TOKYO · EST. 2024

7KGroup builds platform infrastructure for the modern web.

A Tokyo-based technology company housing multiple projects: commercial platform engineering services and open-source infrastructure tools.

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Four projects. One mission.

7KGroup is the parent entity. Each project has its own identity, purpose, and team. Choose the one that matches your needs.

WHAT WE BELIEVE

Platform engineering is not a luxury. It is a prerequisite.

01

Open Source First

We open-source our stack catalog and game-server platform (Minato). Engineering buyers trust what they can read. Clients can leave.

02

Transparency Over Lock-in

Operational dependency is fine. Technical lock-in is not. Every engagement has a clear handover story so clients can self-operate when ready.

03

Operational Excellence

We run what we build. Day 1 deploy, Day 2 operate, Day 3 evolve. Retainer-based, not project-based.

04

Cloud-Agnostic by Design

Kubernetes, Crossplane, ArgoCD. No cloud-specific magic. Portability is a feature, not an afterthought.

LATEST FROM THE BLOG

Engineering notes

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ArchitectureAug 9, 2026

What Golden Paths Actually Are (and Why Most of Them Die)

I've rebuilt the same platform more than once across my career. Golden paths are what make the work transfer, not just the knowledge. Kickoff to a series on building baseline golden paths from real platform work: Crossplane XRDs, Backstage scaffolding, Argo CD at 110 apps on 10 clusters, and why the opt-out clause is the whole trick.

ArchitectureJul 17, 2026

Agnostic primitives with cdk8s and Crossplane v2: one composition per product

How I replaced per-backend Crossplane Compositions with a single Go orchestrator function, and the exact setup a team runs to consume PostgresInstance and ObjectBucket.

ArchitectureJul 17, 2026

Productized stacks with Hiroba primitives, KRO, and Argo CD

How I build a self-service observability stack on top of Hiroba primitives using KRO ResourceGraphDefinitions and Argo CD — with the failures it took to get there.

TRUST

Built by engineers, for engineers.

2024Founded
TokyoHeadquarters
3Active Projects
2OSS Repositories

7KGroup was founded in Tokyo by infrastructure engineers who believed that platform engineering should be accessible to companies of all sizes — not just those with $3M/year to spend on a dedicated platform team.

We work with Series A–C companies with 20–150 engineers who need a working platform now, not in 12 months. Our stacks are open-source. Our process is transparent. Our goal is to make you self-sufficient.

TRUST

What engineers say.

COMING SOON

We're collecting stories from the teams we work with.
Check back soon for real testimonials and case studies.

OPEN SOURCE

We ship in public.

Our core stacks and tools are open-source. You can read the code, fork the repos, and deploy them yourself. We sell operation, not access.

MINATO★ 28

Kubernetes-native game server orchestration. Operator + Agent SDK for persistent, multi-game dedicated servers.

Latest: v0.2.0-alphaLearn more →
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Join 200+ engineers. Past issues: platform engineering golden paths, Loki tuning, Minato architecture.

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Let's talk infrastructure.

Whether you need a platform engineering team, want to evaluate our open-source tools, or just want to say hello — we're here.