Case Studies / Enterprise Document RAG - 40TB Private Knowledge Base with Local LLM
Business Automation

Enterprise Document RAG - 40TB Private Knowledge Base with Local LLM

A research-intensive enterprise was sitting on 40TB of accumulated knowledge - scientific papers, lab reports, and scanned PDFs - with no way to search across them intelligently. Employees spent hours digging through folders to find precedents. AMCOLAB deployed a fully on-premises RAG system with a local LLM, making the entire archive queryable in seconds with zero data leaving the building.

Tech Stack
ollama qwen qdrant python langgraph-color ruby-on-rails flutter postgre linux-server
Project Info
Platform Web (admin) + Mobile (field access)
User Type Internal (researchers, department staff)
Client Type Enterprise
Engagement Time & Materials
Region Japan
Enterprise Document RAG - 40TB Private Knowledge Base with Local LLM

The Challenge

The organization had accumulated 40TB of internal knowledge — scientific papers, lab reports, experimental data, and scanned legacy documents. Years of institutional expertise, locked in folders no one could navigate efficiently.

Staff spent hours searching for precedents before starting new work. Relevant documents were missed. Research was sometimes duplicated because earlier findings were effectively invisible. The knowledge existed — it just couldn't be found.

Cloud-based AI was not an option. Strict data residency requirements meant no internal documents could be transmitted to external servers. Any solution had to run entirely within the organization's own infrastructure.

What We Built

AMCOLAB deployed a fully on-premises knowledge search system — making the entire archive queryable through natural language, with zero data leaving the building. Researchers now find relevant precedents in seconds rather than hours.

Document Ingestion
01

Document Ingestion

All document types — structured PDFs, scanned images, Word files, legacy formats — are processed, chunked, and indexed on internal servers. The pipeline runs on a schedule to incorporate new documents automatically.

Local AI Model
02

Local AI Model

A language model runs entirely within the organization's infrastructure. No queries, no document content, and no responses are transmitted to external services. The system works without internet connectivity.

Semantic Search
03

Semantic Search

Employees search in natural language — not file names or keywords. The system identifies the most relevant document sections across the full archive and returns them with source citations, so users can verify against the original material.

Access Control
04

Access Control

Department administrators control which document collections each user group can access. Permissions are managed through an admin console without developer involvement.

Mobile Access (Flutter)
05

Mobile Access (Flutter)

Field researchers query the knowledge base from a mobile app on approved devices — useful in lab environments where desktop terminals are not always available.

Key Outcomes

40TB archive made searchable through plain-language queries — folder navigation no longer required

Research retrieval time reduced from hours to seconds for standard queries

Duplicate research efforts reduced — staff verify prior work before starting new studies

Departmental knowledge no longer siloed — cross-team document discovery enabled for the first time

Full compliance with internal data residency policy — zero external data transmission

New researchers onboard faster — institutional knowledge is now accessible rather than locked in individual files

Delivery Scope

Requirement Definition Architecture Development Integration QA Deployment Maintenance

Why AMCOLAB

On-premises AI expertise

local LLM deployment in air-gapped environments across multiple enterprise projects

Security-first approach

designed from the start around the requirement that no data leaves the building

Full-cycle delivery

SRS through deployment, with ongoing maintenance of model updates and index management

Practical scope

we advised on what to index first and what to leave out, rather than trying to process everything immediately

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Sitting on years of internal documents with no way to search them?

We can build the system — entirely on your infrastructure if needed.

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