StartX — Full Portfolio

Limber is an AI-powered fitness app that uses motion-sensing wearable technology and neuroscience to enhance adaptive intelligence and help users maintain effortless movement through personalized 10-minute daily training sessions.

AI & Machine LearningDigital HealthHealthtechWellness & FitnessBrooklyn, US

Rachael Wallach(CEO)Stephanie Tietz(VP of AI)

Co-investorsTechstarsSerena Ventures

Civil Maps provides high-definition mapping and localization technology, producing high-fidelity point cloud data with 15–20 cm absolute accuracy.

AI & Machine LearningDeep TechMobility & Transportation

Co-investorsElev8.vcReshapeScrum VenturesTSVCAME Cloud VenturesMotus Ventures, Llc

Hoplynk develops AI-native network control software that configures, protects, and optimizes connectivity across devices, vehicles, and systems.

AI & Machine LearningCloud ComputingDefense TechEnterprise Software

Lucina Biotherapeutics develops therapeutics to treat aging-related disorders, particularly dry age-related macular degeneration (AMD), by restoring very long-chain polyunsaturated fatty acids (VLC-PUFAs) in tissues through its PUFActive platform.

BiotechLongevityMedical DevicesSanta Cruz, US

Christopher Chavez(Co-Founder and Chief Executive Officer)Dorota Skowronska-Krawczyk(Scientific Co-Founder)Marty EmanueleJeanetteDavid

Lygg develops a photostable chemical ingredient for skincare that provides enhanced protection against UVA radiation, tripling the effectiveness of existing FDA-approved options for sun damage prevention.

ConsumerDirect to ConsumerSan Francisco, US

Graham Dick(Founder)in

Co-investorsY CombinatorSuperhero Capital

MedTrans Go provides technology for healthcare providers to order patient transportation and interpretation services, aimed at reducing appointment cancellations and no-shows.

HealthtechLogistics & Supply ChainSaaSAtlanta, US

Dr. Obi Ugwonali(Co-Founder & President)inDana Weeks(Co-Founder & Chief Executive Officer)inMike Dunn(Director)Adanna Ugwonali(Director)

Miravoice uses natural language processing to conduct automated voice interviews and surveys, capturing structured data, transcripts, and recordings.

AI & Machine LearningData & InfrastructureMarketing TechSaaSSan Francisco, US

Shreyas Tirumala(Founder)inNishant Jain(Founder)

Co-investors25MadisonUnusual Ventures

Mosaic Atomics provides a software platform for automating radiation shielding calculations for medical imaging and radiation therapy facilities, following regulatory standards including NCRP-147, TG-108, and NCRP-151.

Medical DevicesSaaS

Nurea develops medical imaging software using biomedical modeling, 3D numerical simulation, and AI, including PRAEVAorta 2, which automatically segments and analyzes blood vessels to quantify aortic and vascular diseases.

AI & Machine LearningHealthtechMedical Devices

Co-investorsNewfund Capital

OG Tool runs marketing campaigns that generate brand visibility through Reddit threads, SEO/AEO blog content, and AI answer engines like ChatGPT for consumer brands.

AdTechMarketing Tech

Okahu provides tools for engineers to identify and debug issues in AI agents, offered through a cloud platform.

AI & Machine LearningCloud ComputingDeveloper ToolsRedwood City, US

Prasad Mujumdar(Founder)Pratik Verma(Founder)

Co-investorsUlu VenturesZelda Ventures

Pamastay is a compliance platform that unifies healthcare claims data from CCLF, EDI 837, and direct extracts to run claims-based risk scoring, continuous anomaly monitoring, audit preparation, investigation workflows, and corrective-action tracking aligned with OIG compliance program elements.

AI & Machine LearningHealthtechSaaS

Pinetree provides medical revenue cycle management services, including full-cycle billing, denial management, and underpayment recovery, working within a practice's existing EHR, practice management, and billing platforms.

Digital HealthHealthtechSaaS

PNYO is an anonymous social communication app that enables users to chat and call strangers without registration.

Social

Gigi Wu(Founder)inShunta Komine(Founder)in

Co-investorsEvolution VC PartnersNewfund CapitalValuestream Ventures

PyxiScience is an AI-powered adaptive mathematics learning platform for secondary and higher education students and teachers.

AI & Machine LearningEdTech

Joachim Lebovits(Co-founder and CEO)Jacques Lévy Véhel(Co-founder)in

Co-investorsNewfund Capital

Raidium develops an AI-native PACS viewer built on a foundation model for radiology, unifying image-viewing and diagnostic tasks in a single promptable platform.

AI & Machine LearningDigital HealthMedical Devices

Paul Herent, M.D., Msc(Founder)in

Co-investorsDebiopharm Innovation FundGalion.exeKurma PartnersNewfund Capital

Reforge Robotics develops motion control software that uses calibration, deterministic modeling, and model-based controllers to improve the speed and accuracy of industrial robots.

Advanced ManufacturingRoboticsSaaS

Scorecard provides AI testing and evaluation software that helps teams replace subjective reviews with systematic testing for building trustworthy AI products.

AI & Machine LearningDeveloper ToolsSaaSSan Francisco, US

Co-investorsInception Studio CapitalKindred VenturesTekton Ventures

Silana develops an autonomous sewing system that automates garment assembly, the last manual step in clothing manufacturing.

Advanced ManufacturingHardwareRobotics

Simular builds AI agents that automate repetitive computer work for knowledge workers using a neuro-symbolic approach combining large language models with symbolic code.

AI & Machine LearningDeveloper ToolsEnterprise SoftwareSan Carlos, US

AlanLi Ang(Executive Officer)Ang Li(Founder)in

Co-investorsAngel Collective Opportunity FundFelicis VenturesFlying Fish VenturesSamsung NextVela PartnersBasis Set Ventures+2 more

Sitemana provides a website visitor identification tool that captures high-intent visitors' email addresses via a single line of code, syncing them to marketing platforms like Klaviyo, HubSpot, and Salesforce.

AdTechMarketing TechSaaS

Songscription converts audio files into sheet music and MIDI notation.

AI & Machine LearningCreator EconomyEdTech

Andrew Carlins(Co-Founder & CEO)

Co-investors10x FoundersDent CapitalReach Capital

SoranoAI develops AI-powered weather intelligence products, including its Kumo Edge platform, which compares live prediction-market prices against forecast-derived probabilities to help traders identify where market odds differ from data-driven weather outcomes.

AI & Machine LearningClimate TechEnergyFintechSaaSStanford, US

Co-investorsTechstarsPlug and Play Ventures

Tachyus builds a software platform for physics-based modeling and optimization of oil and gas reservoirs, supporting reservoir management and production optimization for energy producers.

AI & Machine LearningCleantechEnergySaaSHouston, US

Francisco LePort(Executive Officer, Director)inDakin Sloss(Executive Officer, Director)inPaul Orland(Executive Officer)inPallav Sarma(Co-Founder & CTO)inFernando Gutierrez(CEO)inMatt Elbert(CFO & CRO)in

Co-investorsBaruch Future VenturesCota CapitalStreamlined VenturesStruck CapitalCaffeinated CapitalFounders Fund+2 more

Tau9 Labs builds custom software and AI systems for manufacturers, covering process optimization, predictive maintenance, production planning, and custom eCommerce platforms.

Advanced ManufacturingAI & Machine LearningSaaS

Tessel provides an evidence and monitoring infrastructure for safety-critical AI systems in medical diagnostics, helping developers systematically validate and track model behavior across regulatory standards and real-world deployment scenarios.

AI & Machine LearningDigital HealthMedical Devices

Lucas Tao(Founder)inArvind Thiagarajan(Founder)in

Co-investorsFoothill Ventures

Toro Bio develops automated systems for cell and gene therapy production at point of care, enabling personalized cancer therapies.

BiotechHealthtechMedical Devices

Umberto Scarfogliero(Founder)in

Co-investorsTaiwan Global Angels

Type 1 Compute converts existing AI models trained in PyTorch or ONNX to run on FPGAs with significantly reduced power consumption, enabling edge deployment without retraining or hardware changes.

AI & Machine LearningDeep Tech

Co-investorsEdge Case Capital PartnersEntrepreneur Ventures

VetraFi is a digital banking platform serving the U.S. military community—active service members, veterans, and their families.

Fintech

Co-investorsEvolution VC PartnersOssian CapitalThe Veteran FundContext Ventures

A software platform for continuous body measurement data, transforming point-in-time scans into longitudinal tracking infrastructure.

AI & Machine LearningHealthtechSaaS

Vouch is a marketplace connecting brands with creative freelancers through trusted introductions made by intro-makers, covering fields such as fashion, film, content, music, and visual art.

Creator EconomyFuture of WorkMarketplaces

Phil provides donor-advised fund (DAF) infrastructure that financial institutions embed in their platforms, offering multi-custodian support, separately managed accounts, automated grantmaking with ACH payments, and a white-labeled donor and advisor portal.

Enterprise SoftwareFintechSaaS