Company: BKYI
Filing Date: 2025-12-02
Form Type: 424B3
Source: 0001437749-25-036669
Chunk: 3

Company: BIO KEY INTERNATIONAL INC
Filing Date: 2025-12-02
Form: 424B3
Chunk 3
---
 are not intended to indicate, in any way, that we will not assert, to the fullest extent under applicable law, our rights or that the applicable owner will not assert its rights, to these trademarks and tradenames.

<div align='center'>SUMMARY</div>

This summary highlights information contained in other parts of this prospectus or incorporated by reference into this prospectus from our filings with the Securities and Exchange Commission, or SEC. Because it is only a summary, it does not contain all of the information that you should consider before purchasing our securities in this offering and it is qualified in its entirety by, and should be read in conjunction with, the more detailed information appearing elsewhere or incorporated by reference into this prospectus. You should read the entire prospectus, the registration statement of which this prospectus is a part, and the information incorporated by reference herein in their entirety, including the“Risk Factors”and our financial statements and the related notes incorporated by reference into this prospectus, before purchasing our securities in this offering. Unless the context requires otherwise, references in this prospectus to“BIO-key,”the“Company,” “we,” “us”and“our”refer to BIO-key International, Inc. and our subsidiaries.

<div align='center'>1</div>

Overview

BIO-key International, Inc. is a leading identity access management, or IAM, platform provider for the enterprise and large-scale customer and civil ID solutions. Built to leverage BIO-key’s world-class biometric core platform among seventeen strong authentication factors, BIO-key PortalGuard and hosted PortalGuard ID as a service (IDaaS) platforms that enable our customers to securely and easily assure that only the right people can access the right systems. PortalGuard goes beyond traditional multifactor authentication (MFA) solutions by addressing functional gaps, such as allowing roving users to biometrically authenticate at any workstation without using their phones or tokens eliminating unauthorized account delegation, detecting duplicate users, and accommodating in-person identification.

Our customers use BIO-key every day to securely access a variety of cloud, mobile and web applications, on-premise and cloud-based servers from all of their devices. Employees, contractors, students and faculty sign in through PortalGuard to seamlessly and securely access the applications they need to do their important work, without relying on personal phone use or per-user tokens. Organizations use our platform to securely collaborate with their supply chain and partners, and to provide their customers with flexible, resilient user experiences online or in-person.

Large-scale customer and civil ID customers use our scalable biometric