Compose AI
Compose AI is a free Chrome extension that cuts your writing time by 40% with AI-powered autocompletion
3 employees · est. 2020 · San Francisco, United States
NinjaTech AI
Conversational AI company focused on making people more productive at work. Founded by ex-Google, ex-Meta, ex-AWS leads.
29 employees · est. 2022 · Palo Alto, United States
Compose AI is the older company (2020 vs 2022); NinjaTech AI is the larger of the two.
Side-by-Side Comparison
| Metric | Compose AI | NinjaTech AI |
|---|---|---|
| Founded | ||
| Founded | 2020 older | 2022 |
| Headquarters | ||
| Headquarters | San Francisco, United States | Palo Alto, United States |
| Employees | ||
| Employees | 3 | 29 larger |
| Industry | ||
| Industry | AI, Messaging, Marketing | AI, Internet, SaaS |
| Funding Stage | ||
| Funding Stage | Seed | Seed |
| Total Funding | ||
| Total Funding | $2.23M | $21.45M |
| Funding Rounds | ||
| Funding Rounds | 2 | 3 |
| Services | ||
| Services | Not tracked yet | AI image and video generation, AI code generation and debugging, Research and content creation, API integrations, AI model access |
| Target Customers | ||
| Target Customers | Not tracked yet | Individuals, Businesses, Developers, Content Creators, Tech Companies |
| Taxonomy | ||
| Taxonomy | AI-powered Autocompletion, Chrome Extension, Writing Productivity, Natural Language Processing, Content Creation, Tech Startup, San Francisco, Startup Founders, Voice Recognition, Contextual Learning | Conversational AI, Productivity Tools, AI Assistant, Workplace Productivity, Tech Startup, AI For Business, Ex-Google Founders, Ex-Meta Founders, Ex-AWS Founders, AI Democratization, Affordable AI Solutions, General AI, Tech Innovation, Employee Efficiency, Task Automation |
| Website | ||
| Website | compose.ai | ninjatech.ai |
About Compose AI
Compose AI is carving a niche in the AI industry with its innovative Chrome extension that significantly reduces writing time. The tool, based in the United States, claims to enhance productivity by offering AI-powered autocompletion, cutting writing duration by an impressive 40%. Since its foundin...
About NinjaTech AI
NinjaTech AI is a pioneering Conversational AI company with a mission to enhance workplace productivity. Founded in 2022 by former high-ranking leaders from Google, Meta, and AWS, the company is headquartered in the United States. Operating at the intersection of AI, Internet, and SaaS, NinjaTech A...
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Compiled from the BounceWatch company index. We last looked at Compose AI on 29 May 2025, and NinjaTech AI on 18 Sep 2025. Where a field is blank here, it means we have not recorded it — not that the answer is zero. How we source and date this.