About KnotTheory.ai
Privacy-first, agentic tax software — built in California by an engineer with a public, verifiable track record in enterprise systems, AI research, and applied cryptography.
Founder
Gopal Anantharaman — Founder & CEO
Gopal Anantharaman founded KnotTheory.ai Inc. to build privacy-first, on-device AI systems — including the Tesseract line of tax-automation products, which run multimodal AI on the user's own hardware, and Tesseract Tax Cloud, the agentic tax platform for CPA firms.
His research spans graph neural network theory and applied cryptography: recent work includes a topological characterization of GNNs via stochastic block model embeddings on the n-sphere, and a camera-zoom optical cipher co-authored with post-quantum cryptographer Jintai Ding and published in the Computer Vision Conference (CVC) 2026 proceedings (Springer LNNS 1976). He is the sole inventor on pending patents in knot-automata compilation and optical satellite communication.
Previously, he spent two years at Intuit — the company behind TurboTax, the incumbent his products now compete with — and was Principal Architect at Plantronics/Poly, where he architected RPRM, the FIPS-compliant provisioning and management server for Polycom phones and UC endpoints (later Poly Clariti), and authored the Call Manager core shipped in Poly Hub and Lens, with granted patents in multi-device call management.
He holds an M.S. in Computer Science from Columbia University (2004) and a B.E. in Mining Engineering from the College of Engineering, Guindy.
In the Media
"From Silicon Valley Engineer to AI Founder" — Mission Matters podcast with Adam Torres
The Public Record
- US Patent 8,660,255 — "Call control across multiple interfaces," granted 2014, assigned to Plantronics
- arXiv 2606.07598 — A Topological Characterization of Graph Neural Networks via SBM Embeddings on the n-Sphere
- Springer LNNS 1976 (CVC 2026) — Camera-Zoom Paper-Pencil Cipher atop the Merkle–Hellman Knapsack Cryptosystem, with Jintai Ding (open preprint: IACR ePrint 2025/1481)
- arXiv cs/0405110 (2004) — An Analysis of a Bounded Resource Search Puzzle, presented at the Joint Mathematics Meetings 2025
- Invited & contributed talks — Joint Mathematics Meetings 2025 and MAA MathFest 2025 (SIGMAA BIG)
- github.com/KnotTheory-ai-Inc — open-source work, including the Tesseract-Claw coding agent (MIT license)
- Tesseract-Tax on the App Store and Tesseract Tax Cloud, live in production
- LinkedIn — Gopal Anantharaman · Crunchbase — KnotTheory.ai Inc.
Company
KnotTheory.ai Inc.
A California C-Corporation headquartered in Fremont, in the San Francisco Bay Area. Independent and founder-owned. Registered in SAM.gov — Unique Entity ID PCCKJ11V9JP8.
Privacy by Architecture
Our products run AI on-device or in zero-data-retention mode. Tax documents are encrypted end-to-end, and your data is never training data.
Research-Driven
The company publishes its foundational research openly — from GNN theory to optical cryptography — and builds products on top of it.