--- url: 'https://qubit.capital/blog/us-series-b-plus-weekly-funding-roundup-mar-13-20-2026' title: 'US Series B+ Weekly Funding Roundup (Mar 13-20, 2026): $635.0M Raised Across 6 Deals' author: name: Mayur Toshniwal url: 'https://qubit.capital/blog/author/mayur' date: '2026-03-20T09:00:22+05:30' modified: '2026-03-20T15:19:27+05:30' type: post summary: 'Six US late-stage deals raised $635M this week, led by Cloaked''s $375M privacy mega-round and XBOW''s $120M unicorn raise in autonomous cybersecurity.' categories: - Weekly Funding Roundup image: 'https://qubit.capital/wp-content/uploads/2026/03/featured-us-series-bplus-64378.webp' published: true --- # US Series B+ Weekly Funding Roundup (Mar 13-20, 2026): $635.0M Raised Across 6 Deals US late-stage funding this week totaled $635 million across six deals, with cybersecurity commanding the lion’s share. Three of the six rounds went to security startups, reflecting sustained investor conviction that AI-era threats demand entirely new defensive architectures. The week’s standout was Cloaked’s $375 million raise — one of the largest consumer privacy rounds on record — signaling that personal data protection has graduated from niche concern to platform-scale opportunity. Beyond security, the deals reveal a broader theme: investors are backing companies that bring transparency and automation to opaque, legacy-dominated industries. From healthcare pricing to patent drafting to maritime electrification, this week’s founders are attacking markets where manual processes and information asymmetry have persisted for decades. The capital is flowing to teams with deep domain expertise and clear regulatory or data moats. Weekly Funding Roundup MAR 13-20, 2026 $635M TOTAL RAISED 6DEALS CLOSED MixedSTAGE $106MAVG DEAL SIZE USTOP REGION BY STAGE Series B + Growth Financing$375M59% Series C$210M33% Series C Extension$25M4% Series B$25M4% BY SECTOR CloakedCybersecurity / Consumer Privacy$375M XBOWCybersecurity$120M Arc Boat CompanyClimate / Electric Vehicles$50M Turquoise HealthHealthtech$40M EclypsiumCybersecurity$25M DeepIPAI / Legal Tech$25M Table of Contents - [1. Cloaked Raises $375M for Consumer Privacy Platform](#1-cloaked-raises-$375m-for-consumer-privacy-platform) [Deal Overview](#deal-overview) - [Investor Profile](#investor-profile) - [Company and Leadership](#company-and-leadership) - [Problem and Opportunity](#problem-and-opportunity) - [Product and Technology](#product-and-technology) - [Use of Proceeds and Vision](#use-of-proceeds-and-vision) - [Market Context](#market-context) - [2. XBOW Raises $120M Series C for Autonomous Offensive Security](#2-xbow-raises-$120m-series-c-for-autonomous-offensive-security) [Deal Overview](#deal-overview-1) - [Investor Profile](#investor-profile-1) - [Company and Leadership](#company-and-leadership-1) - [Problem and Opportunity](#problem-and-opportunity-1) - [Product and Technology](#product-and-technology-1) - [Use of Proceeds and Vision](#use-of-proceeds-and-vision-1) - [Market Context](#market-context-1) - [3. Arc Boat Company Raises $50M Series C for Electric Vessels](#3-arc-boat-company-raises-$50m-series-c-for-electric-vessels) [Deal Overview](#deal-overview-2) - [Investor Profile](#investor-profile-2) - [Company and Leadership](#company-and-leadership-2) - [Problem and Opportunity](#problem-and-opportunity-2) - [Product and Technology](#product-and-technology-2) - [Use of Proceeds and Vision](#use-of-proceeds-and-vision-2) - [Market Context](#market-context-2) - [4. Turquoise Health Raises $40M Series C for Healthcare Pricing Transparency](#4-turquoise-health-raises-$40m-series-c-for-healthcare-pricing-transparency) [Deal Overview](#deal-overview-3) - [Investor Profile](#investor-profile-3) - [Company and Leadership](#company-and-leadership-3) - [Problem and Opportunity](#problem-and-opportunity-3) - [Product and Technology](#product-and-technology-3) - [Use of Proceeds and Vision](#use-of-proceeds-and-vision-3) - [Market Context](#market-context-3) - [5. Eclypsium Raises $25M Series C Extension for Hardware Security](#5-eclypsium-raises-$25m-series-c-extension-for-hardware-security) [Deal Overview](#deal-overview-4) - [Investor Profile](#investor-profile-4) - [Company and Leadership](#company-and-leadership-4) - [Problem and Opportunity](#problem-and-opportunity-4) - [Product and Technology](#product-and-technology-4) - [Use of Proceeds and Vision](#use-of-proceeds-and-vision-4) - [Market Context](#market-context-4) - [6. DeepIP Closes $25M Series B for AI Patent Drafting](#6-deepip-closes-$25m-series-b-for-ai-patent-drafting) [Deal Overview](#deal-overview-5) - [Investor Profile](#investor-profile-5) - [Company and Leadership](#company-and-leadership-5) - [Problem and Opportunity](#problem-and-opportunity-5) - [Product and Technology](#product-and-technology-5) - [Use of Proceeds and Vision](#use-of-proceeds-and-vision-5) - [Market Context](#market-context-5) - [Lessons for Founders](#lessons-for-founders) ## 1. Cloaked Raises $375M for Consumer Privacy Platform ### Deal Overview - **Stage:** Series B + Growth Financing - **Sector:** Cybersecurity / Consumer Privacy - **Geography:** United States - **Round Size:** $375 million ### Investor Profile General Catalyst led the growth financing through its Customer Value Fund, joined by Lux Capital, Liberty City Ventures, Human Capital, and Marquee Ventures. The cap table includes strategic investors DuckDuckGo, LG Technology Ventures, Assurant Ventures, and the NFL Players Association — a roster that spans privacy-native brands, consumer electronics, insurance, and professional athletes who understand personal exposure. ### Company and Leadership [Cloaked](https://www.cloaked.app) was founded in 2020 by brothers Arjun and Abhijay Bhatnagar. What started as a tool for disposable digital identities has grown into a comprehensive privacy platform with over 350,000 paying users — a base that grew 10x in the past year. ### Problem and Opportunity Every online account is a data leak waiting to happen. Consumers hand over real emails, phone numbers, and passwords to dozens of services, each one a potential breach point. As AI makes phishing and identity theft more sophisticated, the surface area for personal data exploitation is expanding faster than traditional security tools can cover. ### Product and Technology Cloaked offers disposable identities — unique emails, phone numbers, and passwords generated for each service a user signs up for. The platform also includes data removal services, identity theft insurance, a VPN, dark web monitoring, and AI-powered spam-call screening. The company is now expanding into enterprise privacy solutions, building on the consumer data it has gathered about how personal information is exploited at scale. ### Use of Proceeds and Vision The capital will fund expansion of the consumer offering and a push into enterprise markets. Cloaked is positioning itself as the definitive privacy platform for the AI era, with a dual consumer-enterprise moat that gets stronger as more users adopt disposable identities and generate signal about emerging threats. ### Market Context Digital privacy is booming as AI-powered threats intensify. Cloaked competes across segments — DeleteMe in data removal, 1Password in identity management, traditional VPN providers — but its bundled platform approach is unique. The sheer size of this round signals that investors see privacy not as a feature but as a standalone platform category. ## 2. XBOW Raises $120M Series C for Autonomous Offensive Security ### Deal Overview - **Stage:** Series C - **Sector:** Cybersecurity - **Geography:** United States - **Round Size:** $120 million - **Valuation:** $1 billion+ (unicorn) ### Investor Profile DFJ Growth led the round, with participation from Sequoia Capital, Northzone, Sofina, Alkeon Capital, Altimeter, and NFDG Ventures. Ramin Sayar, former Sumo Logic CEO and DFJ Growth Venture Partner, joined the board. Sequoia’s continued backing at unicorn valuation underscores confidence in the autonomous security thesis. ### Company and Leadership [XBOW](https://xbow.com) was founded by Oege de Moor, creator of GitHub Copilot and GitHub Advanced Security, alongside core engineers from the original Copilot team. The company has reached the top of the HackerOne leaderboard and is deployed at some of the most security-forward companies globally. ### Problem and Opportunity Traditional penetration testing is slow, expensive, and periodic. Companies hire security firms for point-in-time assessments, leaving gaps between tests where new vulnerabilities go undetected. As software complexity grows, manual testing simply cannot keep pace with the attack surface. ### Product and Technology XBOW’s platform combines AI reasoning with offensive security workflows to deliver expert-level vulnerability testing at machine speed. It autonomously probes applications for security flaws, mimicking the approach of elite human hackers but operating continuously and at scale. The platform’s autonomous discovery generates an ever-expanding knowledge base of attack patterns and exploit chains. ### Use of Proceeds and Vision Funds will scale operations, expand enterprise adoption, and advance autonomous hacking capabilities. XBOW is betting that autonomous offensive security will become standard practice — every company will deploy an AI hacker to find vulnerabilities before adversaries do. ### Market Context The offensive security market exceeds $5 billion and is growing rapidly. Traditional firms like NCC Group and Rapid7 face disruption from AI-powered alternatives. Competitors include RunSybil ($40M seed this week), Pentera, and HackerOne. XBOW’s unicorn status and Sequoia backing position it as the category leader. ## 3. Arc Boat Company Raises $50M Series C for Electric Vessels ### Deal Overview - **Stage:** Series C - **Sector:** Climate / Electric Vehicles - **Geography:** United States (Los Angeles) - **Round Size:** $50 million ### Investor Profile Eclipse Ventures led, with a16z, Menlo Ventures, Lowercarbon Capital, Necessary Ventures, and Offline Ventures participating. The mix of deep-tech (Eclipse), generalist (a16z, Menlo), and climate-focused (Lowercarbon) investors reflects Arc’s positioning across consumer, commercial, and defense markets. ### Company and Leadership [Arc Boat Company](https://www.arcboats.com) was founded in 2021 in Los Angeles by veterans of Rivian, SpaceX, and Tesla. Total funding now stands at $160 million. The company recently secured a $160 million order for electric tugboats and a hybrid project with Snow & Co. ### Problem and Opportunity Maritime is one of the last major transportation sectors to electrify. Tightening IMO emissions regulations and rising fuel costs are pushing vessel operators toward cleaner propulsion, but legacy marine manufacturers have been slow to deliver viable electric options at commercial scale. ### Product and Technology Arc designs and manufactures electric vessels, starting with premium consumer boats and expanding into commercial workboats — tugboats, ferries — and defense propulsion systems. The team leverages world-class EV powertrain and manufacturing expertise from the automotive and aerospace industries, working with established shipyards for custom vessel design. ### Use of Proceeds and Vision The company is hiring across production, engineering, and go-to-market teams to scale operations for commercial vessel production and defense contracts. Arc is betting that maritime is on the cusp of the same electrification curve that reshaped road transport. ### Market Context The global marine propulsion market is projected to reach $15 billion by 2030. Competitors include Candela (Swedish hydrofoil boats), Pure Watercraft, and legacy manufacturers adding electric options. Arc’s defense pivot opens a large government procurement opportunity that few startups are positioned to capture. ## 4. Turquoise Health Raises $40M Series C for Healthcare Pricing Transparency ### Deal Overview - **Stage:** Series C - **Sector:** Healthtech - **Geography:** United States - **Round Size:** $40 million ### Investor Profile Investor details for this round were not publicly disclosed. Prior backers include prominent healthcare and enterprise investors who have supported the company’s mission to bring pricing transparency to one of America’s most opaque industries. ### Company and Leadership [Turquoise Health](https://turquoise.health) has built a healthcare pricing and payments platform that aggregates and makes sense of hospital pricing data — information that hospitals have only recently been required to disclose publicly. ### Problem and Opportunity Healthcare pricing in the United States is notoriously opaque. Even with federal transparency mandates requiring hospitals to publish their prices, the data is fragmented, inconsistent, and nearly impossible for payers, providers, or patients to use effectively. This information asymmetry costs the system billions annually. ### Product and Technology Turquoise Health aggregates hospital pricing data into a structured, searchable platform that enables payers, providers, and employers to compare costs, negotiate rates, and make informed decisions. The platform transforms raw compliance filings into actionable pricing intelligence across procedures, facilities, and geographies. ### Use of Proceeds and Vision The Series C will accelerate product development and market expansion as Turquoise builds the data infrastructure layer for healthcare pricing. The company is positioned to become the definitive source of truth for what healthcare actually costs in the US. ### Market Context US healthcare spending exceeds $4.5 trillion annually, and pricing inefficiency is a core driver of waste. Federal transparency regulations are creating a massive new data layer that companies like Turquoise can structure and monetize. The intersection of regulatory tailwinds and AI-powered data processing makes this a compelling category. ## 5. Eclypsium Raises $25M Series C Extension for Hardware Security ### Deal Overview - **Stage:** Series C Extension - **Sector:** Cybersecurity - **Geography:** United States (Portland, OR) - **Round Size:** $25 million ### Investor Profile Investor details for this extension were not publicly disclosed. The company has attracted cybersecurity-focused investors who recognize that firmware and hardware remain among the most underprotected layers of the enterprise stack. ### Company and Leadership [Eclypsium](https://eclypsium.com) is a Portland-based cybersecurity startup that has built a specialized platform for hardware and firmware security — a layer that sits beneath the operating system and is invisible to most traditional security tools. ### Problem and Opportunity Firmware attacks are among the most dangerous and least detected threats in cybersecurity. Compromised firmware can persist through OS reinstalls, evade endpoint detection, and give attackers persistent access to critical infrastructure. As supply chain attacks become more sophisticated, hardware-level security is no longer optional. ### Product and Technology Eclypsium’s platform provides visibility into firmware and hardware across enterprise environments — servers, laptops, network equipment, and IoT devices. It detects vulnerabilities, misconfigurations, and threats at the hardware level that traditional endpoint security tools miss entirely. ### Use of Proceeds and Vision The Series C extension will fund platform expansion and go-to-market scaling as enterprises and government agencies increasingly recognize firmware as a critical attack surface. Eclypsium is building the security layer for the hardware stack. ### Market Context Government mandates around supply chain security (NIST, CISA) are driving enterprise demand for firmware visibility. The hardware security market is growing as organizations realize that software-only security leaves a massive blind spot. Eclypsium operates in a specialized niche with few direct competitors. ## 6. DeepIP Closes $25M Series B for AI Patent Drafting ### Deal Overview - **Stage:** Series B - **Sector:** AI / Legal Tech - **Geography:** United States - **Round Size:** $25 million ### Investor Profile Investor details were not publicly disclosed for this round. The company has drawn interest from investors at the intersection of AI and professional services — a category seeing rapid growth as large language models prove capable of handling complex, domain-specific document creation. ### Company and Leadership [DeepIP](https://deepip.com) has built an AI-powered patent drafting platform that streamlines one of the most time-intensive and specialized processes in intellectual property law. ### Problem and Opportunity Patent drafting is expensive, slow, and bottlenecked by a limited pool of specialized attorneys. A single patent application can take 40-80 hours to draft and cost $15,000-$30,000. For companies filing dozens or hundreds of patents annually, the cost and timeline compound into a serious strategic constraint. ### Product and Technology DeepIP uses AI to automate the patent drafting process — from prior art analysis to claims construction to specification writing. The platform handles the structured, technical nature of patent documents while maintaining the precision required for legal filings. This accelerates the process from weeks to days while reducing costs significantly. ### Use of Proceeds and Vision The Series B will fund product development and market expansion as DeepIP scales its platform across law firms and corporate IP departments. The company is positioned to capture a meaningful share of the global patent services market as AI transforms legal workflows. ### Market Context The global patent analytics market is growing steadily, driven by increasing IP filings worldwide — over 3.5 million patent applications were filed globally in 2024. AI-powered legal tools are gaining traction across contract review, litigation, and now patent drafting. DeepIP targets a specialized niche where accuracy and domain expertise create high barriers to entry. ## Lessons for Founders - **Consumer traction unlocks enterprise expansion.** Cloaked’s 350,000 paying users gave them real-world data on privacy threats that now powers their enterprise pivot. Building consumer-first can be a legitimate path to B2B if the data compounds. - **Founder-domain fit commands premium valuations.** XBOW’s founder created GitHub Copilot. Arc’s team came from Rivian, SpaceX, and Tesla. Investors are paying up for founders who bring world-class domain expertise, not just startup energy. - **Regulatory tailwinds are investable moats.** Turquoise Health and Eclypsium both benefit from government mandates (price transparency, supply chain security) that force enterprises to adopt new tools. Building ahead of regulation is a timing play that pays off when compliance becomes mandatory. - **Cybersecurity is fragmenting into specialized categories.** This week alone saw funding for privacy (Cloaked), offensive testing (XBOW), and firmware security (Eclypsium). The era of one-size-fits-all security is over — investors are backing focused platforms that own specific layers of the stack. - **Electrifying legacy industries requires patience and capital.** Arc’s $160M in total funding and $160M tugboat order show that hardware-intensive climate plays need significant capital but can generate substantial revenue visibility once commercial contracts land.