Co-founded by a professor emeritus at UC Berkeley, Deep Isolation has secured strategic funding from NAC International for its nuclear waste disposal business.

The $11.5m Echo Health Ventures-backed round more than doubled the healthcare navigation app developer's overall funding.

Chronic illness drug developer Sigilon Therapeutics, co-founded by MIT and UIC researchers, has filed to go public after raising almost $200m in funding.

CapitalG-backed short-term accommodation provider Airbnb last raised financing at a $1bn pre-money valuation in April.

Bertelsmann Asia Investments contributed to a round that the distributed database developer will use for global growth and research and development.

MIT-founded grid battery spinout Form Energy expects to reveal the round's investors within weeks after it pushed its overall funding to more than $120m.

Chronic illness drug developer Sigilon Therapeutics has filed to go public after raising almost $200m from investors including Eli Lilly.

Pfizer Ventures is the largest individual shareholder in the cancer therapeutics developer, which has filed for a $100m offering.

Existing backers Takeda, Deerfield and Bay City Capital have provided $10m to help progress research from multiple institutions.

The Eni and Saudi Aramco-backed energy storage technology developer has raised series C financing to push its total funding past the $120m mark.