GraySoftware
Custom AI & Business Systems
Japan & United States
For companies, we develop custom AI fitted to your operations, AI-enabled business systems, automation, AI added to existing systems, and PoC or prototype work.
We do not only install existing AI tools. When it is needed, we design and build the AI and software itself around each company's data and workflows.
About
Grayson Bannister is the founder of GraySoftware and a co-owner of GrayJack Holdings. He builds software and automation systems across the United States and Japan, with experience spanning business operations, application development, algorithmic systems, and AI.
Selected Work
BarnBoss
Horse management platform for owners, trainers, and stables—health tracking, task scheduling, billing, and operations.

OptionForge
Algorithmic stock trading platform with custom indicators designed to run alongside automated strategies. Used to grow $150,000 to $230,000 in a month.
Gotochi.org
Web platform focused on Japanese regional specialties and cultural experiences.
Kanjikenja.com
Educational platform for learning Japanese kanji with interactive tools and resources.
漢字賢者 (Kanji Kenja) Mobile App
Japanese learning app for iOS and Android that helps users master kanji through gamified exercises and an FSRS spaced repetition system.
Red River Distribution
Warehousing, fulfillment, and logistics services with advanced technology integration.
Natural Native
E-commerce platform for all-natural wellness products with a clean, minimalist design.
Red River Labs
White-label manufacturing solutions site with a professional, operations-focused design.
Capabilities
- Custom AI designed around your operations
- Business systems with AI built in
- Business process automation
- Adding AI to existing systems
- PoC and prototype development
- Workflows such as orders, quotations, knowledge, analysis, manufacturing, and sales/admin
- Bilingual Japan/U.S. implementation







