Chronosphere Raises $43M to Accelerate Cloud-Native Monitoring Growth

Chronosphere, the cloud-native monitoring platform founded by ex-Uber engineers, has announced a \(43.4 million Series B funding round alongside the general availability of its commercial service. This latest investment brings the company's total funding to \)54.4 million since its 2019 launch.

Key Investment Highlights

  • Lead Investors: Greylock, Lux Capital, and Lee Fixel (returning from Series A)
  • New Participant: General Atlantic joins the funding round
  • Total Raised: $54.4 million across two funding rounds

From Uber’s M3 Project to Commercial Success

Founded by CEO Martin Mao and CTO Rob Skillington, Chronosphere builds upon their work developing Uber’s open-source M3 monitoring system. The founders recognized the need to simplify large-scale monitoring operations:

“M3 solves complex problems at scale, but requires significant investment to operate effectively. Our first priority was making this technology accessible through managed services,” explained Mao.

Product Development Focus

  • Spent 2020 refining the commercial platform
  • Leveraged open-source foundation while creating differentiated features
  • Engaged with beta customers to validate product-market fit

Strategic Growth and Company Culture

Despite having remaining Series A funds, Chronosphere accepted this new investment to:

  • Accelerate product development
  • Expand hiring initiatives
  • Strengthen customer confidence in long-term viability

Workforce Expansion

  • Grew from 13 employees (2019) to 50 currently
  • Plans to double headcount by end of 2022
  • Prioritized diversity initiatives from early stages:
    • Established company-wide diversity goals
    • Implemented accountability measures
    • Built distributed teams across Seattle, New York, and Lithuania

The Future of Chronosphere

With its commercial service now generally available, Chronosphere is positioned to:

  1. Convert open-source users to commercial customers
  2. Expand its enterprise client base
  3. Maintain a hybrid remote work model with strategic office hubs

The company’s unique position—combining proven open-source technology with commercial innovation—makes it a strong contender in the competitive cloud monitoring space.


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