international expansion (SiliconANGLE).

The kiss-cam scandal

On July 16, 2025, a stadium “kiss cam” at a Coldplay concert at Gillette Stadium in Massachusetts showed CEO Andy Byron embracing chief people officer Kristin Cabot; when the pair realised they were on the jumbotron, Byron ducked out of sight and Cabot covered her face, prompting frontman Chris Martin to quip that they were “either having an affair or just very shy.” The clip went viral (The Tribune).

Astronomer placed Byron on leave on July 18 and launched a formal investigation; on July 19 the board accepted his resignation, stating that the company’s leaders “are expected to set the standard in both conduct and accountability, and recently, that standard was not met.” Co-founder and chief product officer Pete DeJoy became interim CEO while the board searched for a permanent replacement (The Tribune).

What this profile does not claim

• It does not claim Astronomer is the owner of Apache Airflow — Airflow is an open-source project (originally Airbnb’s); Astronomer is its leading commercial developer.
• It does not claim when Andy Byron succeeded Joe Otto as CEO — Otto was CEO at the 2022 round and Byron held the role by May 2025; the transition date was not verified.
• It does not claim a $1 billion-plus valuation at any point — only the roughly $740 million post-Series-D figure was verified.
• It does not claim Kristin Cabot resigned — widely reported, but not verified from a fully-read tier1/tier2 source.
• It does not claim the company’s current CEO beyond Pete DeJoy’s interim appointment in July 2025.