Sienna Venture Capital
Venture capitalParis · Series A–Growth · 6 people tracked
Investment thesis
Sienna Venture Capital invests in early growth and growth-stage technology companies, typically deploying $5 to $10 million per company. The firm applies disciplined investment criteria and leads or co-leads rounds. Founded by Isabelle and Thomas, who previously worked together within an investment holding co-founded by Isabelle where they helped launch several venture capital funds and backed 50+ tech companies, the firm operates in partnership with GBL. Beyond capital, the team positions itself as trusted and approachable advisors to the businesses it supports, focused on fostering growth and innovation across the tech sector.
Source: firm website, verified Aug 3, 2026.
Team · 6 people
from the firm's website & public directories
What they invest in
from 3 of 9 portfolio companiesHardware ×2AI & Machine Learning ×1Deep Tech ×1Fintech ×1HR Tech ×1InsurTech ×1IoT ×1Semiconductors ×1
HQs:United States×1
Investments · 9 tracked
founders shown can be your intro pathDustPhotonics develops silicon photonics chips (PICs) and an end-to-end SiPho platform with laser integration and fiber coupling, based on its proprietary L3C laser-attach technology.
Deep TechHardwareSemiconductors
Hourly is a payroll and workforce platform that lets small business owners run payroll, track employee time, file taxes, and manage integrated workers' compensation insurance.
FintechHR TechInsurTechPalo Alto, US
Tal Sagi(Executive Officer, Director)Amir Faintuch(Director)Shay Litvak(Executive Officer, Director)Tomer Sagi(Executive Officer, Director, Promoter)Tom Sagi(Co-founder & CEO)
BoardHaim Sadger(Director)
AI imaging solution for cancer diagnostics.
Sugar-based technology aimed at transforming the sugar industry.
Platform that automates and orchestrates security remediation across teams and tools.
Gen-AI based search engine that simplifies enterprise knowledge management.
Portfolio news
latest coverage across their companiesNexar · calcalistech.com · Jul 2, 2026
Frequently asked questions
- What stage does Sienna Venture Capital invest at?
- Sienna Venture Capital invests at the Series A, Growth stages.
- What is Sienna Venture Capital's typical check size?
- Sienna Venture Capital typically writes checks of $5M – $10M.
- What sectors does Sienna Venture Capital focus on?
- Sienna Venture Capital focuses on AI & Machine Learning, Data & Infrastructure, Enterprise Software, Fintech, FoodTech, InsurTech, Mobility & Transportation, SaaS, Sector Agnostic, Semiconductors.
- Where is Sienna Venture Capital located?
- Sienna Venture Capital is headquartered in Paris, FR.
- Does Sienna Venture Capital lead rounds?
- Yes, Sienna Venture Capital leads investment rounds.
Media · Podcasts & interviews
featuring the teamL'Agefi interviews Isabelle Amiel Azoulai: "Sienna Venture Capital believes in Tech for Purpose!"
Sienna Investment Managers · Isabelle Amiel
Images
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