AI & Machine Learning Startups

Regent Surgical develops, owns, and manages ambulatory surgery centers across the United States, partnering with health systems and physician practices. The company provides strategic expertise in single-site and multisite ASC operations to improve clinical outcomes, patient experience, and operational efficiency.

3 investors

Regie.ai builds a generative AI sales prospecting platform, including AI sales agents that prospect autonomously and RegieOne, an AI-native sales engagement platform. It serves B2B sales and revenue teams with tools for automated prospecting, sequence generation, and personalized sales content.

3 investors

Rehab for JAPAN develops and provides "Rehab Cloud," a SaaS platform for elderly care and rehabilitation providers, along with "Rehab Studio," an online rehabilitation service, and conducts R&D on AI-based care technology. The company serves care facilities and elderly-care operators in Japan.

3 investors

REKalibrate provides a data analytics platform that unifies fragmented real estate systems to deliver actionable insights on tenant behavior and asset performance for commercial property owners and operators.

3 investors

Related Sciences assembles distributed teams of academic experts and industry veterans to conduct specialized drug discovery and research for biotech companies. The company operates a decentralized R&D model where leading scientists work collaboratively on targeted therapeutic programs.

3 investors

Relatient provides a healthcare technology platform that automates appointment scheduling, patient communication, and call handling for hospitals, health systems, and medical practices. The company serves 50,000+ providers managing over 150M appointments annually through its Dash platform, which integrates scheduling, messaging, and AI-powered voice technology to reduce administrative burden and improve patient access to care.

3 investors

Relative Insight analyzes customer feedback, voice-of-customer data, and employee feedback to identify root causes of sentiment shifts and business impacts. The platform enables organizations across customer experience, product, and HR functions to make data-driven decisions with real-time intelligence.

3 investors

Relay.app offered a workflow automation platform where users built workflows, sequences, and MCP servers with AI credits and connected third-party apps. The company announced it is shutting down, with service ending in 2026.

3 investors

RELEX provides an AI-native supply chain and retail planning platform offering out-of-the-box forecasting, inventory, and demand-planning capabilities that customers can deploy, connect to existing AI ecosystems via open protocols, or extend with custom logic. It serves retailers and manufacturers, including sectors such as pharmaceuticals and fashion.

3 investors

Reliant AI builds AI systems designed to understand life sciences data and support strategic decision-making in drug development for biopharmaceutical companies. Its tools provide predictive and search capabilities over large-scale academic and research data for pharma and biotech commercial and research teams.

3 investors

Relling builds and deploys robotic manufacturing workcells as pre-qualified products rather than custom engineering projects, reducing installation time and enabling faster automation deployment on American factory floors. The company sells integrated workcells that are software-reconfigurable for different parts, addressing the gap between advancing robotics technology and slow, artisanal deployment practices.

3 investors

Relume offers an AI-powered site builder that generates sitemaps, wireframes, and style guides for marketing websites in minutes. It targets designers, developers, freelancers, and agencies, providing a library of over 1,000 components exportable to Figma, Webflow, React, and Claude Design.

3 investors

Relvy provides AI-assisted debugging tools that help software engineers investigate system incidents and identify root causes, with automatic analysis for many alerts and manual guidance options when needed.

3 investors

Rely Health provides an AI-native service for patient orchestration and care navigation, combining AI automation with human care navigators to move patients to their next step in care. It serves health systems, payers, and national enterprises that want to offload the technology and labor of guiding patients through follow-ups, referrals, and benefits.

3 investors

RemBrain builds reconfigurable, AI-powered robotic workstations that combine computer-vision AI control with cobots for high-mix, frequently changing manufacturing environments. It serves manufacturers in medical, power and consumer electronics, wire harness, and industrial plastics sectors, offering turnkey systems (robots, software, deployment, and training) deployed in the US, EU, and Asia.

3 investors

Remedo is a full-service digital marketing agency for medical practices, combining marketing services (SEO, Google Ads/PPC, websites, social media) with an AI-driven analytics dashboard that integrates with practice management systems. It also provides lead management tools and an AI chatbot for patient engagement, with a focus on data security and HIPAA compliance.

3 investors

Remedy Logic develops AI-powered tools for interpreting spine MRI scans, built by a team of radiologists and scientists and validated through clinical studies. The product integrates with existing PACS/RIS systems and is aimed at radiologists to support diagnosis and reduce workflow friction.

3 investors

Remmie Health develops AI-powered ear-nose-throat diagnostic solutions for families and telemedicine providers, using a digital otoscope and app to reduce unnecessary doctor visits and improve diagnostic accuracy in primary care.

3 investors

Avast is a consumer-focused cybersecurity company that provides tools and services to protect users' security, privacy, and identity in the connected digital world.

3 investors

RemyAI is an AI-powered assistant for real estate agents that records calls, generates transcriptions and summaries, manages SMS communications, and tracks follow-up tasks. The platform serves real estate brokerages and agents worldwide.

3 investors

Rena Labs provides a TEE (trusted execution environment) data exchange for confidential AI training and inference on proprietary data, with encryption, on-chain logging, and compliance features. It targets organizations that need to run AI on private data they cannot otherwise access, share, or move.

3 investors

Renkube develops AI-powered solar technology under the name Sunray Sculptors.

3 investors

Rentgrata operates a resident referral and ambassador platform that lets prospective renters chat with current residents before leasing, while automating referral programs and surfacing AI-generated insights from those conversations. It serves property management companies and apartment communities in the multifamily housing market.

3 investors

Reonic is an AI-native platform for renewable energy installers that combines CRM, solar and heat pump system design, quoting with digital signatures, installation management, and a mobile field app in one system. It also offers AI agents and services such as photogrammetry, grid registration, and funding workflow support for residential, commercial, and enterprise solar, storage, EV charging, and heat pump projects.

3 investors