service / 06 · rag

RAG that holds up in production.

Anyone can wire a vector store to a prompt. We build retrieval-augmented generation that stays accurate on a large, messy, permission-controlled corpus — hybrid retrieval, reranking, structure-aware chunking, grounding, and a real evaluation harness so quality is a number you can trust.

Hybrid retrieval Reranking Grounded + cited Retrieval evals

The gap between a RAG demo and a RAG system

Retrieval-augmented generation is the dominant pattern for putting an LLM to work on enterprise data — and the most common place enterprise AI quietly fails. A demo over ten clean PDFs looks magical. The same approach over a million documents, with tables, scanned pages, near-duplicate versions, and access controls, starts returning the wrong passage and the model confidently fills the gap.

We treat RAG as the engineering discipline it actually is. The retrieval layer is where accuracy is won or lost, so that is where we invest: getting the right chunk in front of the model every time, proving it with evaluation, and keeping every answer grounded in — and cited to — your real source of truth.

The anatomy of a production RAG pipeline.

Every layer is engineered and measured — not a wrapper around a single embedding call.

01 / ingestionCORE
Structure-aware ingestion
We parse and chunk messy enterprise documents — PDFs, Office files, scans, tables — so retrieval units preserve meaning, hierarchy, and metadata instead of slicing text at arbitrary token counts.
  • Layout & table extraction
  • Semantic / structural chunking
  • Metadata & versioning
02 / retrievalCORE
Hybrid retrieval + reranking
Dense vector search combined with keyword/BM25 and a reranking stage, so the passage that actually answers the question surfaces to the top even on large, near-duplicate corpora.
  • Vector + keyword hybrid
  • Cross-encoder reranking
  • Query rewriting / expansion
03 / generationCORE
Grounding & citations
Answers are constrained to retrieved context with citation checks and hallucination guardrails, so every response is traceable to a source a user can click and verify.
  • Citation enforcement
  • Faithfulness guardrails
  • Permission-aware retrieval
04 / evaluationPROVEN
Retrieval & answer evals
A labeled evaluation harness tracks retrieval recall, grounding, and citation accuracy on your real corpus, so quality is measured continuously and regressions are caught before release.
  • Recall & faithfulness metrics
  • Golden question sets
  • Regression gating in CI

Where production RAG pays off

RAG earns its keep wherever the right answer already exists in your data but is too slow, too scattered, or too risky to retrieve by hand:

  • Internal copilots & search — cited answers across the entire document estate instead of a results page nobody reads.
  • Customer-facing assistants — grounded responses safe enough to put in front of customers because every claim is sourced.
  • Policy, contract & SOP Q&A — the exact clause, version, and section returned with attribution, not a paraphrase.
  • Agent retrieval — the retrieval backbone that feeds tool-using agents the grounded context they need to act correctly.

From scope to production.

Fixed scope, fixed price, twelve weeks from briefing to live deployment.

STEP 01
Briefing
We map the corpus, the questions users actually ask, and the accuracy bar. 30 minutes, no deck.
STEP 02
Architecture
Retrieval design, chunking strategy, eval set, and guardrails. Fixed scope, fixed price.
STEP 03
Build
Sprint cycles with weekly demos. You watch retrieval accuracy climb against the eval set every Friday.
STEP 04
Deploy
Production rollout with monitoring, citation logging, and handoff docs. Real users, real load.

Common questions.

What is RAG (retrieval-augmented generation)?

RAG is an architecture that retrieves the relevant passages from your own data first, then has the model answer using only that retrieved context — with citations. It grounds answers in your documents instead of the model's training memory, which is what makes the output trustworthy and verifiable.

Why do RAG demos work but production RAG fails?

A demo runs on a handful of clean documents. Production runs on a large, messy, permission-controlled corpus where naive chunking and single-vector search miss the relevant passage. We engineer hybrid retrieval, reranking, structure-aware chunking, and continuous evals so accuracy holds as the corpus grows.

How do you measure whether a RAG system is accurate?

We build a retrieval and answer evaluation harness — measuring retrieval recall, grounding/faithfulness, and citation correctness against a labeled question set drawn from your real corpus — so quality is a tracked number, not a vibe, and regressions are caught before they ship.

Explore related capabilities.

RAG systems by industry.

How production RAG maps to the realities of each regulated vertical we serve.

Ready to make RAG actually accurate?

Bring a slice of your corpus and the questions your teams ask daily. In thirty minutes we will show how engineered retrieval answers them with citations — and how we will measure it. Response inside 24 hours.

Markets served.

As an enterprise AI agency, eeko systems delivers production AI systems remote-first across the United States and internationally — including these markets:

New York City, New York (NY)

Los Angeles, California (CA)

Chicago, Illinois (IL)

Houston, Texas (TX)

Phoenix, Arizona (AZ)

Philadelphia, Pennsylvania (PA)

San Antonio, Texas (TX)

San Diego, California (CA)

Dallas, Texas (TX)

San Jose, California (CA)

Austin, Texas (TX)

Jacksonville, Florida (FL)

Fort Worth, Texas (TX)

Columbus, Ohio (OH)

Charlotte, North Carolina (NC)

Indianapolis, Indiana (IN)

San Francisco, California (CA)

Seattle, Washington (WA)

Denver, Colorado (CO)

Washington, District of Columbia (DC)

Boston, Massachusetts (MA)

El Paso, Texas (TX)

Nashville, Tennessee (TN)

Detroit, Michigan (MI)

Oklahoma City, Oklahoma (OK)

Portland, Oregon (OR)

Las Vegas, Nevada (NV)

Memphis, Tennessee (TN)

Louisville, Kentucky (KY)

Baltimore, Maryland (MD)

Milwaukee, Wisconsin (WI)

Albuquerque, New Mexico (NM)

Tucson, Arizona (AZ)

Fresno, California (CA)

Sacramento, California (CA)

Kansas City, Missouri (MO)

Atlanta, Georgia (GA)

Miami, Florida (FL)

Colorado Springs, Colorado (CO)

Raleigh, North Carolina (NC)

Omaha, Nebraska (NE)

Long Beach, California (CA)

Virginia Beach, Virginia (VA)

Oakland, California (CA)

Minneapolis, Minnesota (MN)

Tulsa, Oklahoma (OK)

Arlington, Texas (TX)

New Orleans, Louisiana (LA)

Wichita, Kansas (KS)

Cleveland, Ohio (OH)

Tampa, Florida (FL)

Bakersfield, California (CA)

Aurora, Colorado (CO)

Honolulu, Hawaii (HI)

Anaheim, California (CA)

Santa Ana, California (CA)

Corpus Christi, Texas (TX)

Riverside, California (CA)

Lexington, Kentucky (KY)

St. Louis, Missouri (MO)

Stockton, California (CA)

Pittsburgh, Pennsylvania (PA)

Saint Paul, Minnesota (MN)

Cincinnati, Ohio (OH)

Greensboro, North Carolina (NC)

Anchorage, Alaska (AK)

Plano, Texas (TX)

Lincoln, Nebraska (NE)

Orlando, Florida (FL)

Irvine, California (CA)

Newark, New Jersey (NJ)

Toledo, Ohio (OH)

Durham, North Carolina (NC)

Chula Vista, California (CA)

Fort Wayne, Indiana (IN)

Jersey City, New Jersey (NJ)

St. Petersburg, Florida (FL)

Laredo, Texas (TX)

Madison, Wisconsin (WI)

Chandler, Arizona (AZ)

Buffalo, New York (NY)

Lubbock, Texas (TX)

Scottsdale, Arizona (AZ)

Reno, Nevada (NV)

Glendale, Arizona (AZ)

Gilbert, Arizona (AZ)

Winston-Salem, North Carolina (NC)

North Las Vegas, Nevada (NV)

Norfolk, Virginia (VA)

Chesapeake, Virginia (VA)

Fremont, California (CA)

Garland, Texas (TX)

Richmond, Virginia (VA)

Baton Rouge, Louisiana (LA)

Boise, Idaho (ID)

San Bernardino, California (CA)

Spokane, Washington (WA)

Des Moines, Iowa (IA)

Modesto, California (CA)

Birmingham, Alabama (AL)

Tacoma, Washington (WA)

Fontana, California (CA)

Oxnard, California (CA)

Fayetteville, North Carolina (NC)

Huntsville, Alabama (AL)

Moreno Valley, California (CA)

Rochester, New York (NY)

Glendale, California (CA)

Yonkers, New York (NY)

Augusta, Georgia (GA)

Amarillo, Texas (TX)

Little Rock, Arkansas (AR)

Akron, Ohio (OH)

Shreveport, Louisiana (LA)

Grand Rapids, Michigan (MI)

Mobile, Alabama (AL)

Salt Lake City, Utah (UT)

Huntsville, Texas (TX)

Tallahassee, Florida (FL)

Overland Park, Kansas (KS)

Knoxville, Tennessee (TN)

Worcester, Massachusetts (MA)

Brownsville, Texas (TX)

New Port Richey, Florida (FL)

Jackson, Mississippi (MS)

Providence, Rhode Island (RI)

Fort Lauderdale, Florida (FL)

Sioux Falls, South Dakota (SD)

Tempe, Arizona (AZ)

Cape Coral, Florida (FL)

Springfield, Missouri (MO)

Pembroke Pines, Florida (FL)

Eugene, Oregon (OR)

Peoria, Arizona (AZ)

Corona, California (CA)

Lancaster, California (CA)

Rockford, Illinois (IL)

Salinas, California (CA)

Palmdale, California (CA)

Springfield, Massachusetts (MA)

Charleston, South Carolina (SC)

Duluth, Minnesota (MN)

London, England (ENG)

Dublin, Ireland (IRE)