Venture-Backed Startups

4Pay provides an AI-based fintech software-as-a-service platform that enables startups and enterprises to build open-banking marketplace experiences and embedded financial services. The platform offers modular solutions for KYC verification, micro-loans, payments, payroll, and card issuance across cloud and on-premises deployments.

1 investor

4pi Lab develops remote sensing satellites to detect, monitor, and respond to wildfires and their emissions for climate change mitigation. The company serves organizations and government sectors seeking early wildfire detection and real-time global coverage capabilities.

2 investors

4Pillars is a research-driven blockchain company operating three brands covering digital asset research, validator/node infrastructure, and advisory services, with particular focus on the Asian markets of Korea, Japan, Hong Kong, and Singapore. It serves founders, funds, regulators, banks, asset managers, exchanges, and corporates working in the blockchain and digital assets space.

2 investors

4Point AI develops a Spatial Intelligence platform that provides geological insights for subsurface decision-making. The platform serves investors, mining operators, and governments by delivering decision-grade analysis for mineral discovery and earth science applications.

3 investors

0 investors

4screen operates an in-car marketing platform that connects brands and businesses with drivers by delivering real-time, location-based content directly on the car's dashboard screen. It provides businesses with campaign dashboards, analytics, and metrics, while offering automotive brands API integration to monetize vehicle data and enhance the driving experience.

4 investors

4sell.ai offers an AI-powered tool for retail or point-of-sale operations that provides upsell suggestions, sales scripts, and fraud tracking, along with real-time employee metrics and automated bonus calculation. It connects to a mobile app and POS system to monitor and motivate sales staff.

1 investor

4Sight Labs builds biometric monitoring systems, including its OverWatch platform, that provide real-time physiological insight into individuals in custody for correctional facilities and public-safety agencies. The systems support safety, welfare, and oversight operations in complex, steel-reinforced correctional environments.

0 investors

4straction provides a digital platform for continuous strategy work and implementation that helps organizations design strategies through facilitated workshops, model strategy processes, and manage implementation via integrated dashboards, meeting management, and performance tracking tools.

1 investor

R.R. Street & Co. Inc. is a company serving the dry-cleaning industry through chemical products and related services. The company supports industry education, research advancement, and professional development in textile care.

1 investor

4StudentLives provides a platform for K-12 school districts to centralize threat and risk assessments, replacing paper forms and scattered documentation with a compliant, role-based system that tracks student concerns across campuses and school years. The platform is designed specifically for administrators, counselors, and school resource officers to conduct structured behavioral assessments and create defensible documentation aligned with state mandates.

1 investor

4t2 Sensors develops fluid sensing technology aimed at providing measurement accuracy and insight in fluid analysis.

3 investors

4T2D is a Vermont lifestyle apparel boutique that designs and manufactures its own clothing, beanies, and accessories while also curating USA-made and independent brands. It sells through its Burlington, Vermont store and online, focusing on everyday comfortable, durable apparel.

1 investor

0 investors

4TEEN4 develops monoclonal antibody therapeutics targeting shock and critical illness in patients. The company is advancing invobenitug (procizumab), a first-in-class treatment designed to address circulating dipeptidyl peptidase 3, a molecular driver of cardiovascular dysfunction and organ failure in shock states.

2 investors

0 investors

0 investors

1 investor

4th Phase Technologies develops a chemically densified carbon nanotube (DCN) membrane sheet used for filtering chemicals from liquids, with applications ranging from hazardous waste treatment to water purification. The company positions its material for water purification and filtration use cases.

1 investor

0 investors

4U by Tia is a hair care brand focused on curl care products made with clean, sustainable ingredients, marketed as safe for the whole family including children.

1 investor

0 investors

4Wall provides entertainment equipment rentals — audio, lighting, video, and rigging gear — along with event production, systems design, and permanent installation services for events ranging from corporate exhibitions and Broadway plays to concert tours and film sets. It also sells new and used professional equipment through its dealer channels and operates across the US and Europe.

1 investor

4WEB Medical designs titanium interbody spinal fusion implants using a truss-based structural design produced through additive manufacturing (3D printing). Its products include stand-alone and lateral spine systems intended to support the fusion process and improve patient outcomes.

0 investors