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After calamity eliminates us all, cockroaches will inherit the earth. Some species can survive without air for 45 minutes or more, can survive radiation exposure fifteen times greater than what would kill a human, and have been known to weather temperature extremes which would take down insects of lesser hardiness.

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Cockroaches are nothing if not resilient, which makes that bug a particularly good namesake for the company behind a database system designed to keep working in the face of outages elsewhere.

Today, announced it raised $55 million in a Series C round co-led by a trio of firms: , , and existing investor (formerly known as Google Ventures). Prior investors , , , , and participated in the transaction.

Prior to this round, the company had raised $53.5 million across two roughly equally-sized Series A and Series B rounds. Its Series C round effectively doubles the venture capital Cockroach Labs has raised to date, , according to the company and Crunchbase data.

Cockroach Labs is the for-profit company behind , an open source SQL database system designed to survive service outages while operating at massive scale .

Here鈥檚 what that means. CockroachDB can run as 鈥渃loud-native鈥� in a containerized environment (CockroachDB is using ) and across multiple configurations of cloud computing platforms. Major cloud platforms like Amazon Web Services, Microsoft Azure, and Google Cloud all have their own distributed database systems with SQL front-ends, but, obviously, each of those database solutions are unique to each cloud computing provider. A CockroachDB database can be run across , and in hybrid deployments split between privately-managed servers and public cloud computing resources like AWS, Azure, and Google Cloud.

CockroachDB replicates and stores information across a distributed network of database servers, which can be hosted in different physical locations. The system automatically maintains consistency across the entire cluster. Scaling CockroachDB horizontally is as simple as adding additional nodes.

The distributed nature of CockroachDB clusters means that if one set of nodes experiences an outage, other nodes in the cluster can still serve data to maintain service uptime.

For enterprise and managed service customers, Cockroach Labs offers geographic validation among which aren鈥檛 available to users of its publicly-available software. A paying customer can determine where their data is stored. According to the company, this is useful for applications which require fast delivery of data (wherein a distributed CockroachDB cluster is essentially acting like a content distribution network) or need to localize data within a country or region for commercial security or regulatory compliance purposes.

The geo-distribution and scalability aspects of CockroachDB鈥檚 architecture took inspiration from , 鈥淕oogle鈥檚 scalable, multi-version, globally distributed, and synchronously-replicated database.鈥� However, unlike Spanner, which has many internal dependencies, most of which are proprietary to Google, CockroachDB is more or less ready to deploy out of the package, without dependencies of its own.

Cockroach Labs鈥� founders and several of its core contributors were formally employed by Google. Company CEO and CockroachDB co-creator worked on , a successor to the . CTO and co-creator developed the first version of open source Photoshop substitute and joined Google to work on the Google Reader team.1 Chief architect and co-creator also worked on the Google Reader team.

Prior to founding Cockroach Labs, the trio started and sold a venture called , a photo-sharing platform in 2013.

Profiles of the company published by Wired and said that its founders had been users of a predecessor database technology at Google called Bigtable and actively followed the development of Spanner since was published in 2012.

The initial commit for CockroachDB was made to Github in May 2014. Cockroach Labs in February 2015. CockroachDB 1.0 was .

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