GraphRAG Consulting
When chunk retrieval cannot join entities across documents, GraphRAG — a permissioned knowledge graph plus hybrid search — is the retrieval layer to build.
- Service
- RAG
- Industry
- Enterprise
- Updated
- 2026-08-25
- Engagement
- 4 wks
GraphRAG consulting builds a permissioned knowledge graph beside hybrid chunk retrieval so multi-hop questions can join entities across documents, with per-user ACL at query time, required citations, refuse-when-empty, and golden sets plus CI evals — delivered as a 4-week scoped implementation in the client cloud with client-owned IP.
Why teams pick this engagement
RAG × EnterpriseACL on nodes and edges
Graph traversal uses the asking user’s entitlements. A path through a document you cannot open is not a path.
Prove it on multi-hop questions
We keep chunk RAG as the control. GraphRAG ships only where the golden set shows multi-hop misses that the graph actually fixes.
Graph plus hybrid search
Entity graph for joins; BM25 plus embeddings for local evidence. Graph-only retrieval fails identifiers and prose.
Ontology owners, not just ML
Domain owners review entity types and relations. A graph nobody will correct becomes a hallucination with extra structure.
Four-week scoped slice
One domain, one relation set, chunk baseline, graph path, evals, handover. Broader ontologies are later slices.
Cite the edge and the span
Answers cite source passages and the relation used. Empty or unauthorized traversal refuses.
Key takeaways
- 01
GraphRAG is for multi-hop joins chunk retrieval misses. It is not the default for policy Q&A that a hybrid index already answers.
- 02
Traversal must apply per-user ACL at query time. A graph that ignores document ACL is a leak with nicer diagrams.
- 03
Keep BM25 plus embeddings for local evidence. The graph finds the path; spans still have to be retrieved and cited.
- 04
Standard scoped slice is four weeks in your cloud. You own the graph, indexes, and IP. No shared training. You pay inference.
- 05
CI evals include multi-hop questions with gold edges and gold passages. If the graph does not beat the chunk baseline, we do not ship it.
What the engagement covers
How we work
- 01
Discover
Week 1: multi-hop question sample, chunk-RAG baseline, entity types, ACL sources, go/no-go.
- 02
Design
Ontology, extraction, graph store in your cloud, hybrid evidence path, traversal ACL, evals.
- 03
Build
Week 2: extraction pipeline, graph, hybrid index, traces of paths and spans.
- 04
Validate
Week 3: shadow-mode vs chunk baseline; CI on edges, hit@k, faithfulness, ACL.
- 05
Enable
Week 4: ontology runbooks, IP handover, 30 days on-call.
Take the playbook with you
The working documents from real engagements — free, in exchange for an email. They’re useful whether or not we ever talk.
Chunk RAG vs GraphRAG Decision Guide
When multi-hop questions justify a graph, and when better chunking and hybrid search are enough.
Get the guide ·GraphRAG Golden-Question Template
How we write multi-hop questions with gold entities, gold edges, and gold passages for CI evals.
Get the template ·