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Company profile

Circeus Tech Stack

AI-focused acquirer and operator of vertical software businesses

Technology, Information and Internet London, England 201–500 employees Privately Held
circeus.com LinkedIn

Circeus buys established software businesses and layers a shared AI platform across them. The stack pairs a multi-model LLM layer (OpenAI, Anthropic, Gemini, Cohere) with RAG and vector stores (Pinecone, Chroma) on top of inherited Ruby on Rails, Node.js and Shopify/Liquid codebases, a sign of heterogeneous acquired products. A hiring mix split across engineering, executive and finance points to deal execution scaling alongside AI build-out.

Tech Stack 23 technologies

Core StackRAG Python JavaScript TypeScript React Vue Node.js Express.js NestJS OpenAI Anthropic GraphQL Ruby Ruby on Rails Redis Shopify PostgreSQL Pinecone Gemini Cohere Sidekiq Liquid Chroma

What Circeus Is BuildingChallenges and projects from their job posts

◆Challenges

  • Sourcing, evaluating and diligencing acquisition targets efficiently
  • Transitioning founder-built businesses into the portfolio
  • Reducing churn and growing cross-sell
  • Replacing manual processes across operations
  • Maintaining valuation models and deal pipeline data

▲Active Projects

  • Evolving portfolio products into AI-driven systems of action
  • Embedding a central AI platform across portfolio
  • Prototyping and shipping AI tools and agents
  • Resetting pricing, packaging and reporting
  • Building automations to replace manual processes
  • Preparing investor relations and fundraising materials

Hiring Activity

Accelerating6 roles · 6 in 30d

Department

Engineering
2
Executive
2
Finance
2

Seniority

Intern
2
C-Level
1
Junior
1
Mid
1
Senior
1
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About Circeus

Circeus is a privately held holding company headquartered in London that acquires and develops mission-critical vertical software. Its focus areas include retail, manufacturing, supply chain and infrastructure tooling. A centralised AI platform is rolled out across portfolio companies to add agentic capabilities and operational efficiency. The group employs 201–500 people and hires across the United Kingdom, Italy, Germany and the Netherlands.

HeadquartersLondon, England
Company Size201–500 employees
Hiring MarketsItaly, United Kingdom, Germany, Netherlands

Frequently Asked Questions

What tech stack does Circeus use?

Circeus uses Python, TypeScript, React, Vue, Node.js, NestJS, Ruby on Rails, PostgreSQL and Redis, plus an AI layer built on OpenAI, Anthropic, Gemini, Cohere, RAG, Pinecone and Chroma.

What is Circeus working on?

Circeus is embedding a central AI platform into portfolio products, shipping AI tools and agents, automating manual processes, and resetting pricing and packaging across acquired businesses.

What countries does Circeus hire in?

Circeus hires in the United Kingdom, Italy, Germany and the Netherlands, with recent roles spanning engineering, finance and executive functions.

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How this profile is built

Circeus's technology stack, projects, and hiring signals are inferred from public hiring and company data — career pages, public listings, and company web presence — then clustered and de-duplicated. Figures are estimates that refresh over time. Read our full methodology →

This is not an official vendor or customer list. It is a technology-adoption signal inferred from public data, intended for B2B research.