--- url: 'https://qubit.capital/blog/us-series-a-weekly-funding-roundup-week-1-may-2026' title: 'US Series A Weekly Funding Roundup (Apr 27-May 4, 2026): $378.0M Raised Across 7 Deals' author: name: Sagar Agrawal url: 'https://qubit.capital/blog/author/sagar' date: '2026-05-04T05:17:53+05:30' modified: '2026-05-04T11:29:49+05:30' type: post summary: 'US Series A startups raised $378M across 7 deals this week, led by Tortugas Neuroscience, Standard Intelligence, and Aaru''s billion-dollar mark.' categories: - Weekly Funding Roundup image: 'https://qubit.capital/wp-content/uploads/2026/05/featured-us-series-a-66582.webp' published: true --- # US Series A Weekly Funding Roundup (Apr 27-May 4, 2026): $378.0M Raised Across 7 Deals Series A capital flowed steadily into US startups this week, with seven deals closing a combined $378.0M between April 27 and May 4, 2026. The activity stretched across neuroscience drug development, AI agents, retail finance automation, and consumer SaaS, signaling that growth-stage investors are still writing big checks to teams with credible technical or operational moats. Tortugas Neuroscience led the pack with $106M, while Standard Intelligence pulled in $75M from Sequoia at a half-billion-dollar valuation despite a six-person headcount. The week also showed how stage compression is reshaping the funnel. While US seed startups raised $72.1M across four deals and late-stage rounds totaled $1.12B across seven, the Series A tier kept pace with deals that looked more like growth rounds in disguise — Aaru jumped to a $1B valuation and Tortugas raised seed and Series A in a single bundle. Investors are willing to skip traditional milestones when the team or the market signal is loud enough. Weekly Funding Roundup APR 27-MAY 4, 2026 $378M TOTAL RAISED 7DEALS CLOSED MixedSTAGE $54MAVG DEAL SIZE USTOP REGION BY STAGE Series A$272M72% Combined Seed and Series A$106M28% BY SECTOR Tortugas NeuroscienceHealthtech / CNS biotech$106M Standard IntelligenceAI / foundation models$75M Manifest OSSaaS$60M AaruAI / market research$50M GlimpseAI / vertical SaaS$35M CasaSaaS$27M Golden ChildOther$25M Table of Contents - [1. Tortugas Neuroscience Raises $106M For CNS Drug Development](#1-tortugas-neuroscience-raises-$106m-for-cns-drug-development) [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. Standard Intelligence Raises $75M For Computer-Use Foundation Models](#2-standard-intelligence-raises-$75m-for-computer-use-foundation-models) [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. Aaru Hits $1B Valuation On $50M Series A For Synthetic Populations](#3-aaru-hits-$1b-valuation-on-$50m-series-a-for-synthetic-populations) [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. Manifest OS Raises $60M For Operations SaaS](#4-manifest-os-raises-$60m-for-operations-saas) [Deal Overview](#deal-overview-3) - [Investor Profile](#investor-profile-3) - [Company and Leadership](#company-and-leadership-3) - [Use of Proceeds and VisionA $60M Series A with one lead typically funds 18 to 24 months of aggressive go-to-market and product expansion in adjacent enterprise modules.Market ContextEnterprise operations SaaS continues to attract Series A capital despite a crowded incumbent landscape, especially when teams can show clear AI-native differentiation.5. Glimpse Raises $35M For CPG Deduction AutomationDeal OverviewStage: Series ASector: AI / vertical SaaSGeography: New York CityRound size: $35M (total funding now $52M)Lead investor: Andreessen Horowitz, with 8VC and Y CombinatorInvestor Profilea16z led, with 8VC and YC participating. a16z has been the most aggressive backer of vertical AI agent companies in 2026.Company and LeadershipGlimpse was founded by Akash Raju, Anuj Mehta, and Kushal Negi, who met at Purdue and went through YC. The team initially built an Airbnb product-placement startup before pivoting in 2024 to retail-deduction automation.Problem and OpportunityCPG companies leave roughly $8B in valid disputes uncontested each year because their teams don't have bandwidth to chase deductions. Every Suave or ChapStick parent leaves money on the table at retailers like Walmart and Target.Product and TechnologyGlimpse's AI agents log into retailer portals, locate deduction documentation, classify each chargeback, and validate it against internal supply-chain and promotion data. The platform flags illegitimate deductions and assembles dispute packages automatically. It serves over 200 CPG brands.The moat is the proprietary library of retailer-portal integrations and dispute outcomes. Each resolved dispute trains the classifier.Use of Proceeds and VisionFunds expand AI agent capabilities, retailer integrations, and sales and customer success teams. Adjacent products in trade-promotion ROI and accrual forecasting are next.Market ContextCompetitors include HighRadius and Vividly, plus emerging vertical-AI startups. Glimpse's agentic approach and a16z backing differentiate it.6. Casa Raises $27M For Consumer SaaSDeal OverviewStage: Series ASector: SaaSGeography: United StatesRound size: $27MLead investor: Forerunner VenturesDate: April 30, 2026Investor ProfileForerunner Ventures led, which usually signals a consumer-leaning thesis. Forerunner has historically backed brand-led companies that scale through community and retention rather than paid acquisition.Company and LeadershipCasa closed at the Series A size that typically follows a year or more of revenue traction with strong retention.Use of Proceeds and VisionA $27M check from Forerunner usually goes to product expansion and disciplined growth marketing rather than blitz scaling.Market ContextConsumer SaaS Series As are harder to land in 2026 than enterprise ones, so a Forerunner-led round is a meaningful endorsement of the underlying retention numbers.7. Golden Child Raises $25M Series ADeal OverviewStage: Series ASector: OtherGeography: United StatesRound size: $25MLead investor: Redpoint VenturesDate: April 28, 2026Investor ProfileRedpoint led, marking its second Series A on this list after Aaru. Redpoint's pace through April 2026 reflects a deployment cycle that favors category-defining bets at the Series A boundary.Company and LeadershipGolden Child closed a clean $25M round, the kind of size that supports 18 to 24 months of focused product and team investment.Use of Proceeds and VisionA standard Series A allocation funds engineering hires, GTM build-out, and category positioning ahead of a Series B in late 2027.Market ContextSeries A pricing this week clustered between $25M and $75M, with valuations driven less by stage and more by the strength of the team and category narrative.Lessons For FoundersTrack records compress timelines. Tortugas raised $106M before disclosing a single trial because the founders had taken Sage public, and Standard Intelligence raised $75M with six people because the methodology was credible.Stage labels are flexible in 2026. Aaru's Series A came at a $1B valuation and Tortugas bundled seed and Series A together, so don't get boxed in by category norms when raising.Vertical AI agents keep winning Series A rounds. Glimpse, Aaru, and Standard Intelligence each show a clear data feedback loop that compounds with usage, which is what investors are underwriting.Single-lead rounds at $50M+ are a real conviction signal. Menlo led Manifest OS's $60M alone and Redpoint did the same for Aaru and Golden Child, suggesting strong revenue or technical evidence under the hood.Asia-to-US asset and data flows are an underused edge. Tortugas's licensing strategy from Eisai and Hansoh shows how dealmaking moats can rival platform moats in specific categories.](#use-of-proceeds-and-visiona-$60m-series-a-with-one-lead-typically-funds-18-to-24-months-of-aggressive-go-to-market-and-product-expansion-in-adjacent-enterprise-modules-market-contextenterprise-operations-saas-continues-to-attract-series-a-capital-despite-a-crowded-incumbent-landscape-especially-when-teams-can-show-clear-ai-native-differentiation-5-glimpse-raises-$35m-for-cpg-deduction-automationdeal-overviewstage-series-asector-ai-vertical-saasgeography-new-york-cityround-size-$35m-total-funding-now-$52m-lead-investor-andreessen-horowitz-with-8vc-and-y-combinatorinvestor-profilea16z-led-with-8vc-and-yc-participating-a16z-has-been-the-most-aggressive-backer-of-vertical-ai-agent-companies-in-2026-company-and-leadershipglimpse-was-founded-by-akash-raju-anuj-mehta-and-kushal-negi-who-met-at-purdue-and-went-through-yc-the-team-initially-built-an-airbnb-product-placement-startup-before-pivoting-in-2024-to-retail-deduction-automation-problem-and-opportunitycpg-companies-leave-roughly-$8b-in-valid-disputes-uncontested-each-year-because-their-teams-don-t-have-bandwidth-to-chase-deductions-every-suave-or-chapstick-parent-leaves-money-on-the-table-at-retailers-like-walmart-and-target-product-and-technologyglimpse-s-ai-agents-log-into-retailer-portals-locate-deduction-documentation-classify-each-chargeback-and-validate-it-against-internal-supply-chain-and-promotion-data-the-platform-flags-illegitimate-deductions-and-assembles-dispute-packages-automatically-it-serves-over-200-cpg-brands-the-moat-is-the-proprietary-library-of-retailer-portal-integrations-and-dispute-outcomes-each-resolved-dispute-trains-the-classifier-use-of-proceeds-and-visionfunds-expand-ai-agent-capabilities-retailer-integrations-and-sales-and-customer-success-teams-adjacent-products-in-trade-promotion-roi-and-accrual-forecasting-are-next-market-contextcompetitors-include-highradius-and-vividly-plus-emerging-vertical-ai-startups-glimpse-s-agentic-approach-and-a16z-backing-differentiate-it-6-casa-raises-$27m-for-consumer-saasdeal-overviewstage-series-asector-saasgeography-united-statesround-size-$27mlead-investor-forerunner-venturesdate-april-30-2026investor-profileforerunner-ventures-led-which-usually-signals-a-consumer-leaning-thesis-forerunner-has-historically-backed-brand-led-companies-that-scale-through-community-and-retention-rather-than-paid-acquisition-company-and-leadershipcasa-closed-at-the-series-a-size-that-typically-follows-a-year-or-more-of-revenue-traction-with-strong-retention-use-of-proceeds-and-visiona-$27m-check-from-forerunner-usually-goes-to-product-expansion-and-disciplined-growth-marketing-rather-than-blitz-scaling-market-contextconsumer-saas-series-as-are-harder-to-land-in-2026-than-enterprise-ones-so-a-forerunner-led-round-is-a-meaningful-endorsement-of-the-underlying-retention-numbers-7-golden-child-raises-$25m-series-adeal-overviewstage-series-asector-othergeography-united-statesround-size-$25mlead-investor-redpoint-venturesdate-april-28-2026investor-profileredpoint-led-marking-its-second-series-a-on-this-list-after-aaru-redpoint-s-pace-through-april-2026-reflects-a-deployment-cycle-that-favors-category-defining-bets-at-the-series-a-boundary-company-and-leadershipgolden-child-closed-a-clean-$25m-round-the-kind-of-size-that-supports-18-to-24-months-of-focused-product-and-team-investment-use-of-proceeds-and-visiona-standard-series-a-allocation-funds-engineering-hires-gtm-build-out-and-category-positioning-ahead-of-a-series-b-in-late-2027-market-contextseries-a-pricing-this-week-clustered-between-$25m-and-$75m-with-valuations-driven-less-by-stage-and-more-by-the-strength-of-the-team-and-category-narrative-lessons-for-founderstrack-records-compress-timelines-tortugas-raised-$106m-before-disclosing-a-single-trial-because-the-founders-had-taken-sage-public-and-standard-intelligence-raised-$75m-with-six-people-because-the-methodology-was-credible-stage-labels-are-flexible-in-2026-aaru-s-series-a-came-at-a-$1b-valuation-and-tortugas-bundled-seed-and-series-a-together-so-don-t-get-boxed-in-by-category-norms-when-raising-vertical-ai-agents-keep-winning-series-a-rounds-glimpse-aaru-and-standard-intelligence-each-show-a-clear-data-feedback-loop-that-compounds-with-usage-which-is-what-investors-are-underwriting-single-lead-rounds-at-$50m+-are-a-real-conviction-signal-menlo-led-manifest-os-s-$60m-alone-and-redpoint-did-the-same-for-aaru-and-golden-child-suggesting-strong-revenue-or-technical-evidence-under-the-hood-asia-to-us-asset-and-data-flows-are-an-underused-edge-tortugas-s-licensing-strategy-from-eisai-and-hansoh-shows-how-dealmaking-moats-can-rival-platform-moats-in-specific-categories) - [Market Context](#market-context-3) - [5. Glimpse Raises $35M For CPG Deduction Automation](#5-glimpse-raises-$35m-for-cpg-deduction-automation) [Deal Overview](#deal-overview-4) - [Investor Profile](#investor-profile-4) - [Company and Leadership](#company-and-leadership-4) - [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-4) - [6. Casa Raises $27M For Consumer SaaS](#6-casa-raises-$27m-for-consumer-saas) [Deal Overview](#deal-overview-5) - [Investor Profile](#investor-profile-5) - [Company and Leadership](#company-and-leadership-5) - [Use of Proceeds and Vision](#use-of-proceeds-and-vision-4) - [Market Context](#market-context-5) - [7. Golden Child Raises $25M Series A](#7-golden-child-raises-$25m-series-a) [Deal Overview](#deal-overview-6) - [Investor Profile](#investor-profile-6) - [Company and Leadership](#company-and-leadership-6) - [Use of Proceeds and Vision](#use-of-proceeds-and-vision-5) - [Market Context](#market-context-6) - [Lessons For Founders](#lessons-for-founders) ## 1. Tortugas Neuroscience Raises $106M For CNS Drug Development ### Deal Overview - Stage: Combined Seed and Series A - Sector: Healthtech / CNS biotech - Geography: Framingham, Massachusetts - Round size: $106M - Lead investors: Cure Ventures (Seed), The Column Group and AN Venture Partners (Series A) ### Investor Profile Cure Ventures led the seed tranche, with The Column Group and AN Venture Partners co-leading the Series A. The Column Group has a long track record in biotech company creation, and AN Venture Partners brings Asian pharma deal flow that fits Tortugas’s licensing-first strategy. The investor mix matters because Tortugas isn’t a discovery-stage bet. It’s a clinical operations bet, and the backers chosen reflect that. ### Company and Leadership CEO Jeff Jonas and co-founder Al Robichaud are Sage Therapeutics veterans. They took Sage public and brought Zulresso and Zurzuvae to market for postpartum depression. That track record gave them privileged access to assets and capital on day one. ### Problem and Opportunity CNS drug development has historically been one of the highest-failure categories in pharma. Most assets die in Phase 2 or get shelved by originators who can’t justify the trial spend. Tortugas is targeting that gap by acquiring derisked assets others have walked away from. ### Product and Technology [Tortugas Neuroscience](https://tortugasneuro.com) is a clinical-stage neurology and neuropsychiatry company with four Phase 2-ready assets in-licensed from Asian pharma, including Eisai in Japan and Jiangsu Hansoh Pharmaceutical in China. Indications span schizophrenia, tinnitus, focal epilepsy, and reversible encephalopathies. The edge is dealmaking and clinical execution, not platform technology. Asian originators often have late-preclinical or Phase 2 assets they cannot prosecute in the US, and Tortugas knows how to run those trials. ### Use of Proceeds and Vision The capital funds Phase 2 trials for the two lead candidates, likely the schizophrenia and tinnitus programs, and builds out clinical operations. Runway is sized to multi-year readouts. ### Market Context CNS biotech is in a strong cycle after BMS-Karuna at $14B, AbbVie-Cerevel at $8.7B, and Sage-Biogen validated psychiatric and neuro M&A. Competitors include Neumora and Praxis. Asia-to-US asset in-licensing is now a crowded but proven strategy. ## 2. Standard Intelligence Raises $75M For Computer-Use Foundation Models ### Deal Overview - Stage: Series A - Sector: AI / foundation models - Geography: United States - Round size: $75M at ~$500M post-money - Lead investors: Sequoia Capital, Spark Capital ### Investor Profile Sequoia and Spark Capital co-led, with angel checks from Andrej Karpathy, Stanley Druckenmiller, and Milan Kovac. Karpathy’s involvement is a strong technical signal; Druckenmiller’s is a macro one. Sequoia has been the most active investor in lean AI research labs through 2025 and 2026. ### Company and Leadership [Standard Intelligence](https://standardintelligence.ai) is a six-person research lab. The size is the point. Investors are pricing the team and methodology, not headcount or revenue. ### Problem and Opportunity Computer-use agents are emerging as a defining AI frontier. Anthropic, OpenAI, and Google all ship competing capabilities, but most are trained on screenshot data that misses temporal signal. ### Product and Technology The lab built FDM-1, a foundation model for computer use trained on raw video footage of humans operating software rather than discrete screenshots. That gives the model temporal understanding of UI flows, mouse motion, and keyboard cadence that screenshot-trained agents lack. The video corpus is the moat. Recreating it at scale would take competitors years. ### Use of Proceeds and Vision The round funds continued FDM development, video-scale training compute, and selective hires. The bet is that computer-use is the path to general-purpose agents. ### Market Context Lean AI labs raising at $500M+ valuations is now common when training methodology looks differentiated. Sequoia made similar bets in 2025 with comparable outcomes. ## 3. Aaru Hits $1B Valuation On $50M Series A For Synthetic Populations ### Deal Overview - Stage: Series A - Sector: AI / market research - Geography: United States - Round size: $50M at $1B headline valuation - Lead investor: Redpoint Ventures ### Investor Profile Redpoint Ventures led the multi-tier round. Redpoint has been increasingly active in vertical AI agents and synthetic data plays through 2025 and 2026. ### Company and Leadership [Aaru](https://aaru.com) was founded in March 2024 by Cameron Fink, Ned Koh, and John Kessler. The company is less than two years old but already serves Accenture, EY, and Interpublic Group. ### Problem and Opportunity Traditional market research is slow and expensive, and survey response rates have collapsed over the past decade. The global industry is worth more than $80B annually and has been waiting for a real AI replacement. ### Product and Technology Aaru runs large-scale agent-based simulations that model how real consumer or voter populations would respond to questions, products, or messaging. Customers query a synthetic population of millions of agents to forecast behavior. The company accurately predicted the New York Democratic primary using its system. The moat is the calibration loop between predictions and real outcomes. Each successful forecast feeds back into the agents. ### Use of Proceeds and Vision Capital funds engineering hires to scale simulation infrastructure and agent fidelity, plus go-to-market expansion into financial services and politics. ### Market Context Competitors include Suzy, Rho.ai, and academic agent-simulation projects, but Aaru’s predictive wins put it ahead. ## 4. Manifest OS Raises $60M For Operations SaaS ### Deal Overview - Stage: Series A - Sector: SaaS - Geography: United States - Round size: $60M - Lead investor: Menlo Ventures - Date: April 28, 2026 ### Investor Profile Menlo Ventures led the round solo, a meaningful signal of conviction at this size. Menlo has been deepening its enterprise SaaS and applied AI book in 2026. ### Company and Leadership [Manifest OS](https://manifestos.com) is operating in the enterprise SaaS layer. The Series A size and single-lead structure suggest a strong revenue story going in. ### Use of Proceeds and Vision