Top U.S. Startups That Secured Funding In April

April saw a wave of exciting funding rounds in the U.S. startup ecosystem, with innovative companies across various sectors securing significant investments. As businesses adjust to shifting regulations, customer expectations, and cost pressures, investors are directing capital toward startups that are addressing current problems with innovative solutions. 

From AI-powered platforms transforming industries through innovative solutions in cybersecurity and health tech, these startups are ready to change the industry. 

Here’s a look at some of the top U.S. startups that raised funding in April, showcasing the diversity and potential of emerging technologies.

Supabase

Founders: Paul Copplestone and Ant Wilson

Supabase, founded in 2020 by Paul Copplestone and Ant Wilson, is a backend-as-a-service platform built around Postgres, offering integrated services like Auth, Storage, Realtime messaging, and Edge Functions. The platform has attracted over 2 million developers managing over 3.5 million databases, with over 10,000 new databases launched daily. In a remarkable Series D funding round, Supabase raised $200 million, led by Accel, bringing its valuation to $2 billion. Notably, this funding was secured through an unconventional approach, with Accel partners personally visiting Copplestone in his remote hometown of Wānaka, New Zealand, to present the term sheet. Supabase’s growth has been largely organic, fueled by community engagement and the rise of “vibe coders”—developers leveraging platforms like Bolt, Cursor, and Vercel’s v0 to build AI-driven applications. The company has also contributed over 25 open-source tools to the Postgres ecosystem, reinforcing its commitment to developer-first infrastructure.

Endor Labs

Founders: Varun Badhwar and Dimitri Stiliadis

Endor Labs, founded in 2022 by Varun Badhwar and Dimitri Stiliadis, is building a security platform tailored for the AI-generated software era. The company raised $93 million in a Series B round led by DFJ Growth, with backing from Salesforce Ventures, Lightspeed, Coatue, and others, bringing its total funding to $163 million. Endor Labs analyzes over 4.5 million open-source projects, performs 150+ security checks, and uses AI to detect reused and transformed code at the line level. Trusted by companies like OpenAI and Rubrik, it has seen a 30x jump in ARR. It boasts a Net Revenue Retention of 166%, positioning itself as a critical player in securing modern software supply chains.

Krea

Founders: Diego Rodriguez and Victor Perez

Krea, a San Francisco-based AI startup founded by Diego Rodriguez and Victor Perez, is redefining creative control in generative AI. Krea raised an initial $3 million in pre-seed and seed funding, followed by a $33 million Series A, and most recently, a $47 million Series B led by Bain. With $83 million raised across pre-seed, Series A, the company now holds a $500 million valuation. Krea’s platform offers a unified interface for creatives, enabling real-time, touch-optimized editing of massive image files and seamless integration with evolving AI models. Trusted by professionals at Pixar, LEGO, Samsung, and Perplexity AI, Krea emphasizes that AI-generated content is a starting point, not the final product. The company began with a seven-hour screen recording, leading to the development of Geniverse, a prototype platform integrating multiple AI models for text-to-image and image-to-image generation. This innovation caught the attention of HF0, a selective accelerator, propelling Krea into the spotlight.

Nourish

Founders: Aidan Dewar, Sam Perkins, and Stephanie Liu

Nourish, founded in 2021 by Aidan Dewar, Sam Perkins, and Stephanie Liu, is a virtual nutrition platform that connects patients with registered dietitians through insurance-covered care. With over 3,000 RDs across all 50 U.S. states and 94% of users paying nothing out-of-pocket, the company leverages AI for personalized nutrition tracking, lab integration, and chronic disease management. Nourish raised $70 million in a Series B led by J.P. Morgan’s Growth Equity Partners, bringing its total funding to $115 million and pushing its valuation past $1 billion. Its GLP-1 companion program has driven 33% more weight loss for users, and the company plans to scale its AI tools and RD network further to expand access to affordable, effective nutrition care.

Incident.io

Founders: Stephen Whitworth, Pete Hamilton, and Chris Evans

Incident.io, founded in 2021 by former Monzo engineers Stephen Whitworth, Pete Hamilton, and Chris Evans, is an AI-powered incident management platform designed to help engineering teams swiftly address software outages. The company raised $62 million in a Series B funding round led by Insight Partners, with participation from Index Ventures and Point Nine Capital, bringing its total funding to over $96 million and valuing the company at approximately $400 million. Incident.io’s platform has managed over 250,000 incidents and is trusted by teams at Netflix, Linear, Ramp, and Etsy. The funding will enhance its AI capabilities, expand its global go-to-market team, and develop its platform to provide real-time, AI-driven incident response solutions.

LiveKit

Founders: Russ d’Sa and David Zhao

LiveKit, founded by Russ d’Sa and David Zhao in 2021, is a voice AI infrastructure platform that powers real-time, multimodal applications. The company recently raised $45 million in a Series B funding round led by Altimeter, with participation from Redpoint Ventures and Hanabi Capital, bringing its total funding to $83 million and valuing the company at $345 million. LiveKit’s open-source framework, Agents 1.0, enables developers to build voice-first AI applications with features like multi-agent orchestration and semantic turn detection. The platform has been integral to the rise of voice-based AI interfaces, used in every GPT-4o voice demo and adopted across industries for applications ranging from hospital workflows to customer support.

Chef Robotics

Founder: Rajat Bhageria

Chef Robotics, founded by Rajat Bhageria in 2019, has raised $43.1 million in Series A funding to scale its AI-powered robotic systems for meal assembly. The round includes $20.6 million in equity, led by Avataar Ventures, and $22.5 million in equipment financing debt, enabling a Robotics-as-a-Service (RaaS) model that reduces customer upfront costs. Chef Robotics has already produced over 44 million servings for brands like Amy’s Kitchen and Sunbasket, utilizing real-world data to train its AI models for improved flexibility in handling various ingredients. The company plans to expand its team and operations, including a potential entry into the UK market, to meet the growing demand for automated food production solutions.

Adaptive Security

Founders: Brian Long and Andrew Jones

Adaptive Security, co-founded by Brian Long and Andrew Jones, is a cybersecurity firm specializing in defending against AI-driven social engineering attacks, including deepfakes, vishing, and smishing. The company has raised $43 million in a Series A funding round led by Andreessen Horowitz (a16z) and the OpenAI Startup Fund, marking OpenAI’s first investment in a cybersecurity startup. Adaptive Security utilizes generative AI to simulate realistic cyberattacks, training employees to identify threats, triage suspicious activity in real-time, and assess risks proactively. The platform has been adopted by over 100 enterprise clients and aims to enhance organizational resilience against sophisticated AI-powered cyber threats.

Superpower

Founders: Jacob Peters, Max Marchione, and Kevin Unkrich

Superpower, founded in 2023 by Jacob Peters, Max Marchione, and Kevin Unkrich, has raised $30 million in Series A funding led by Forerunner Ventures, with participation from Winklevoss Capital and celebrity investors like Giannis Antetokounmpo. The company has launched what it calls the world’s first health super-app, combining biannual lab testing, AI-driven health insights, and personalized wellness strategies. Users receive a comprehensive analysis of over 100 biomarkers, including hormones, inflammation, and nutrients, integrated with data from wearables and genomics. This approach aims to shift healthcare from reactive to proactive, empowering individuals to monitor and manage their health continuously. Superpower is currently onboarding users from a waitlist of 150,000 and plans to expand its platform to iOS and Android in the near future.

Virtue AI

Founders: Bo Li, Dawn Song, Carlos Guestrin, and Sanmi Koyejo

Virtue AI, founded by AI safety experts Bo Li, Dawn Song, Carlos Guestrin, and Sanmi Koyejo, has raised $30 million in Seed and Series A funding led by Lightspeed Venture Partners and Walden Catalyst Ventures, with participation from TenEleven Ventures, Conviction, and Nucleate. The company offers a comprehensive AI security platform comprising three core products: VirtueGuard, a real-time moderation engine; VirtueRed, an adversarial testing toolkit; and VirtueAgent, a secure agent deployment solution. These tools address vulnerabilities such as hallucinations, prompt injections, and data leakage, enabling enterprises to deploy generative AI safely across various modalities, including text, image, video, audio, and code. Clients include Uber, Glean, and Intel, with plans to expand its team and platform capabilities using the new funding.

Listen Labs

Founders: Florian Juengermann and Alfred Wahlforss

Listen Labs, founded by Florian Juengermann and Alfred Wahlforss, is revolutionizing customer research by using AI to conduct thousands of voice and video interviews across diverse geographies and demographics. The platform enables customers to engage in natural conversations, with AI systems listening, asking follow-up questions, and compiling insights into comprehensive reports and presentations. Having raised $27 million in Seed and Series A funding rounds led by Sequoia Capital, Listen Labs counts Microsoft, Canva, and Chubbies among its clients. The company’s AI engine, built on a dynamic stack of large language models, supports multiple languages and adapts as technology advances, allowing for real-time, scalable customer feedback analysis. Originally conceived from the founders’ need for scalable customer insights for their previous app, BeFake, Listen Labs has evolved into a tool that transforms qualitative feedback into actionable business intelligence.

Blooming Health

Founders: Nima Roohi, Kavitha Gnanasambandan, and Naman Gupta

Blooming Health, founded by Nima Roohi, is a New York-based social care technology platform that leverages AI to connect underserved populations with essential services. The company recently raised $26 million in a Series A funding round led by Insight Partners, with participation from Afore Capital, Crossbeam Venture Partners, and Metrodora Ventures, bringing its total funding to $32.5 million. Blooming Health’s AI-driven platform has connected over 1.5 million individuals across 22 states to critical support services, including meal delivery, transportation, housing assistance, and social engagement programs. With automated outreach available in over 80 languages, the platform empowers over 1,000 community organizations, government agencies, and healthcare providers to efficiently manage and support vulnerable populations. The company aims to expand its reach to 10 million people, addressing the growing demand for integrated social care solutions in the U.S.

Camp Network

Founders: Nirav Murthy, James Chi, and Rahul Doraiswami

Camp Network, founded by Nirav Murthy, James Chi, and Rahul Doraiswami, is a blockchain-based platform designed to help content creators register, license, and monetize their digital works, ensuring they receive compensation when their content is used to train AI models. The company raised $25 million in a Series A funding round led by 1kx and Blockchain Capital, with participation from OKX, Lattice, Paper Ventures, and others, bringing its total funding to $30 million and valuing the company at up to $400 million. Camp Network’s Layer 1 blockchain allows gasless IP registration and automated royalty distribution through smart contracts, providing a structured and enforceable system for AI developers to access licensed, rights-cleared content. This approach addresses the growing demand for ethically sourced training data in the AI industry.

Artisan

Founder: Jaspar Carmichael-Jack

Artisan, founded by 23-year-old Jaspar Carmichael-Jack, is an AI sales tech startup that gained notoriety with its provocative “Stop Hiring Humans” billboard campaign. Despite the bold marketing, Artisan has secured a $25 million Series A funding round led by Glade Brook Capital, with participation from Y Combinator, Day One Ventures, and HubSpot Ventures, following a previous $12 million raise. The company’s flagship AI sales agent, Ava, has been refined through a partnership with Anthropic to minimize errors, now boasting a hallucination rate of just one in 10,000 emails. Serving 250 customers and achieving $5 million in annual recurring revenue, Artisan has learned that AI SDRs aren’t universally applicable, leading to a more selective client approach. Ironically, the company that once urged against hiring humans is now expanding its team, planning to add 22 new employees to its current 35, including a new CTO, Ming Li, to support its growth.

Reducto

Founders: Adit Abraham and Raunak Chowdhuri

Reducto, founded in 2023 by former Google and Nvidia engineers Adit Abraham and Raunak Chowdhuri, has developed an AI-powered document parsing platform that transforms complex, unstructured documents into structured data. Utilizing a multi-pass parsing approach with Vision-Language Models (VLMs), Reducto mimics human review processes to enhance accuracy, particularly in documents with handwriting, checkboxes, and varied layouts. The company has processed over 250 million pages for clients including Scale AI, Vanta, and several Fortune 500 companies across finance, healthcare, tech, and legal sectors. Recently, Reducto secured a $24.5 million Series A funding round led by Benchmark, with participation from First Round Capital, BoxGroup, and Y Combinator, bringing its total funding to $33 million. The funds will support expanding its Agentic OCR framework and cost-optimization features, positioning Reducto to address further the critical need for accurate document processing in enterprise AI adoption.

P-1 AI

Founders: Paul Eremenko, Aleksa Gordić, and Adam Nagel

P-1 AI, co-founded by Paul Eremenko, Aleksa Gordić, and Adam Nagel, has emerged from stealth with a $23 million seed funding round led by Radical Ventures, joined by Village Global, Schematic Ventures, and Lerer Hippeau, along with angel investors including Jeff Dean and Peter Welinder. The San Francisco-based startup aims to develop “engineering AGI”—an AI capable of assisting in the design of complex physical systems. Their first product, Archie, is an AI-powered engineering agent designed to perform tasks akin to a junior engineer, such as distilling design requirements, generating early design concepts, and selecting appropriate tools for detailed work. To overcome the scarcity of high-quality engineering data, P-1 AI is creating large-scale synthetic datasets grounded in physics simulations and supply chain constraints. Archie is slated for initial deployment later this year to support the engineering of data center cooling systems, with plans to expand across industries including building systems, industrial machinery, automotive, aerospace, and defense.

Irrigreen

Founders: Shane Dyer and Gary Klinefelter

Irrigreen, founded in 2014 by Shane Dyer and Gary Klinefelter, is revolutionizing lawn irrigation by combining AI with inkjet printer technology to create ultra-precise robotic sprinklers. Each sprinkler head features 14 computer-controlled nozzles that “print” water exactly where it’s needed, reducing water usage by up to 50% compared to traditional systems. The company recently secured $19 million in Series A funding led by Natural Ventures and Burnt Island Ventures, bringing its total funding to $34 million. This capital will support the expansion of U.S. manufacturing in Wisconsin, the growth of its nationwide installer network, and ongoing R&D efforts. Irrigreen’s AI-powered design tool uses satellite imagery to map lawns and customize irrigation plans, while its Smart Controller 3 adjusts watering in real-time based on weather conditions and plant needs. With over 80 million residential lawns in the U.S., Irrigreen aims to set a new standard in sustainable lawn care.

Actively AI

Founders: Mihir Garimella and Anshul Gupta

Actively AI, founded in 2022 by Stanford-trained AI researchers Mihir Garimella and Anshul Gupta, has secured $22.5 million in funding, including a $17.5 million Series A led by Bain Capital Ventures, to develop its “GTM Superintelligence” platform. Unlike traditional AI sales tools focusing on high-volume outreach, Actively’s platform employs deep reasoning to identify and engage high-value prospects, tailoring strategies based on a company’s unique products, positioning, and historical performance data. Serving clients like Ramp, Ironclad, and Navan, the platform aims to enhance revenue team efficiency by enabling sales representatives to concentrate on meaningful engagements rather than repetitive tasks. With participation from First Round Capital and notable angel investors, the company plans to use the new funding to expand its team and broaden the platform’s capabilities across the go-to-market stack.

Brellium

Founders: Henry Kasa, Zach Rosen, Max Katzman, and Alex Le Tu

Brellium, founded in 2021 by Henry Kasa, Zach Rosen, Max Katzman, and Alex Le Tu, is an AI-driven healthcare compliance platform that automates the auditing of 100% of patient charts to identify documentation errors and clinical risks. By leveraging natural language processing and clinical rule engines, Brellium addresses the administrative inefficiencies that cost the U.S. healthcare system billions annually. The company recently secured $16.7 million in funding from investors, including First Round Capital, Left Lane Capital, Menlo Ventures, and others. Serving organizations across mental health, autism care, and hospice services, Brellium has audited millions of charts nationwide, aiming to enhance care quality and reduce compliance-related costs.

Outtake

Founder: Alex Arjun Dhillon

Outtake, founded in October 2023 by Alex Arjun Dhillon, is a New York-based cybersecurity startup tackling the surge of AI-powered impersonation scams. Emerging from stealth with a $16.5 million Series A led by CRV, the company has raised $20 million, achieving a pre-money valuation exceeding $100 million. Unlike traditional cybersecurity firms, Outtake operates beyond internal networks, deploying automated agents that detect and dismantle fake profiles, spoofed emails, and cloned websites across social media and search platforms. Its clientele includes high-profile entities like OpenAI, Scicomm Media (producers of the Huberman Lab podcast), and Pershing Square, led by investor Bill Ackman. With a team comprising former engineers from Palantir, Meta, and Notion, Outtake leverages AI to automate the takedown process, navigating platform policies and executing removals with minimal human intervention. As AI-generated scams become increasingly sophisticated, Outtake positions itself as a critical defender of digital trust in an era where online authenticity is constantly threatened.