Latest Startups & Entrepreneurship News

đź“…December 31, 2025 at 1:00 PM
December 2025 saw massive VC funding surges in AI, biotech, defense, and climate tech startups, with record U.S. investments topping $1T amid year-end deals.
1

Databricks Secures Record $4B Funding

Databricks raised a monumental $4B, anchoring massive capital into AI data platforms amid December's surge in hard tech investments.Source 1 This reflects investor focus on AI economy bedrock, including next-gen geothermal and hypersonic defense.Source 1 Valuation and usage details highlight enterprise security priorities.Source 1

2

Unconventional AI Raises Historic $475M Seed

Unconventional AI secured $475M seed at $4.5B valuation to build thermodynamic annealing chips solving AI's energy crisis.Source 1 Founded by ex-Databricks experts and MIT/Stanford researchers, it pioneers analog silicon physics beyond digital logic.Source 1 Largest seed round signals hard tech bets.Source 1

3

Saviynt Raises $700M Series B at $3B Valuation

Saviynt closed $700M Series B on Dec 9 to accelerate AI-based migration tools and cloud integrations.Source 1 Funding targets product development for enterprise security.Source 1 Positions it as key player in AI economy protection layers.Source 1

4

Castelion Lands $400M for Hypersonic Defense

Castelion raised $400M private equity on Dec 5, boosting valuation to $9B for AI-driven defense platform.Source 1 Investment advances hypersonic tech development.Source 1 Part of December's hard tech capital influx.Source 1

5

Dazzle AI Secures $8M Seed from Top VCs

Dazzle, founded by Marissa Mayer, raised $8M seed at $35M post-money for consumer AI personal assistant.Source 2Source 4 Backed by Greycroft, Kleiner Perkins, Amino Capital.Source 2Source 4 Targets everyday AI software applications.Source 2

6

Atavistik Biotech Raises $120M Series B

Clinical-stage biotech Atavistik raised $120M Series B from Nextech, Column Group, Lux Capital for precision allostery therapeutics.Source 2 Focuses on pharmaceuticals, drug discovery, clinical trials.Source 2 Amid year-end strategic sector caution.Source 2

7

Coinbax Raises $4.2M Seed for Stablecoin Tech

Coinbax developed programmable trust layer for stablecoin payments, raising $4.2M seed from Connecticut Innovations, others.Source 2Source 4 Enhances institutional controls in blockchain fintech.Source 2Source 4 Supports security and payments innovation.Source 2

8

Lemon Slice Bags $10.5M Seed for AI Avatars

Lemon Slice raised $10.5M seed from Matrix Partners, Y Combinator for real-time interactive AI avatars from images.Source 2 Targets deeptech SaaS video experiences.Source 2 Boosts engaging consumer AI content.Source 2

9

Neurable Closes $35M Series A for BCI Tech

Neurable raised $35M Series A for noninvasive brain-computer interface for everyday use.Source 4 Leads in BCI for consumer applications.Source 4 Funding supports scaling neurotech innovations.Source 4

10

Manifold Raises $18M Series B for Life Sciences AI

Manifold secured $18M Series B as AI platform for life sciences.Source 4 Advances biotech and drug development tools.Source 4 Reflects AI-biotech funding momentum.Source 4

11

U.S. Startup Financing Hits Record $1T in 2025

PitchBook reports U.S. unlisted companies financing reached $1T in 2025, topping 2021's $92B record.Source 8 Driven by VC rush to AI leaders like OpenAI, Anthropic.Source 8 Shields startups from downturns, fuels growth.Source 8

12

Global VC Climbs to $120B in Q3 2025

Q3 2025 global VC hit $120B, up from Q2's $112B, fourth straight growth quarter.Source 5 Signals re-energized startup ecosystem into 2026.Source 5 Optimism in AI, climate, biotech innovations.Source 5