Siena AI raises $17.0M Series A (United States, Oct 2026)
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Backed by York IE, Joyance Ventures +2 more · verified emails and LinkedIn on Datapile
Siena raises $17M Series A to build AI agents for consumer brands - The Next Web
Siena AI builds AI agents that act as the 'Agent of Record' for consumer brands, creating a shared intelligence layer connecting customer-facing agents, internal agents, and human teams. The platform automates customer interactions and uses pooled customer data to improve support, shopping, and social engagement. This $17 million Series A funding will be used to develop more autonomous agents and expand the infrastructure brands use to serve customers and grow revenue.
Siena raises $17M Series A to build AI agents for consumer brands The Next Web
| Oct 08, 2026 | Natron Energy | $10.2M | — | United States |
| Oct 08, 2026 | Hone | $60.0M | Seed | United States |
| Oct 08, 2026 | Arena | $200.0M | Series B | United States |
| Oct 08, 2026 | Quaise Energy | $25.0M | Grant | United States |
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