# Thirty Five > Thirty Five combines business design, operations, and technology to help proven professional services firms reduce key-person dependency, build transferable business assets, and expand reach and revenue. Thirty Five, Inc. is based in Indianapolis, Indiana, United States. The primary audience is owners and leadership teams of established professional services firms. Contact: projects@thirtyfive.io. The Delivery Trap is the pattern in which more clients require more delivery, people, management, and complexity. Thirty Five addresses it by moving valuable capability from individual people into six business-owned assets: method, delivery, knowledge, roles, systems and technology, and measurement. A transferable business can reproduce the value it creates without depending on the same founder, senior expert, or key employee every time. Transferability gives an owner options to operate, scale, multiply, or sell. Advisor-led growth and the Advisor Operating System are deeper paths for companies whose core business is already becoming transferable. ## Start here - [Thirty Five overview](https://thirtyfive.io/index.md): Positioning, core problem, six transferable assets, outcomes, and frequently asked questions. - [Free Transferability Assessment](https://thirtyfive.io/assessment.md): The six assessment dimensions, what the score means, and how to take the free 18-question assessment. - [Book a Transferability Call](https://thirtyfive.io/book.md): Who the 30-minute call is for and what to expect. ## Core concepts and services - [The Delivery Trap](https://thirtyfive.io/the-delivery-trap.md): Why conventional professional services growth creates increasing delivery and management dependency. - [How transferability works](https://thirtyfive.io/how-it-works.md): The four-stage approach to capture, build, prove, and apply transferable capability. - [About Thirty Five](https://thirtyfive.io/about.md): Purpose, beliefs, values, experience, and long-term direction. - [Advisor-Led Growth](https://thirtyfive.io/advisor-led-growth.md): How qualified independent advisors can become a responsible second growth channel. - [Advisor Operating System](https://thirtyfive.io/aos.md): The connected operating capability required to support an advisor network. ## Optional - [Contact Thirty Five](https://thirtyfive.io/contact.md): Contact options and the projects@thirtyfive.io email address. - [Privacy Policy](https://thirtyfive.io/privacy.md): How website and inquiry information is handled. - [Website Terms](https://thirtyfive.io/terms.md): Terms governing use of the website and its materials. - [XML sitemap](https://thirtyfive.io/sitemap.xml): Canonical indexable HTML pages.