On Tuesday, June 3, 2025, the venture capital scene is vibrant, showcasing significant funding activities across diverse tech sectors. Today’s developments highlight innovations in brain-computer interfaces, cross-border fintech, cybersecurity, and synthetic biology. Among the prominent announcements is Neuralink’s impressive $650 million Series E funding, aimed at advancing neurotechnology. Additionally, Impulse Space is capturing attention with a $300 million investment to enhance orbital satellite repositioning capabilities, marking a dynamic day in the startup ecosystem.
Funding Highlights
Neuralink stands out with its substantial $650 million funding round, supported by leading Silicon Valley investors. Space-tech startup Impulse Space follows with $300 million dedicated to scaling its orbital transfer vehicles. European fintech firm Scalable Capital has secured €155 million (approximately $175 million) for expanding its retail investing platform, while Israel’s Zero Networks raised $55 million to bolster cybersecurity for enterprises. In other noteworthy deals, Speedata attracted $44 million for its innovative data processing hardware, and Antheia garnered $56 million to bioengineer essential drug ingredients.
Investor Activity
Major venture capitalists including Sequoia, Thrive Capital, Highland Europe, Index Ventures, and SoftBank’s SB Payment Service have actively participated today. Across various investment stages, these firms are focusing on practical applications of AI, cutting-edge biotech, and robust cybersecurity frameworks. The breadth of today’s funding landscape indicates a vibrant market that is not only alive but thriving.
Here’s a detailed breakdown of the ten notable deals tracked today, including investor insights, startup ambitions, and funding specifics.
Speedata Secures $44M Series B for Advanced Data Analytics
Tel Aviv-based Speedata, which specializes in developing a unique Analytics Processing Unit (APU) tailored for big data and AI workloads, has announced a $44 million Series B funding round. The investment was led by existing backers, including Walden Catalyst Ventures, 83North, Koch Disruptive Technologies, Pitango First, and Viola Ventures, bringing the company’s total funds raised to $114 million. Speedata’s APU aims to address analytics bottlenecks at the hardware level, significantly enhancing performance. The funding will be allocated towards product development, commercialization of its chip architecture targeting platforms like Apache Spark, and expanding global sales and operations.
Funding Details:
Startup: Speedata
Investors: Walden Catalyst Ventures (lead), 83North, Koch Disruptive Technologies, Pitango First, Viola Ventures (also strategic: Lip-Bu Tan, Eyal Waldman)
Amount Raised: $44M
Total Raised: $114M
Funding Stage: Series B
Funding Date: June 3, 2025
Ciroos Emerges with $21M Seed Round for AI Operational Tools
Ciroos, an AI-focused startup creating operational tools for teams, has launched from stealth mode with $21 million in funding for its “SRE Teammate” AI assistant, designed for DevOps and site reliability engineering workflows. Led by Energy Impact Partners, the round also included participation from angel investors. The company aims to improve incident management for enterprise operations teams, claiming its AI agent can accelerate issue resolution by up to 90%. The funding will support product launch finalization, talent recruitment, and market entry initiatives.
Funding Details:
Startup: Ciroos
Investors: Energy Impact Partners (lead), angel investors
Amount Raised: $21M
Total Raised: $21M
Funding Stage: Seed
Funding Date: June 3, 2025
Nomupay Raises $40M Series C for Simplified Cross-Border Payments
Irish fintech Nomupay has successfully raised $40 million in a Series C funding round led by SB Payment Service (a SoftBank entity), now valuing the firm at $290 million. The platform enables merchants to accommodate various local payment methods across Asia, Europe, the Middle East, and the U.S. without the necessity of local entities. Following a previous $37 million in Series B financing five months ago, the new funds will further Nomupay’s regional expansion and payment method diversification, especially targeting Japanese markets.
Funding Details:
Startup: Nomupay
Investors: SB Payment Service (SoftBank, lead)
Amount Raised: $40M
Total Raised: ~$120M
Funding Stage: Series C
Funding Date: June 3, 2025
Impulse Space Raises $300M Late-Stage Funding for Satellite Transfers
U.S.-based Impulse Space, founded by former SpaceX engineer Tom Mueller, has announced a $300 million funding round led by Linse Capital. The company designs orbital transfer vehicles, or “space tugs,” that can accurately reposition satellites in orbit. The latest funding brings Impulse’s total capital raised to $525 million. As demand surges for rideshare missions, the funds will be used to scale production of its Mira and Helios vehicles and expand engineering and manufacturing teams, as well as advance R&D for extended orbital transport in various sectors.
Funding Details:
Startup: Impulse Space
Investors: Linse Capital (lead)
Amount Raised: $300M
Total Raised: $525M
Funding Stage: Late Stage
Funding Date: June 3, 2025
Scalable Capital Secures €155M Growth Round in Digital Wealth Management
Scalable Capital, a leader in European digital investment, has closed its largest funding round yet, raising €155 million (about $175 million). The round was co-led by Sofina and Noteus Partners, with participation from previous investors Balderton Capital, Tencent, and HV Capital, elevating Scalable’s total funding to over €470 million (more than $535 million). The new funds will facilitate growth-focused initiatives in product offerings and marketing to engage more users, particularly enhancing family-oriented financial planning features and expanding into new markets.
Funding Details:
Startup: Scalable Capital
Investors: Sofina (lead), Noteus Partners (lead), Balderton Capital, Tencent, HV Capital
Amount Raised: $175M (≈€155M)
Total Raised: >$535M (≈€470M)
Funding Stage: Series E
Funding Date: June 3, 2025
Antheia Raises $56M Series C to Boost Synthetic Biology Production
Antheia, a biotech firm based in Menlo Park, has raised $56 million in a Series C round to enhance its synthetic biology platform for pharmaceutical production. The financing, led by the Global Health Investment Corporation and Singapore’s EDBI, positions Antheia to engineer yeast cells for efficient drug ingredient production. The investment will expedite the commercialization of key ingredients, from thebaine to other high-demand materials, while expanding manufacturing capacity within the U.S. and targeting the Asian market for future product launches.
Funding Details:
Startup: Antheia
Investors: Global Health Investment Corporation (lead), EDBI (lead)
Amount Raised: $56M
Total Raised: ~$129M
Funding Stage: Series C
Funding Date: June 3, 2025
Neuralink Closes $650M Series E for Advancements in Neurotechnology
Neuralink, the neurotechnology venture led by Elon Musk, has announced a closing of $650 million in Series E funding featuring several prominent investors including ARK Invest, DFJ Growth, Founders Fund, and Sequoia Capital, among others. The funding will support the company’s efforts to develop brain-computer interface implants aimed at helping individuals with paralysis and sensory impairments gain control over devices using their thoughts. Neuralink is already advancing human trials and has achieved FDA breakthrough designations; this infusion of capital will hasten the path to market for its BCI technology.
Funding Details:
Startup: Neuralink
Investors: ARK Invest, DFJ Growth, Founders Fund, G42, Human Capital, Lightspeed, Qatar Investment Authority, Sequoia Capital, Thrive Capital, Valor Equity, Vy Capital
Amount Raised: $650M
Total Raised: $650M (this round)
Funding Stage: Series E
Funding Date: June 3, 2025
Zero Networks Secures $55M for Cybersecurity Solutions
Israeli cybersecurity firm Zero Networks has successfully raised $55 million in mid-stage funding led by Highland Europe, with contributions from F2 Venture Capital, PICO Venture Partners, Venrock, and USVP. This latest funding contributes to over $100 million in total financing for Zero Networks. The startup specializes in network access control and microsegmentation technology, which helps organizations mitigate cyber threats by confining breaches. This funding will allow Zero Networks to expand its operations globally, addressing the growing need for robust network defense solutions.
Funding Details:
Startup: Zero Networks
Investors: Highland Europe (lead), F2 Venture Capital, PICO Venture Partners, Venrock, U.S. Venture Partners
Amount Raised: $55M
Total Raised: >$100M
Funding Stage: Series B
Funding Date: June 3, 2025
Stable Money Raises $20M Series B for Fixed-Income Investments
Stable Money, a fintech platform offering access to high-yield cash and fixed-income products for retail investors, has raised $20 million in Series B funding led by Fundamentum Partnership. The fresh capital will facilitate product enhancement, operational scale, and customer acquisition efforts in India and Southeast Asia. The company aims to streamline access to investment products traditionally viewed as complex, enabling users to navigate a range of fixed-income solutions more transparently.
Funding Details:
Startup: Stable Money
Investors: Fundamentum Partnership (lead)
Amount Raised: $20M
Total Raised: $20M
Funding Stage: Series B
Funding Date: June 3, 2025
Wordsmith AI Secures $25M Series A for Legal Automation
Legal tech startup Wordsmith AI has raised $25 million in a Series A funding round led by Index Ventures. The firm offers an AI platform that embeds numerous “legal AI agents” to automate routine legal tasks for businesses. The investment will enable Wordsmith to enhance its technology and expand its client base, with notable customers like Deliveroo and Remote. With this funding, the startup aims to revolutionize how companies handle legal and compliance processes.
Funding Details:
Startup: Wordsmith AI
Investors: Index Ventures (lead)
Amount Raised: $25M
Total Raised: $30M
Funding Stage: Series A
Funding Date: June 3, 2025
Funding Summary Table
Startup | Investors (Lead & Notable) | Amount Raised | Total Raised | Funding Stage | Funding Date
Speedata | Walden Catalyst Ventures (lead), 83North, Koch Disruptive Tech, Pitango, Viola, Lip-Bu Tan, Eyal Waldman | $44M | $114M | Series B | June 3, 2025
Ciroos | Energy Impact Partners (lead), angel investors | $21M | $21M | Seed | June 3, 2025
Nomupay | SB Payment Service (SoftBank, lead) | $40M | ~$120M | Series C | June 3, 2025
Impulse Space | Linse Capital (lead) | $300M | $525M | Late Stage | June 3, 2025
Scalable Capital | Sofina (lead), Noteus Partners (lead), Balderton, Tencent, HV Capital | $175M | >$535M | Series E | June 3, 2025
Antheia | Global Health Investment Corp. (lead), EDBI (lead) | $56M | ~$129M | Series C | June 3, 2025
Neuralink | ARK Invest, DFJ Growth, Founders Fund, G42, Human Capital, Lightspeed, QIA, Sequoia, Thrive, Valor, Vy | $650M | $650M | Series E | June 3, 2025
Zero Networks | Highland Europe (lead), F2 VC, PICO VP, Venrock, U.S. Venture Partners | $55M | >$100M | Series B | June 3, 2025
Stable Money | Fundamentum Partnership (lead) | $20M | $20M | Series B | June 3, 2025
Wordsmith AI | Index Ventures (lead) | $25M | $30M | Series A | June 3, 2025