DevOps & Platform Engineering

GitLab

San Francisco, California, USA

GitLab is a DevSecOps platform company whose single application covers source code management, CI/CD, security testing and software delivery, with AI features under GitLab Duo. Available as SaaS or self-managed and built on an open core model, it serves development and platform teams. GitLab Inc. was founded in 2014, operates all-remote and is listed on Nasdaq.

GitHub

San Francisco, California, USA

GitHub is a software development platform for hosting Git repositories and collaborating on code, used by developers, open source projects and enterprises. Its products include GitHub Actions for CI/CD, GitHub Copilot for AI-assisted coding, GitHub Advanced Security and Codespaces. Founded in 2008 and based in San Francisco, GitHub has been owned by Microsoft since 2018.

Atlassian

Atlassian is a software company founded in Sydney, Australia, in 2002 by Mike Cannon-Brookes and Scott Farquhar. It sells team collaboration and software development tools including Jira, Confluence, Jira Service Management, Bitbucket, Loom and the Rovo AI platform, delivered mainly through Atlassian Cloud. Atlassian is listed on Nasdaq and redomiciled to the United States in 2022.

JFrog

Sunnyvale, California, USA

JFrog is a software supply chain company whose JFrog Platform manages and secures software packages and binaries from development to production. Its products include JFrog Artifactory, a universal artifact repository, JFrog Xray and Advanced Security for vulnerability and licence scanning, JFrog Curation and JFrog ML. Founded in 2008 in Israel, JFrog is headquartered in Sunnyvale, California, and listed on Nasdaq.

Harness

San Francisco, California, USA

Harness is a US software delivery platform company offering AI-assisted continuous integration, continuous delivery and GitOps, feature management, cloud cost management, security testing, chaos engineering and an internal developer portal. It serves engineering and platform teams in enterprises. Founded in 2017 by Jyoti Bansal, co-founder of AppDynamics, Harness is headquartered in San Francisco and privately held.

CircleCI

San Francisco, California, USA

CircleCI is a US continuous integration and delivery (CI/CD) company founded in 2011 and headquartered in San Francisco. Its cloud and self-hosted server platform automates building, testing and deploying software, with configuration as code, orbs for reusable configuration, and support for Linux, macOS, Windows, Arm and GPU execution environments.

HashiCorp

San Francisco, California, USA

HashiCorp is a US infrastructure software company known for Terraform for infrastructure as code and Vault for secrets management, alongside Consul, Nomad, Packer, Vagrant and Boundary. It offers these through HashiCorp Cloud Platform and self-managed enterprise editions. Founded in 2012 by Mitchell Hashimoto and Armon Dadgar in San Francisco, HashiCorp was acquired by IBM in 2025.

CloudBees

CloudBees is a US software delivery company founded in 2010. It sells enterprise CI/CD and DevSecOps products built around Jenkins, including CloudBees CI and CloudBees Unify, with capabilities for release orchestration, feature management and compliance. CloudBees is a major contributor to the Jenkins open-source project and serves large enterprises with governed software delivery at scale.

Octopus Deploy

Brisbane, Queensland, Australia

Octopus Deploy is an Australian software company that makes a continuous delivery and release management platform for automating deployments and runbooks across on-premises, cloud and Kubernetes environments. Its products include Octopus Deploy, available as Octopus Cloud or self-hosted Octopus Server, and Codefresh, a GitOps platform built on Argo CD. Founded in 2012 by Paul Stovell, it is headquartered in Brisbane.

Pulumi

Seattle, Washington, USA

Pulumi is an infrastructure-as-code company headquartered in Seattle, Washington, founded in 2017 by Joe Duffy and Eric Rudder. Its open-source Pulumi IaC tool lets engineers define cloud infrastructure in general-purpose languages such as TypeScript, Python, Go, C# and Java. The commercial Pulumi Cloud adds state management, policy, secrets management (Pulumi ESC) and platform engineering features.

Buildkite

Buildkite is a software delivery platform company founded in Melbourne, Australia, in 2013. Its hybrid CI/CD platform runs pipelines on agents hosted in customers' own infrastructure or on Buildkite-hosted agents, and its product suite includes Pipelines, Test Engine and Package Registries. It is used by engineering teams that need to run large, fast and secure builds.

LaunchDarkly

Oakland, California, USA

LaunchDarkly is a feature management and experimentation platform that lets software teams release features behind feature flags, roll out changes progressively, run experiments and roll back without redeploying code. It provides SDKs for major languages and serves engineering and product teams at enterprises and software companies. Founded in 2014 by Edith Harbaugh and John Kodumal, it is headquartered in Oakland, California.

Spacelift

Spacelift is an infrastructure-as-code orchestration platform used by platform engineering and DevOps teams to automate, govern and audit infrastructure workflows. It supports Terraform, OpenTofu, Pulumi, AWS CloudFormation, Ansible and Kubernetes, with policy-as-code, drift detection and self-service provisioning. Spacelift is a privately held, venture-backed company and a founding supporter of the OpenTofu project.

env zero

env zero, formerly env0, is an infrastructure-as-code automation, governance and cloud asset management platform for platform engineering and DevOps teams. It manages Terraform, OpenTofu, Pulumi, CloudFormation and other IaC workflows with self-service environments, policy as code, cost controls and drift detection, and added cloud asset inventory through its March 2026 merger with CloudQuery. env zero is privately held.

Humanitec

Berlin, Germany

Humanitec is a Berlin-based platform engineering company that provides the Humanitec Platform Orchestrator, a backend for building internal developer platforms that standardises how applications and infrastructure are configured and deployed. It created Score, an open source workload specification, and organises PlatformCon, a platform engineering conference. Humanitec serves enterprise platform teams and is privately held.

Port

Port is a software company that makes an internal developer portal for platform engineering teams. Its product combines a software catalogue, self-service actions, scorecards and dashboards so developers can find services, provision resources and follow engineering standards. Port was founded in 2022 by Zohar Einy and Yonatan Boguslavski and has roots in Israel.

Cortex

San Francisco, California, USA

Cortex is an internal developer portal company founded in 2019 and based in San Francisco. Its platform catalogues an organisation's services, owners and dependencies, and uses scorecards, initiatives and workflows to track engineering standards such as production readiness, security and reliability. Cortex serves platform engineering and developer experience teams and is a privately held, venture-backed company that went through Y Combinator.

Perforce

Minneapolis, Minnesota, USA

Perforce is a DevOps software company offering version control, infrastructure automation, testing, static analysis and test data management tools. Its portfolio includes P4 (formerly Helix Core) version control, Puppet, Delphix, BlazeMeter, Perfecto, Klocwork and Helix ALM, used heavily in game development, embedded and regulated industries. Founded in 1995 by Christopher Seiwald, Perforce is privately owned by Clearlake Capital and Francisco Partners and headquartered in Minneapolis.

Progress Software

Burlington, Massachusetts, USA

Progress Software is a US software company headquartered in Burlington, Massachusetts, founded in 1981. It sells infrastructure and application development software including the Chef DevOps automation suite, OpenEdge, Telerik and Kendo UI developer tools, MOVEit managed file transfer, Sitefinity, MarkLogic and ShareFile. Progress is listed on Nasdaq and grows substantially through acquisitions of established software products.

Sonatype

Fulton, Maryland, USA

Sonatype is a US software supply chain security company founded in 2008 and based in Fulton, Maryland. It develops Nexus Repository, a widely used artifact repository manager, and the Sonatype Lifecycle, Firewall and SBOM Manager products for open source governance and dependency risk. Sonatype is the steward of Maven Central, the main public repository for Java components.