Best Entity & Knowledge Graph Agencies (2026)

Agencies that specialize in entity optimization, structured data, and knowledge graph positioning for AI citation.

Compare 17 Entity & Knowledge Graph agencies below. Browse detailed profiles including services, specializations, and locations.

How to Choose a Entity & Knowledge Graph Agency

When evaluating Entity & Knowledge Graph agencies, prioritize those with experience in your industry, expertise across the AI platforms most relevant to your audience, transparent pricing, and a clear approach to reporting. Look for agencies that offer clear reporting on AI visibility metrics and have a track record of sustainable optimization strategies.

Top 17 Entity & Knowledge Graph Agencies

#1 EntityGraph Labs

Rating: ★★★★★ 4.7/5 from 14 reviews

Knowledge graph GEO. Proprietary EntityMapper for AI model entity recognition.

Location: Boston, MA | Team Size: 10-20 | Hourly Rate: $175-$325

Services: Knowledge Graph Building, Entity Optimization, AI Entity Recognition, Schema Strategy

#2 Milestone Inc.

Rating: ★★★★★ 4.7/5 from 10 reviews

Proprietary schema + local GEO platform. Multi-location hospitality and healthcare specialists.

Location: San Francisco, CA | Team Size: 100-200 | Hourly Rate: $125-$225

Services: Schema Platform, Local GEO at Scale, Content Management, Social Media

#3 Alpine Entity Systems

Rating: ★★★★★ 4.7/5 from 10 reviews

Zurich knowledge graph engineering. Swiss precision entity structures for B2B verticals.

Location: Zurich, Switzerland | Team Size: 10-20 | Hourly Rate: $200-$350

Services: Knowledge Graph Engineering, Entity Systems, Structured Data, B2B Entity Strategy

#4 Isar Tech GEO

Rating: ★★★★★ 4.7/5 from 18 reviews

Munich entity specialists. German engineering and automotive knowledge graph optimization.

Location: Munich, Germany | Team Size: 10-20 | Hourly Rate: $150-$275

Services: Entity Knowledge Graph, Industrial GEO, Structured Data, Technical Content

#5 Tejo Labs

Rating: ★★★★★ 4.6/5 from 18 reviews

Lisbon entity optimization lab. Data science approach to knowledge graph building for AI.

Location: Lisbon, Portugal | Team Size: 10-20 | Hourly Rate: $100-$200

Services: Entity SEO, Knowledge Graph Building, Semantic Web, Structured Data

#6 Citationflow

Rating: ★★★★★ 4.6/5 from 12 reviews

Purpose-built for AI citations. Entity authority and knowledge graph GEO.

Location: Austin, TX | Team Size: 10-20 | Hourly Rate: $175-$325

Services: Citation Strategy, Knowledge Graph Optimization, Entity Authority, Content Architecture

#7 Crescent Entity Group

Rating: ★★★★★ 4.6/5 from 20 reviews

New Orleans entity optimization. Building rich AI-recognized entity authority profiles.

Location: New Orleans, LA | Team Size: 10-20 | Hourly Rate: $125-$200

Services: Entity Optimization, Knowledge Graph Building, Semantic SEO, Structured Data

#8 GraphSEO

Rating: ★★★★★ 4.5/5 from 18 reviews

Knowledge graph-first GEO. Comprehensive entity maps for full AI brand understanding.

Location: Berlin, Germany | Team Size: 10-20 | Hourly Rate: $125-$225

Services: Knowledge Graph GEO, Entity Mapping, Schema Strategy, Wikidata Optimization

#9 Bayou Entity Works

Rating: ★★★★★ 4.5/5 from 12 reviews

New Orleans entity authority. Wikidata and Knowledge Graph amplification for AI.

Location: New Orleans, LA | Team Size: 10-20 | Hourly Rate: $100-$200

Services: Entity Authority, Wikidata Optimization, Knowledge Graph, Brand Entity Building

#10 Midwest Entity Authority

Rating: ★★★★★ 4.5/5 from 16 reviews

Kansas City entity authority. Systematic brand entity coverage for Midwest enterprise.

Location: Kansas City, MO | Team Size: 10-20 | Hourly Rate: $100-$200

Services: Entity Authority Building, Knowledge Graph, Wikidata Management, Brand Entity Strategy

#11 Organic Hackers

Rating: ★★★★★ 4.5/5 from 16 reviews

Entity-driven content specialists from Amsterdam. Topical authority for niche verticals.

Location: Amsterdam, Netherlands | Team Size: 10-20 | Hourly Rate: $100-$175

Services: Entity-Driven Content, Topical Authority, Semantic Structure, Content Ecosystems

#12 WikiEntity Pro

Rating: ★★★★★ 4.5/5 from 20 reviews

Wikipedia and Wikidata GEO. Knowledge base optimization for AI reference sources.

Location: Toronto, Canada | Team Size: 10-20 | Hourly Rate: $125-$250

Services: Wikipedia Optimization, Wikidata Management, Knowledge Panel Strategy, Entity Authority

#13 Garuda AI Search

Rating: ★★★★☆ 4.4/5 from 18 reviews

Jakarta entity authority for Indonesian brands in global AI knowledge bases.

Location: Jakarta, Indonesia | Team Size: 10-20 | Hourly Rate: $50-$100

Services: Indonesian Entity Authority, Knowledge Graph, Global AI Presence, Structured Data

#14 Rio Plata Content Studio

Rating: ★★★★☆ 4.4/5 from 14 reviews

Buenos Aires LATAM entity building. Establishing brand entities in global AI knowledge bases.

Location: Buenos Aires, Argentina | Team Size: 10-20 | Hourly Rate: $50-$100

Services: LATAM Entity Building, Knowledge Graph, Wikidata Management, Brand Entity Strategy

#15 Levant AI Visibility

Rating: ★★★★☆ 4.3/5 from 18 reviews

Amman MENA GEO. Arabic AI model optimization and knowledge graph construction.

Location: Amman, Jordan | Team Size: 10-20 | Hourly Rate: $50-$125

Services: Arabic Knowledge Graphs, MENA GEO, Entity Optimization, Technical SEO

#16 Sahara Entity Labs

Rating: ★★★★☆ 4.3/5 from 10 reviews

Lagos African entity lab. Fixing AI representation gaps for African businesses.

Location: Lagos, Nigeria | Team Size: 10-20 | Hourly Rate: $50-$100

Services: African Entity Lab, Knowledge Graph, AI Representation, Wikidata

#17 Authoritas

Rating: ★★★★☆ 4/5 from 21 reviews

UK authority optimization platform. Topical authority scoring for AI citation.

Location: London, UK | Team Size: 10-20 | Hourly Rate: $150-$250

Services: Authority Optimization, Entity SEO, Topical Authority Scoring, Content Gap Analysis

Frequently Asked Questions About Entity & Knowledge Graph

What is Entity & Knowledge Graph optimization?

Entity & Knowledge Graph optimization focuses on building and strengthening your brand's presence in the knowledge graphs that AI models use to understand entities, relationships, and authority. This includes Google's Knowledge Graph, Wikidata, and the implicit knowledge graphs within large language models.

How do knowledge graphs affect AI responses?

AI models rely on knowledge graphs to understand entity relationships, verify facts, and determine authority. Brands with strong knowledge graph presence are more likely to be accurately represented and recommended in AI-generated responses.