Built for the trust your clients place in you.

Tendrill handles client portfolios, custodial data, and conversations on behalf of financial advisors. Here is how we protect that data and who we share it with.

The short version

  • Bank-level encryption in transit and at rest.
  • Zero data retention on AI queries — never used for training.
  • Read-only connections to client portfolio data.
  • All data stored in the United States.

How we protect your data

Bank-level encryption

Data is encrypted in transit with TLS 1.2+ and at rest with AES-256. Built on SOC 2 and bank-grade infrastructure end to end.

Zero data retention

AI queries run with a zero-retention policy. Nothing you or your clients share is stored on the model side after the response comes back.

No training on your data

Your clients' data is never used to train AI models. It stays in your account and leaves when you say so.

Authentication you control

Self-hosted Better Auth with Google sign-in and SMS verification. No third-party identity vendor holds your credentials.

Read-only by default

All client portfolio connections are read-only. Tendrill never has the ability to move money.

US data residency

Your data is stored in the United States. Our database, hosting, and core providers all operate in US regions.

Who processes your data

The third-party services we use to run Tendrill. We update this list whenever we add or remove one.

AI & inference

6 vendors
Backup AI provider routed via the Vercel AI Gateway
United States
Powers the AI assistant (Claude models)
United States
Gemini models and Google sign-in
United States
OAuth and connector orchestration for third-party integrations
United States
Web search and sandboxed code execution for AI agent workflows
United States
Web crawling for firm and prospect research
United States

Financial data

3 vendors
Account connections for prospects and prospect onboarding flows
United States
Custodial portfolio, holdings, and transaction data for clients
United States
Real-time market data and security pricing
United States

Communication

3 vendors
SMS verification codes
United States
Transactional email delivery
United States
iMessage and RCS delivery
United States

Infrastructure

2 vendors
Hosting, AI Gateway, sandboxed compute, CDN
United States (global CDN)
Database and real-time backend
United States

Operations

1 vendor
Error monitoring and crash reports
United States

How to reach us

Questions, feedback, or due diligence requests — David handles them personally.

david@tendrill.ai

Last updated

April 29, 2026

We update this page whenever our practices or subprocessors change.