--- url: 'https://qubit.capital/blog/us-series-a-weekly-funding-roundup-week-4-march-2026-2' title: 'US Series A Weekly Funding Roundup (Mar 20-27, 2026): $304.0M Raised Across 9 Deals' author: name: Sagar Agrawal url: 'https://qubit.capital/blog/author/sagar' date: '2026-03-27T04:36:00+05:30' modified: '2026-03-27T15:47:55+05:30' type: post summary: 'Nine US Series A rounds totaling $304M this week, led by Latent Health and Gimlet Labs at $80M each. Healthcare AI, inference infrastructure, and regulated-industry automation dominate.' categories: - Weekly Funding Roundup image: 'https://qubit.capital/wp-content/uploads/2026/03/featured-us-series-a-64780.webp' published: true --- # US Series A Weekly Funding Roundup (Mar 20-27, 2026): $304.0M Raised Across 9 Deals US Series A activity surged this week with nine companies raising a combined $304 million. Two deals tied for the top spot at $80 million each: Latent Health, which is automating prior authorizations inside hospital EHRs, and Gimlet Labs, which built a multi-silicon inference cloud to break NVIDIA’s CUDA lock-in. AI-native companies dominated the roster, but the use cases ranged widely, from energy regulatory intelligence to post-discharge patient care to identity security for software pipelines. The Series A cohort sat between a quieter seed week, where three US startups raised $26.5 million, and a busy late-stage market that saw seven US Series B+ rounds pull in $609 million. That spread tells a familiar story: capital is flowing to companies that have proven early traction and now need to scale distribution. Every deal on this list has a clear wedge into a specific buyer, whether that’s a hospital system, an insurance carrier, or an AI lab burning through GPU hours. Weekly Funding Roundup MAR 20-27, 2026 $304M TOTAL RAISED 9DEALS CLOSED 100%SERIES A $33.8MAVG DEAL SIZE USTOP REGION BY STAGE Series A$304M100% BY SECTOR Latent HealthHealthtech$80M Gimlet LabsAI Infrastructure$80M Highlight AIAI / Productivity$40M NotchAI / Enterprise$30M HalcyonClimate / Energy$21M BlueFlag SecurityCybersecurity$16.5M Dimer HealthHealthtech$13.5M GlobalComixMedia / Entertainment$13M TraydSaaS / Construction$10M Table of Contents - [1. Latent Health Raises $80M for Clinical AI](#1-latent-health-raises-$80m-for-clinical-ai) [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. Gimlet Labs Raises $80M for Multi-Silicon AI Inference](#2-gimlet-labs-raises-$80m-for-multi-silicon-ai-inference) [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. Highlight AI Raises $40M for Team Intelligence Layer](#3-highlight-ai-raises-$40m-for-team-intelligence-layer) [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. Notch Raises $30M for AI in Regulated Industries](#4-notch-raises-$30m-for-ai-in-regulated-industries) [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. Halcyon Raises $21M for Energy Regulatory Intelligence](#5-halcyon-raises-$21m-for-energy-regulatory-intelligence) [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. BlueFlag Security Raises $16.5M for SDLC Identity Security](#6-blueflag-security-raises-$16-5m-for-sdlc-identity-security) [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) - [7. Dimer Health Raises $13.5M for Transitional Care](#7-dimer-health-raises-$13-5m-for-transitional-care) [Deal Overview](#deal-overview-6) - [Investor Profile](#investor-profile-6) - [Company and Leadership](#company-and-leadership-6) - [Problem and Opportunity](#problem-and-opportunity-6) - [Product and Technology](#product-and-technology-6) - [Use of Proceeds and Vision](#use-of-proceeds-and-vision-6) - [Market Context](#market-context-6) - [8. GlobalComix Raises $13M for Digital Comics](#8-globalcomix-raises-$13m-for-digital-comics) [Deal Overview](#deal-overview-7) - [Investor Profile](#investor-profile-7) - [Company and Leadership](#company-and-leadership-7) - [Product and Technology](#product-and-technology-7) - [Use of Proceeds and Vision](#use-of-proceeds-and-vision-7) - [Market Context](#market-context-7) - [9. Trayd Raises $10M for Specialty Contractor Back Office](#9-trayd-raises-$10m-for-specialty-contractor-back-office) [Deal Overview](#deal-overview-8) - [Investor Profile](#investor-profile-8) - [Company and Leadership](#company-and-leadership-8) - [Problem and Opportunity](#problem-and-opportunity-7) - [Product and Technology](#product-and-technology-8) - [Use of Proceeds and Vision](#use-of-proceeds-and-vision-8) - [Market Context](#market-context-8) - [Lessons For Founders](#lessons-for-founders) ## 1. Latent Health Raises $80M for Clinical AI ### Deal Overview - **Stage:** Series A - **Sector:** Healthtech - **Geography:** San Francisco, CA - **Round size:** $80M - **Total raised:** ~$80.5M ### Investor Profile Spark Capital led the round alongside Transformation Capital, Conviction, McKesson Ventures, General Catalyst, and Y Combinator. McKesson’s participation stands out: as the largest pharmaceutical distributor in the US, its venture arm gives Latent Health a direct channel into pharmacy network integration. General Catalyst’s involvement adds a second tier-one generalist to the cap table. ### Company and Leadership [Latent Health](https://www.latenthealth.com) was founded in 2022 by Sriram (Sri) Somasundaram and Rishabh Jain. Sri built deep reinforcement learning systems with publications at ICML, ICLR, and Nature, and was on the founding team at Hebbia, where he operationalized LLMs for major financial institutions. The company came through Y Combinator’s Winter 2023 batch. ### Problem and Opportunity Prior authorization is one of the most expensive bottlenecks in US healthcare. The AMA estimates physicians spend over 14 hours per week on PA paperwork. Drugs get approved, but patients never receive them because of administrative friction. New CMS regulations effective in 2026 require faster PA decisions, creating urgent demand for automation. ### Product and Technology Latent Health’s Clinical Reasoning Engine sits inside the EHR, reads structured and unstructured patient data, interprets drug criteria and payer guidelines (including NCCN), and maps clinical evidence to prior authorization requirements. It integrates via FHIR-compatible APIs directly into systems like Epic. The company already works with 50% of the top 20 US health systems, covering over 2 million patients across 45+ institutions including Yale New Haven, UCSF, UCLA Health, and Mount Sinai. ### Use of Proceeds and Vision Funds will go toward expanding the health system footprint nationally, deepening the platform that connects hospitals, payers, pharmacies, and patients, and growing the engineering and clinical teams. ### Market Context Prior authorization wastes billions annually and delays treatment for patients who need it most. With regulatory tailwinds from CMS and strategic backing from McKesson, Latent Health is positioned to become the default automation layer between clinical decisions and therapy access. ## 2. Gimlet Labs Raises $80M for Multi-Silicon AI Inference ### Deal Overview - **Stage:** Series A - **Sector:** AI Infrastructure - **Geography:** San Francisco, CA - **Round size:** $80M - **Total raised:** $92M ### Investor Profile Menlo Ventures and Eclipse Ventures co-led, joined by Prosperity7 (Aramco’s tech fund), Triatomic, and Factory (which also led the seed). Eclipse’s deep-tech focus and Prosperity7’s infrastructure mandate make them natural fits for a company building at the hardware-software boundary. ### Company and Leadership [Gimlet Labs](https://gimletlabs.ai) was in stealth from 2023 until its public launch in October 2025. CEO Zain Asgar is a Stanford adjunct professor, former GPU architect at NVIDIA, and former Engineering Lead at Google AI. He previously co-founded Pixie Labs, which New Relic acquired in 2020. The team of 30 was already generating eight-figure revenue at launch. ### Problem and Opportunity AI companies are locked into NVIDIA hardware because of CUDA, not because it’s always the best option. GPU lead times stretch to a year. DRAM shortages are getting worse. Meanwhile, AMD, Intel, Cerebras, and other chipmakers are shipping capable silicon that sits underutilized because there’s no unified software layer to orchestrate it. ### Product and Technology Gimlet built a software platform that runs AI inference workloads across chips from multiple vendors simultaneously. The abstraction layer handles chip-specific instruction sets and memory architectures, letting a single workload be distributed across whatever silicon is available. The company claims 3x to 10x inference speedup at equivalent cost and power, with a design optimized for agentic AI workloads. ### Use of Proceeds and Vision The funds will scale the engineering team, add support for more chip architectures, and grow the enterprise customer base among frontier model labs and cloud providers. The long-term play is to become the Kubernetes of AI inference. ### Market Context The AI inference market is projected at $117.8 billion in 2026, growing toward $312.6 billion by 2034. Gimlet’s multi-silicon approach attacks the three biggest constraints at once: GPU scarcity, CUDA lock-in, and rising inference costs. ## 3. Highlight AI Raises $40M for Team Intelligence Layer ### Deal Overview - **Stage:** Series A - **Sector:** AI / Productivity - **Geography:** San Francisco, CA - **Round size:** $40M - **Total raised:** $50M ### Investor Profile Khosla Ventures led with participation from 359 Capital, General Catalyst, Valor Equity, Makers Fund, Collaborative Fund, Arcadia, and SV Angel. The breadth of the syndicate, eight investors in a Series A, reflects strong competition to get into the round. ### Company and Leadership [Highlight AI](https://highlightai.com) spun out of Medal Inc. in October 2024. Co-founders Pim de Witte and Josh Lipson built Medal, while Haris Butt (ex-VP Design at ClickUp) and Mark Bond (Medal’s first head of growth) round out the founding team. In March 2026, Sergei Sorokin, former VP of Product at Discord, joined as CEO, signaling an enterprise push. ### Problem and Opportunity Knowledge workers lose an estimated 24 hours per week to information routing, tool-switching, and context reconstruction. As teams adopt more AI agents and SaaS tools, the coordination tax grows. No single app owns the cross-tool context layer. ### Product and Technology Highlight is a shared intelligence layer that sits above the existing tool stack: Slack, Zoom, Linear, Figma, GitHub, and others. It captures context from every tool, meeting, and conversation, then proactively surfaces information and routes tasks. The team memory engine gets more valuable with each integration and team member, creating steep switching costs. ### Use of Proceeds and Vision The company plans to double headcount in San Francisco, focused on engineers and go-to-market hires. Product development will center on the unified team memory engine and cross-app orchestration. ### Market Context Highlight competes conceptually with Notion AI and Microsoft Copilot but operates at the cross-tool layer rather than inside any single app. As agentic AI becomes standard, the company bets that shared organizational context, not model capability, will be the real bottleneck. ## 4. Notch Raises $30M for AI in Regulated Industries ### Deal Overview - **Stage:** Series A - **Sector:** AI / Enterprise - **Geography:** Tel Aviv / New York - **Round size:** $30M - **Total raised:** $45M ### Investor Profile Headline led the round with Lightspeed Venture Partners, Jibe Ventures, Illuminate Financial, and Phoenix Insurance. Phoenix Insurance’s participation as both investor and customer validates the product in a sector where trust is the primary purchase criterion. ### Company and Leadership [Notch](https://www.notch.so) was founded in 2021 by Rafael Broshi (CEO), Elool Jacoby (CPO), and Yuval Peled (CTO). The company started as a specialty insurer before pivoting to sell AI infrastructure to the industry it knew best. ARR grew 12x in the past 12 months. The team of about 50 operates across Israel and the US. ### Problem and Opportunity Insurance companies, banks, and telecoms have tried generic AI tools and failed. Unpredictable outputs and black-box decision-making don’t pass muster in regulated environments where every action must be auditable and traceable. ### Product and Technology Notch’s AI operating system deploys production-ready agents that automate both customer-facing and back-office workflows. The architecture combines conversational AI with rule-based logic, audit trails, permissioning systems, and approval flows. Because the founders ran an actual insurer, compliance isn’t a feature added later. It’s baked into the core. ### Use of Proceeds and Vision The capital will accelerate US expansion from the New York office opened in late 2025 and continue platform development across insurance, financial services, telecoms, and healthcare verticals. ### Market Context The AI customer service market is projected at $15.1 billion in 2026 and $47.8 billion by 2030. Regulated industries represent the most underserved segment because compliance risk has kept generic AI out. Notch’s 12x ARR growth shows that solving for compliance first, not second, unlocks real demand. ## 5. Halcyon Raises $21M for Energy Regulatory Intelligence ### Deal Overview - **Stage:** Series A - **Sector:** Climate / Energy - **Geography:** San Francisco, CA - **Round size:** $21M - **Total raised:** ~$31.8M ### Investor Profile Energize Capital led with Zero Infinity Partners, Congruent Ventures, Obvious Ventures, and Sabanci Climate Ventures. Congruent and Obvious both returned from the seed round. An all-climate-focused syndicate reflects strong thesis alignment. ### Company and Leadership [Halcyon](https://halcyon.io) was founded in July 2023 by Bruce Falck (former Head of Revenue Product at Twitter, CEO of Turn, COO of BrightRoll), Nat Bullard (former Chief Content Officer at BloombergNEF), Jonathan Lewis (former VP Product at Stripe), and Alex Huras. The team combines energy domain expertise with enterprise product-building experience. ### Problem and Opportunity The US power grid is going through its biggest transformation since electrification: renewables, data center demand from AI compute, and EV adoption are all hitting at once. An estimated $850 billion is being invested in US power and digital infrastructure in 2026. But the regulatory filings that govern where and how projects get built are scattered across thousands of state commissions, ISOs, RTOs, and FERC. Speed-to-insight on these filings is worth hundreds of millions. ### Product and Technology Halcyon offers two products. The platform is an AI-powered search layer across 6 million+ regulatory documents, updated with roughly 50,000 new filings each month. The data subscription business provides structured trackers for large load tariffs, gas power plants, battery storage, rate cases, and new substation development. Customers include hyperscalers like OpenAI, utilities, developers, and financial firms. ### Use of Proceeds and Vision Funds go toward deeper datasets, broader geographic coverage, and growing the engineering, data science, and sales teams. The company positions itself as the Bloomberg Terminal for energy transition infrastructure. ### Market Context No competitor has systematically parsed and indexed regulatory filings at the state, ISO/RTO, and FERC level simultaneously. Halcyon’s monthly ingestion pipeline continuously widens this data gap, creating a classic flywheel that gets harder to replicate over time. ## 6. BlueFlag Security Raises $16.5M for SDLC Identity Security ### Deal Overview - **Stage:** Series A - **Sector:** Cybersecurity - **Geography:** Sunnyvale, CA - **Round size:** $16.5M - **Total raised:** $28M ### Investor Profile Maverick Ventures, Ten Eleven Ventures, and Pier 88 Investment Partners all returned from the seed round. When the same investors double down at every stage, it signals strong conviction in both the team and the market trajectory. ### Company and Leadership [BlueFlag Security](https://www.blueflagsecurity.com) was founded in 2022 by Raj Mallempati (CEO) and Ken Schneider. The company grew revenue 300% year-over-year and saw a 5x increase in Fortune 500 customers in 2025. ### Problem and Opportunity Most software supply chain breaches start with compromised identities: a developer account, a contractor credential, a service account, or now an AI coding agent. GitHub reports over 40% of new code is written with Copilot assistance. The attack surface of the development pipeline is expanding faster than existing security tools can cover. BlueFlag’s own research found over 75% of SDLC risk is invisible to current application security products. ### Product and Technology BlueFlag treats every human developer, contractor, service account, and AI agent as a managed identity with a continuous behavioral profile. It correlates signals across repos, CI/CD pipelines, and cloud environments to detect anomalies that no single-point tool can see. The newly launched AI Agent Governance module extends this to AI coding assistants and autonomous agents. ### Use of Proceeds and Vision The company will accelerate AI Agent Governance development and expand go-to-market across the US and EMEA, targeting regulated industries and organizations adopting AI-driven development. ### Market Context SDLC security sits at the intersection of the $11 billion+ application security market and the identity security market. BlueFlag is a first mover in AI Agent Governance before any regulatory or tooling standard exists, giving it a window to define the category. ## 7. Dimer Health Raises $13.5M for Transitional Care ### Deal Overview - **Stage:** Series A - **Sector:** Healthtech - **Geography:** Florham Park, NJ - **Round size:** $13.5M - **Total raised:** ~$20M ### Investor Profile Team8 and Bill Ackman’s Table Management co-led the round, with Silver Circle and TechAviv returning from the seed. Ackman’s involvement brings both capital and visibility to a company operating in an unsexy but massive segment of healthcare. ### Company and Leadership [Dimer Health](https://www.dimerhealth.com) was founded in 2023 by Caroline Hodge, PA-C, MS, MBA (CEO), Gidon Coussin, DMSc, PA-C, and Sarig Reichert. The clinical founders bring direct experience with the post-discharge gap they’re trying to close. The company operates across eight US states with an NPS above 90. ### Problem and Opportunity Hospital readmissions cost the US healthcare system $52 to $62 billion annually. Nearly half happen within the first 14 days after discharge. CMS already penalizes hospitals for excess readmission rates through HRRP, creating a direct financial incentive to fix this. The window between discharge and primary care follow-up is a black hole where patients fall through the cracks. ### Product and Technology Dimer created a new clinical specialty it calls Transitional Care Medicine. Licensed “Transitionists” (PAs, NPs, physicians) provide continuous medical oversight from discharge through recovery, supported by AiME, a proprietary AI platform that handles predictive risk scoring, triage, and workflow automation. The model achieves up to 67% readmission reduction. This isn’t SaaS layered on top of a broken process. It’s a clinical service embedded inside health systems. ### Use of Proceeds and Vision Funds will drive national expansion of the Transitionist service line beyond the current eight states, deepen AiME’s capabilities, and strengthen partnerships with health systems and payors. ### Market Context The combination of human clinical accountability and AI automation creates outcome defensibility that pure-software competitors can’t match. Each patient case feeds back into AiME’s predictive models, building a data moat alongside the operational one. ## 8. GlobalComix Raises $13M for Digital Comics ### Deal Overview - **Stage:** Series A - **Sector:** Media / Entertainment - **Geography:** United States - **Round size:** $13M ### Investor Profile Investor details were not disclosed for this round. ### Company and Leadership [GlobalComix](https://www.globalcomix.com) is a digital comics platform that raised $13 million in Series A funding. The company provides a distribution platform for comic creators and publishers to reach global audiences digitally. ### Product and Technology The platform hosts digital comics from independent creators and publishers, offering a reading experience and discovery tools for a global audience. It fills a gap left by the decline of physical comic distribution and the limited reach of legacy digital platforms. ### Use of Proceeds and Vision The round will fund platform growth and creator acquisition as digital comics consumption continues to expand beyond traditional markets. ### Market Context Digital comics and webtoons have seen strong global growth, driven by mobile reading habits and the success of platforms like Webtoon. GlobalComix targets the long tail of creators who need distribution infrastructure beyond the major publishers. ## 9. Trayd Raises $10M for Specialty Contractor Back Office ### Deal Overview - **Stage:** Series A - **Sector:** SaaS / Construction - **Geography:** United States - **Round size:** $10M - **Total raised:** $15M ### Investor Profile White Star Capital led the round. The firm’s focus on B2B SaaS and vertical software aligns well with Trayd’s position in construction technology. ### Company and Leadership [Trayd](https://www.trayd.co) was founded in 2021. The company has raised $15 million to date across its seed and Series A rounds. ### Problem and Opportunity Specialty contractors (electricians, plumbers, HVAC, mechanical) run their businesses on spreadsheets, paper, and disconnected tools. Back-office operations like payroll, time tracking, compliance, and job costing are fragmented and manual. These contractors represent a massive, underdigitized segment of the $2 trillion US construction industry. ### Product and Technology Trayd is an all-in-one back office platform built for specialty contractors. Rather than stitching together generic tools, it provides a single system of record for the administrative workflows these businesses run daily. ### Use of Proceeds and Vision The funding will support product development and customer acquisition as Trayd scales across the specialty contractor market. ### Market Context Construction tech has attracted significant venture capital over the past few years, but most investment has targeted general contractors and project owners. Specialty subcontractors, who do the actual work on site, remain largely unserved by modern software. Trayd is going after this gap directly. ## Lessons For Founders - **Sell to the buyer’s pain, not the technology.** Latent Health doesn’t pitch “clinical AI.” It pitches faster drug access for patients stuck in prior authorization limbo. Halcyon doesn’t sell NLP. It sells speed-to-insight on $850 billion of infrastructure investment. Frame the problem in dollars or lives, not in model architecture. - **Vertical depth beats horizontal breadth at Series A.** Seven of nine deals this week target a specific industry. Notch chose regulated industries. BlueFlag chose the software development pipeline. Dimer Health invented a clinical specialty. At this stage, investors want proof you own a niche before you expand. - **Returning investors are a strong signal.** BlueFlag brought back all three seed investors. Halcyon brought back two. Notch’s Phoenix Insurance invested as both a financial backer and a customer. When existing investors re-up, it tells new investors the metrics held up under scrutiny. - **Compliance as architecture, not afterthought.** Notch, BlueFlag, and Latent Health all built regulatory compliance into their core product design rather than bolting it on later. In regulated markets, this distinction is the difference between pilot and production deployment. - **Founder-market fit still matters most.** Gimlet’s CEO was an NVIDIA GPU architect. Halcyon’s CSO ran content at BloombergNEF. Dimer’s founders are practicing clinicians. The pattern is consistent: investors at Series A want founders who’ve lived inside the problem they’re solving.