[4/19 - 4/25] Notable Large-Scale Funding

Last week (April 19–25, 2025), the U.S. startup scene saw a series of large-scale funding rounds across a diverse range of industries. High-profile themes included rounds reaching multi-billion dollar valuations, clean-tech backed by renewable energy, and agentic AI chatbots. In this article, we select the top 10 funding rounds from seven key sectors—cybersecurity, databases, industrial, fintech, and messaging—and analyze them from the perspectives of "Company Overview," "Funding Highlights," and "Future Outlook." Let's break down the specific funding amounts and backgrounds for each case to unravel the visions these companies are aiming for.

1. Chainguard: $356 Million Raised—Guardians of the Software Supply Chain

1-1. Company Overview

Chainguard is a supply chain security company that provides "guarded open-source software" to eliminate threats in the software development process. Despite being founded in 2021, the Kirkland, Washington-based company has rapidly grown its Annual Recurring Revenue (ARR) to $40 million.

1-2. Funding Round Highlights

In April 2025, the company raised $356 million in a Series D round, reaching a valuation of $3.5 billion. Kleiner Perkins participated as a new investor, with existing investor IVP continuing its support. This represents approximately a 3x increase in valuation from the previous Series C round ($140 million raised at a $1.12 billion valuation).

1-3. Future Outlook

Chainguard has publicly stated its goal to exceed $100 million in ARR by the end of FY2026. The company plans to further expand its market by providing a comprehensive security layer to enterprises that are heavily dependent on open source.

2. Supabase: $200 Million Raised—The Counterattack of Open-Source Databases

2-1. Company Overview

Supabase develops an open-source relational database that is gaining attention as a "Firebase killer." Although it is a young company founded in 2020, its strength lies in its high flexibility, which is optimized for AI application development.

2-2. Funding Round Highlights

The company raised $200 million in a Series D round led by Accel, reaching a valuation of $2 billion. Along with existing investors, the funds will be used to strengthen platform R&D and accelerate global expansion.

2-3. Future Outlook

To compete successfully against Firebase, the company is pursuing the dual goals of being "fully managed" and "customizable." They also plan to focus on multilingual documentation and building out their ecosystem.

3. Electra: $186 Million Raised—Reducing Steel CO₂ with Clean Iron

3-1. Company Overview

Electra develops clean iron technology that produces pure iron from iron ore using renewable energy. It holds the potential to significantly reduce the approximately 10% of global CO₂ emissions associated with traditional steelmaking processes.

3-2. Funding Round Highlights

The company secured $186 million in a Series B round. The funds are earmarked for the construction of a demonstration plant in Colorado, with operations targeted to begin by the end of 2025. The round was led by Capricorn Investment Group and Temasek Holdings.

3-3. Future Outlook

We will establish a commercial-scale production system by 2030 and expand partnerships with steel manufacturers. Leveraging the global decarbonization trend, we will respond to the rapid surge in demand.

4. Altruist: $152 Million Raised—Self-Clearing Fintech Revolution

4-1. Company Overview

Los Angeles-based Altruist provides a self-clearing brokerage platform that offers an end-to-end solution for investment advisors, covering everything from account opening to trading, reporting, and billing.

4-2. Round Highlights

Raised $152 million in a Series E round led by GIC, reaching a valuation of $1.9 billion. Following the previous year, the company has once again achieved a significant increase in valuation.

4-3. Future Outlook

By accelerating the expansion of its client base and the introduction of new features, the company aims to become the industry standard as a 'one-stop, next-generation asset management platform.'

5. Manychat: $140 Million Raised—The Wave of Agent-Based Chatbots

5-1. Company Overview

Palo Alto-based Manychat provides conversational AI and automation tools for social and messaging platforms. It currently processes billions of messages annually and is used by over 1 million businesses.

5-2. Round Highlights

Secured $140 million in growth capital led by Summit Partners. While maintaining profitability, the company plans to invest in global expansion, marketing, and the enhancement of its AI agent capabilities.

5-3. Future Outlook

Through enhanced multilingual support and the development of new channels, the company expects to solidify its foothold in Asian and European markets and expand sales in the enterprise segment.

6. Electra.aero: $115 Million Raised—The Challenge of Ultra-Short Takeoff Hybrid Aircraft

6-1. Company Overview

Manassas, Virginia-based Electra.aero is developing the EL9, a hybrid-electric aircraft capable of taking off and landing on a 150-foot (approx. 45m) runway. It has already secured over 2,200 pre-orders (totaling $10 billion in value).

6-2. Round Highlights

Raised $115 million in a Series B round led by Prysm Capital. The funds will be used to initiate pre-production and certification processes.

6-3. Future Outlook

With an eye on the first flight in 2026, we are building commercial models for regional airports and short-distance intercity transport. We aim to achieve both CO2 reduction and increased efficiency in intercity travel.

7. Biolinq: $100 million raised—Innovating health monitoring with multi-analyte biosensors

7-1. Company Overview

Biolinq develops multi-analyte biosensors capable of detecting multiple metabolic indicators on the skin in real-time. Applications in diabetes and cardiovascular disease management are expected.

7-2. Funding Round Highlights

Raised $100 million in a Series C round led by Alpha Wave Ventures, bringing the total funding to $276 million. The investment will go toward clinical trials and manufacturing scale-up.

7-3. Future Outlook

We aim to launch commercial services in 2027 by building partnerships for FDA approval and advancing OEM agreements with major medical device manufacturers.

8. Dataminr: $100 million raised—Deepening the real-time information detection platform

8-1. Company Overview

Founded in 2009, Dataminr provides an analytics platform that detects risks and critical events from public data in real-time. ARR has grown to nearly $200 million.

8-2. Funding Round Highlights

Secured $100 million in convertible notes from a Fortress Investment Group-affiliated fund. Following last month's $85 million funding, the cash position has been strengthened once again.

8-3. Future Outlook

We will promote market share expansion in security and reputation management for government agencies and financial institutions, as well as the advancement of AI algorithms.

9. Flow: Over $100 million raised—A bet on the fusion of residential real estate and technology

9-1. Company Overview

Flow, led by former WeWork founder Adam Neumann, is developing a new ownership and rental platform in the residential real estate market. It currently boasts a $2 billion valuation.

9-2. Characteristics of the Funding Round

Raised over $100 million with participation from Andreessen Horowitz (a16z) and others. This is the first major funding since Series A, conducted in coordination with existing investors.

9-3. Future Outlook

The company will address the diversification of housing demand by providing flexible rental contract models utilizing technology and revenue maximization tools for property owners.

10. Endor Labs: $93 Million Raised—The Next-Generation Standard for Application Security

10-1. Company Overview

Founded in 2022, Endor Labs automates application security in Kubernetes/microservices environments. Its developer-friendly tools are gaining widespread support.

10-2. Characteristics of the Funding Round

Secured $93 million in a Series B round led by DFJ Growth. Total funding has reached $188 million.

10-3. Future Outlook

The company aims to accelerate its expansion into the global security market by focusing on deep integration into CI/CD pipelines and the adoption of shift-left security.

Related Articles