Major Startup Funding Rounds: Week of April 19 – 25, 2025
Stay informed about the most significant funding deals in the U.S. as we provide an overview of startup investments exceeding $100 million. This weekly update emphasizes notable financial rounds and highlights key players across various sectors.
Overview of the Week
This week did not witness any billion-dollar funding rounds, but a diverse array of startups secured substantial investments. Funding transactions spanned industries including cybersecurity, fintech, industrial sectors, and messaging solutions.
Top Funding Rounds
- Chainguard – $356 million (Cybersecurity)
Chainguard, a software supply chain security company, raised a substantial $356 million in Series D financing, achieving a valuation of $3.5 billion. The funding, co-led by Kleiner Perkins and IVP, represents a significant jump from its previous valuation of $1.12 billion after a Series C round. Founded in 2021, Chainguard has raised a total of $612 million to date, with expectations to exceed $100 million in annual recurring revenue (ARR) by fiscal year 2026.
- Supabase – $200 million (Database)
Supabase, known for its open-source relational database tailored for AI applications, achieved a $200 million Series D investment led by Accel, bringing its valuation to $2 billion. Established in 2020, Supabase has raised a cumulative total of $396 million.
- Electra – $186 million (Industrial)
Boulder-based Electra, which focuses on clean iron production using renewable energy, secured $186 million in Series B funding led by Capricorn Investment Group and Temasek Holdings. The funds will assist in constructing a demonstration plant in Colorado. Since its establishment in 2020, Electra has raised $214 million.
- Altruist – $152 million (Fintech)
Los Angeles startup Altruist raised $152 million in funding led by GIC, resulting in a valuation of $1.9 billion. An earlier Series E round last May valued the company above $1.5 billion. Founded in 2018, Altruist has raised a total of $601.5 million and offers a self-clearing brokerage platform for investment advisers.
- Manychat – $140 million (Messaging)
Palo Alto’s Manychat received $140 million in growth funding led by Summit Partners. The company specializes in conversational AI and automation tools, facilitating billions of messages annually for over a million businesses. Manychat plans to use the funding for global expansion and further development of its AI features. Active since 2015, it has raised $163 million so far.
- Electra.aero – $115 million (Aerospace)
Electra.aero, based in Virginia, raised $115 million in Series B funding, focused on developing a hybrid-electric short takeoff and landing aircraft. The funds will support pre-production and certification processes for its EL9 aircraft, for which it has secured significant pre-orders. The company, founded in 2020, has announced this as its first funding round.
- Biolinq – $100 million (Biotech)
Biolinq, a San Diego biotech startup, raised $100 million in Series C funding led by Alpha Wave Ventures. Founded in 2012, Biolinq focuses on developing multi-analyte biosensors aimed at enhancing metabolic health and has raised a total of $276 million.
- Dataminr – $100 million (Analytics)
New York-based Dataminr secured $100 million through convertible financing from Fortress Investment Group. Known for its real-time data detection platform, Dataminr approaches $200 million in annual recurring revenue and has raised $1.2 billion since its founding in 2009.
- Flow – Over $100 million (Real Estate)
Flow, the residential real estate startup founded by Adam Neumann, raised over $100 million at a valuation of $2.5 billion, receiving support from notable investors including a16z.
- Endor Labs – $93 million (Cybersecurity)
Palo Alto-based Endor Labs raised $93 million in Series B funding. The startup focuses on application security solutions and has gathered a total of $188 million since its inception in 2022.
Global Highlights
Beyond U.S. borders, the largest funding deal was led by Qianxun Spatial Intelligence in China, successfully raising approximately $137 million. The company specializes in high-precision positioning services.
Methodology
This report summarizes the top funding rounds tracked in the Crunchbase database for the period of April 19 to April 25, 2025. While most funding rounds are well-represented in the database, some may be reported later within the week.
Illustration: Dom Guzman