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Doubleword
Enterprise platform for deploying self-hosted AI models
About Doubleword
Doubleword, formerly known as TitanML, is a London-based company founded in 2021 that develops a self-hosted inference platform for enterprises. The company was founded by Meryem Arik (CEO), Dr. James Dborin (CSO), and Dr. Fergus Finn (CTO). The founding idea originated from the postdoctoral research of Dr. Dborin and Dr. Finn at University College London (UCL), where they discovered that techniques from their work in quantum machine learning could significantly improve AI inference performance. Arik, an Oxford alumna with a background in theoretical physics, joined them to co-found the company.
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Doubleword addresses the challenges businesses face when deploying large language models (LLMs), such as high operational costs, infrastructure complexity, and data privacy concerns. The company provides a platform that simplifies the deployment and management of AI models, including open-source, proprietary, or fine-tuned versions, on any hardware, whether in the cloud or on-premise. This allows clients to maintain control over their AI applications and data. Their flagship product, the Titan Takeoff Inference Server, is designed to make LLM deployment faster and more cost-effective, demonstrating up to 90% reductions in compute costs and significant latency improvements for clients. The platform supports a wide range of models, including generative language models, embedding models, and image-to-text models.
The company's business model is B2B SaaS, targeting enterprises, particularly in regulated industries like finance, that need to self-host AI for security and compliance. Doubleword has formed strategic partnerships with companies like Intel, AWS, Snowflake, and Dataiku. In October 2023, while still operating as TitanML, the company raised $2.8 million in a pre-seed funding round led by Octopus Ventures. In May 2025, the company rebranded to Doubleword and announced a $12 million Series A funding round led by Dawn Capital, with participation from K5 Global and notable angel investors.
At a glance
- Status
- Operational
- Founded
- 2021
- Headquarters
- London, United Kingdom
- Employees
- 13
- Open positions
- None listed
- Dealroom signal
- 67.1/100
- Sector
- AI, Developer Tools, Core AI, Generative AI, MLops, genAI Operation Layer, Hard Tech, Woman Founder, AI Model Training and Development
- Technology
- Artificial Intelligence, Deep Tech, Machine Learning, Natural Language Processing
- Business model
- SaaS
- Client focus
- b2b
Knowledge graph
More headlines
Funding history
Company financing events and reported valuations.
| Deal type | Date | Amount | Valuation | Investors | Source |
|---|---|---|---|---|---|
| EARLY VC✓Equity / VC | May 2025 | $12M | $48M | Dawn Capital | ↗ |
| SEED✓Equity / VC | Oct 2023 | $2.8M | $11M | Octopus Ventures | ↗ |
Financials
Revenue, earnings and other financial measures where available. Years marked “E” are estimates.
Growth signals
Latest recorded traffic for Doubleword is 66K monthly website visits, up 288.2% over the last three months. Doubleword's team grew 8.3% over the past year.
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Investments and acquisitions
Recent portfolio relationships for companies that also act as investors or acquirers.
Investors
From Dealroom's funding and investor records, grouped by the round each investor first entered.
Seed1 investor entered at this stage
Series A1 investor entered at this stage
Dawn Capital
Other known investors12 additional known investors
ATEL Ventures
Bain Capital Ventures
Bessemer Venture Partners
DG Ventures
Grow London
Ignite Next
Intel Ignite
K5 Global
Kleiner Perkins
Sequoia
TCV
UK Sovereign AI
Source: Dealroom Talent Intelligence.
Global footprint
Market sentiment
An AI-synthesised read of the highest-engagement posts about Doubleword on X, ranked by likes and reposts, corporate channels excluded.
Reading the room on X — pulling top posts and synthesizing themes…
Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour
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