OneRagtime
VC Fund
Paris, France
OneRagtime is a VC fund in Paris focused on Software and Artificial Intelligence. We are a venture capital platform that sources, finances and scales early-stage European start-ups. Our fully digitised investment process offers our exclusive community the freedom and flexibility to choose how they invest, on a deal-by-deal basis or via our funds. Are you looking to be funded? Are you looking to invest in exclusive start-ups?
- Total investments:
- 59
- Last investment:
- Lead investor:
- 58%
Last updated:
For AI agents: llms.txt
Industries OneRagtime invests in
Stages OneRagtime invests in
Countries OneRagtime invests in
Round sizes
Contacts
| Name | Phone | Socials | |
|---|---|---|---|
| See all 13 contacts → | |||
Round size
- Seed
- $848k–$7.7M
- Series A
- $3.5M–$14M
- Venture - Series Unknown
- $1M–$351M
Investment Focus
Industry
- Software 11 (19%)
- Artificial Intelligence 9 (15%)
- Internet 7 (12%)
- Apps 6 (10%)
- Financial Services 6 (10%)
Stage
- Seed 30 (51%)
- Series A 16 (27%)
- Venture - Series Unknown 4 (7%)
- Series B 3 (5%)
- Funding Round 3 (5%)
Country
- France 36 (61%)
- United States 3 (5%)
- Spain 2 (3%)
- Canada 2 (3%)
- Ireland 1 (2%)
Team
| Name | Title | Investments | Links | |
|---|---|---|---|---|
Ankit Tewari
Data Catalyst
|
Data Catalyst | Total investments: 0 | Find email | |
César Chanut
Venture Director
|
Venture Director | Total investments: 0 | Find email | |
Gautier Mignot
Product Catalyst
|
Product Catalyst | Total investments: 0 | Find email | |
Mateo Vasquez
Frontend Craftsman
|
Frontend Craftsman | Total investments: 0 | Find email | |
Oscar Peribere
Portfolio Catalyst
|
Portfolio Catalyst | Total investments: 0 | Find email | |
| See all 13 team members → | ||||
Investments
| Company | Description | Round | Links |
|---|---|---|---|
| Antimatter is an AI infrastructure company that combines energy, data center, and cloud computing capabilities into a single integrated platform. The company was formed through the combination of three operating businesses, Data Factory, Policloud, and Hivenet, which together provide flexible power generation, modular data center infrastructure,and distributed cloud software. Its mission is to make sovereign, sustainable, and scalable AI computing more accessible by addressing the growing constraints around energy availability, data center capacity, and AI workload deployment. The company's infrastructure model is built around deploying compute resources where energy is already available rather than constructing large centralized facilities that require new grid connections. Through modular micro data centers and distributed cloud orchestration software, Antimatter enables AI workloads to run across geographically distributed locations while maintaining unified access to computing, storage, and networking resources. | $350.8M / Venture - Series Unknown / May 04, 2026 | ||
| Elefantia is a digital platform that assists users in writing and preserving their personal life stories through AI-supported interviews and storytelling. It enables users to record their memories by answering personalized questions via phone or online, which are then transformed into an authentic, engaging narrative. The service offers variouspackages, including options to create e-books, printed books, and personalized biographer-guided storytelling sessions. It also provides support for seniors or digitally less experienced users through personal assistants called "Elefantos." Elefantia focuses on capturing and safeguarding memories to create meaningful legacies across generations. The company operates out of Saint-Malo, France, and uses AI to simplify and enrich the memoir writing process. | $1.2M / Seed / Nov 17, 2025 | ||
| Rippletide helps enterprises build trustworthy, explainable AI agents by moving their decision logic out of large language models and into a Hypergraph Decision Database. Its technology provides a structured reasoning layer that enforces guardrails, compliance, and full auditability of every AI decision — ensuring agents behave predictably, alignwith business policies, and can be deployed safely in production. With Rippletide, companies gain the missing runtime governance layer for agentic AI — combining deterministic reasoning, dynamic constraints, and transparent traceability — so that every agent can act with less than 1 % hallucinations and full regulatory readiness. | $4.7M / Seed / Sep 23, 2025 | ||
| Estaly provides insurance products and services for online businesses. | $3.9M / Seed / Apr 23, 2024 | ||
| Hive is a decentralized cloud platform based on the peer-to-peer exchange of the available capacities of users' computers. | $13M / Series A / Mar 27, 2024 | ||
| Groover, the all-in-one platform for independent artists. Groover has built a community of 200,000 independent artists subscribed to its platform in more than 186 different countries. Over two million feedback were made on tracks from Groover's vetted community of 3,000 music curators and professionals. | $8M / Series A / Feb 13, 2024 | ||
| MoSo assists content creators in realizing their maximum potential and expanding their businesses on all social media channels. | $2.2M / Seed / Dec 13, 2023 | ||
| Stokelp is the first overstock recovery marketplace dedicated to food manufacturers. | $3.3M / Seed / Jul 12, 2023 | ||
| Sonio is an artificial intelligence for fetal ultrasound, helping practitioners analyse and diagnose congenital malformations. | $14.3M / Series A / Jul 11, 2023 | ||
| Choose is an online marketplace designed to discover and express views on fashion and lifestyle products. They have purchasing power and support brands with environmental and ethical commitments, sustainable ingredients, local production, and inspiring backstories. They offer up-to-date, trendy products and allow users to rate and review differentproducts of different brands and give opinions on new product creation. | Series B / Jun 01, 2023 | ||
| See all 59 investments → | |||
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FAQ
What does OneRagtime invest in?
OneRagtime invests primarily in Software, Artificial Intelligence and Internet startups, most often at Seed and Series A stage. Most of the 59 investments tracked by Shizune back companies in France. The Investment Focus section breaks down every industry, stage and country in the portfolio.
What is OneRagtime's check size?
OneRagtime typically joins rounds of $848k–$7.7M at Seed, $3.5M–$14M at Series A and $1M–$351M at Venture - Series Unknown. These ranges are 10th–90th percentile round sizes calculated from confirmed public funding rounds, so they are a realistic guide to the rounds OneRagtime participates in.
How do I contact OneRagtime?
Public channels for OneRagtime include LinkedIn, X (Twitter) and the website linked on this profile. For a verified work email and phone number, create a free Shizune account — contact data is searched across 20+ sources and validated before delivery, so your outreach lands in the right inbox.
Who are the partners at OneRagtime?
The team at OneRagtime includes Ankit Tewari (Data Catalyst), César Chanut (Venture Director) and Gautier Mignot (Product Catalyst), among 13 team members tracked by Shizune. The Team section lists each member with their title, investment count and links.
Is Shizune's investor data accurate?
Yes — every stat on this profile is calculated from confirmed public funding rounds monitored across hundreds of sources since 2020. This profile was last refreshed in Oct 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.
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