Stardog
Stardog is an enterprise knowledge graph platform that unifies data across silos and delivers hallucination-free AI through proprietary Semantic Parsing, serving regulated industries including financial services, government, life sciences, and manufacturing with named customers like NASA, Morgan Stanley, and NIH.
- Company typePrivate
- Founded2017
- HeadquartersArlington, United States
- Headcount51–100
- GTM typeB2B
- OfferingSoftware
What Stardog does
Stardog is an enterprise knowledge graph platform provider that delivers semantic AI infrastructure for regulated industries. Founded in 2015 (per firmographic data, though one source cites 2017), the company is headquartered in Arlington, Virginia, with an additional New York office and a private GPU cloud facility (SKATHE) in Ashburn, Virginia. Stardog's core technology unifies enterprise data across silos without moving it, combining knowledge graph architecture with LLM capabilities through a proprietary Semantic Parsing approach that delivers hallucination-free AI responses. The platform supports structured, semi-structured, and unstructured data sources via pre-built connectors to AWS, SAP, Snowflake, Databricks, IBM DB2, Jira, and other enterprise systems, with a federated query engine enabling query-time data unification.
The product portfolio centers on the Stardog Semantic AI Platform, with Voicebox as the flagship AI Data Assistant providing natural language querying, Stardog Designer (no-code ontology creation), Stardog Cloud (SaaS deployment), and Stardog Explorer/Studio as developer tools. SKATHE provides private GPU infrastructure for regulated deployments, and Voicebox Wealth Assistant serves as a vertical-specific offering. Revenue is generated primarily through enterprise platform subscriptions, with Voicebox priced at approximately $40 per user per month for unlimited usage, supplemented by Stardog Cloud tiered subscriptions (including a free starter tier) and professional services. The company employs a hybrid go-to-market combining direct enterprise field sales, inside sales, self-serve cloud, and a partner ecosystem including Accenture (strategic investor), Databricks, and LangChain.
Stardog serves customers across financial services (Morgan Stanley), government (NASA, NIH), life sciences (Boehringer Ingelheim, NIH), manufacturing (Bosch, Verkor), aerospace/defense (RTX), publishing (Springer Nature), and education/cultural (Carnegie Mellon, Carnegie Hall) sectors. With 101-250 employees and approximately $23.3M in disclosed venture funding supplemented by a strategic Accenture investment in May 2023, Stardog operates as a privately held company under recent leadership transitions including CEO Craig Harper (appointed September 2025, former ServiceNow executive), CRO Sara Golbourn (appointed July 2025), and CPO Navin Sharma (promoted May 2026).
Stardog firmographics
Firmographics- Name
- Stardog
- Legal name
- Stardog Union
- Website
- https://stardog.com
- Company type
- Private
- Founded year
- 2017
- Operating status
- Operating
- Headcount range
- 51–100 employees
- Short description
- Stardog is an enterprise knowledge graph platform that unifies data across silos and delivers hallucination-free AI through proprietary Semantic Parsing, serving regulated industries including financial services, government, life sciences, and manufacturing with named customers like NASA, Morgan Stanley, and NIH.
- Ownership category
- akta.pro rank
Stardog industry classification
Industry- Product category
- Enterprise Knowledge Graph Platform
- NAICS
- Computer Systems Design and Related Services (54151), Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services (51821)
- SIC
- Services-Prepackaged Software (7372), Services-Computer Programming, Data Processing, Etc. (7370)
- akta.pro primary industry
- Enterprise AI Data & Knowledge Platforms (Vector Databases, Knowledge Graphs) (HDAEANAH)
- akta.pro secondary industries
- End-to-End Enterprise AI Platforms (MLOps & Model Lifecycle Management) (HDAEANAA), Model Hosting, Serving & Inference Platforms (HDAAACAB)
Keywords
Where Stardog is headquartered
LocationHeadquarters
- HQ city
- Arlington
- HQ country
- United States
- HQ region
- North America
Offices3 records
Markets served
Stardog business model
Business model- GTM type
- B2B
- Offering type
- Software
- Cost components
- Personnel, Technology or R&D, Marketing or Sales, Infrastructure, Operations
Revenue model
- Enterprise Platform Subscription: Annual or multi-year subscription licensing for the Stardog Semantic AI Platform targeting enterprise customers in regulated industries. Pricing based on user seats or enterprise agreements.
- Stardog Cloud: Cloud-hosted subscription with tiered plans including free starter tier and paid enterprise tiers with varying feature sets and user limits.
- Voicebox Enterprise: Voicebox AI assistant priced at approximately $40 per user per month with unlimited usage model (all-you-can-ask) for enterprise deployments.
- Professional Services: Implementation, training, and consulting services to support enterprise deployments and knowledge graph adoption.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Per seat | Monthly | Voicebox Enterprise - Unlimited usage model |
| Freemium | Monthly | Stardog Cloud Free Starter |
| Subscription | Annual | Enterprise Platform |
Go-to-market motion3 records
Distribution channels5 records
Marketing channels7 records
Stardog product offering
Product offeringCore offering
Stardog provides an Enterprise Knowledge Graph-powered Semantic AI Platform that unifies structured, semi-structured, and unstructured enterprise data at query time without moving or copying it. The platform combines a virtualized graph database with LLM-based semantic parsing to enable hallucination-free natural-language querying, data fabric construction, and agentic AI infrastructure for regulated enterprises. Core offerings include the Stardog Semantic AI Platform, the Voicebox AI Data Assistant, Stardog Cloud SaaS, and developer tooling (Explorer, Designer, Studio).
Product overview
Stardog offers a Semantic AI Platform that unifies enterprise data through a knowledge graph-powered semantic layer. The core product portfolio includes Stardog Voicebox (a hallucination-free AI Data Assistant), Stardog Cloud (SaaS deployment), and development tools (Explorer, Designer, Studio). Designer provides a no-code visual environment with LLM-powered ontology creation. SKATHE is Stardog's private GPU cloud infrastructure for regulated industries. The platform connects data sources across AWS, SAP, Snowflake, Databricks, Tableau, and other enterprise systems without data movement, enabling AI agents and people to access contextual, trusted data.
Differentiator
Problem solved
Functional benefit
Brands
- Voicebox: A hallucination-free AI Data Assistant powered by LLMs for enterprise knowledge graph querying and natural language interaction.
- Stardog Cloud
- Stardog Designer
- Stardog Explorer
- Stardog Studio
- SKATHE
- Voicebox Wealth Assistant
Products and services
- Stardog Semantic AI Platform The core Enterprise Knowledge Graph platform that unifies enterprise data using semantic AI, connecting data sources without moving data and providing the semantic context AI agents and humans need to query enterprise data via SPARQL or natural language.
- Stardog Voicebox An AI Data Assistant providing fast, hallucination-free answers by grounding insights in a dynamic enterprise knowledge graph via a natural-language interface. Priced at approximately $40 per user per month with unlimited usage.
- Stardog Cloud Cloud-hosted SaaS deployment of the Stardog Semantic AI Platform, providing managed infrastructure for deploying and scaling enterprise knowledge graphs with a free starter tier and paid enterprise tiers.
- Stardog Explorer Visual interface tool for exploring and querying knowledge graphs, enabling users to understand data interrelationships without requiring SPARQL expertise.
- Stardog Designer No-code visual environment for creating knowledge graphs, featuring an LLM-powered ontologist-in-a-box that generates data models from plain language prompts.
- Stardog Studio Integrated development environment for knowledge graph development with visual query plans, debugging tools, and SPARQL query writing.
- Stardog Connectors Pre-built virtual graph mappings and connectors that connect enterprise databases and systems (AWS, DB2, SAP, Snowflake, Databricks, Jira, Hive, etc.) without moving or copying data.
- SKATHE Private GPU Cloud Private GPU cloud infrastructure in Ashburn, Virginia (adjacent to AWS us-east-1), accelerated by NVIDIA, providing full-stack control over Voicebox inference for regulated-industry deployments requiring enhanced privacy and compliance.
- Stardog Karaoke On-premises deployment option for Voicebox that brings cloud-style AI data assistant capabilities to sensitive on-premise environments where data cannot leave the enterprise.
- Stardog Voicebox Appliance Hardware-form-factor appliance deployment option for Voicebox that delivers on-premises AI data assistant capabilities in a packaged form factor.
- Voicebox Wealth Assistant GenAI platform purpose-built for wealth advisors, offering a hallucination-free experience grounded in trusted enterprise data to enhance investment decision-making in banking and wealth management.
- Stardog Professional Services Implementation, training, and consulting services that support enterprise deployments of the Stardog platform and help customers operationalize knowledge graph and semantic AI adoption.
Companies that use Stardog
Customer profileNamed customers11 records
Segments4 records
Ideal customer profiles5 records
Stardog technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- Yes
- API docs
- API detail
Core technology
AI maturity
App detail
Integration10 records
AI capability11 records
Feature10 records
Stardog partnerships and signals
Strategic signalPartnerships
Five partnerships are on record, tiered core.
- Carnegie HallcorePartnership to introduce an AI-powered digital tool allowing online visitors to explore Carnegie Hall's extensive performance history through a natural language interface. The initiative covers over 62,000 performances spanning more than 130 years, enhancing accessibility and engagement with historical data.
- DatabrickscoreStrategic technology partnership where Stardog integrates with Databricks as a semantic layer and knowledge graph platform. Databricks CEO Ali Ghodsi has noted that RAG is inadequate for certain enterprise use cases, positioning Stardog's knowledge graph approach as complementary to the Databricks ecosystem. Joint customer deployments and MCP/LangChain integration showcase the partnership.
- LangChaincoreStardog has built a LangChain integration enabling semantic layer capabilities for agentic AI applications. The integration allows LangChain-based agents to leverage Stardog's knowledge graph for grounded, hallucination-free responses.
- Mike Grove (Co-Founder)coreMike Grove is Stardog's SVP Engineering & Information Security and Co-Founder, presenting on how knowledge graphs empower AI agents.
- Boehringer IngelheimcoreBoehringer Ingelheim is using Stardog to build their 'Knowledge Foundation' architecture with Enterprise Knowledge Graph Platform built on Semantic Web technologies, FAIR principles, and federated data governance. Maksim Kolchin from BI co-presents webinars on production architecture.
Scale indicators8 records
Recent moves7 records
Expansion highlights7 records
Stardog competitors and assessment
Company assessmentBroad incumbents
- Microsoft Azure Cosmos DB: Microsoft's Azure Cosmos DB includes graph APIs (Gremlin) and broader Microsoft Fabric semantic capabilities. As a hyperscaler incumbent named in knowledge graph market forecasts, it competes with Stardog in enterprise data unification and AI workloads with deep Microsoft ecosystem integration.
- Amazon Neptune: Amazon Neptune is AWS's managed graph database service supporting property graph and RDF models. As a cloud-native incumbent bundled into AWS data services, it competes with Stardog's Stardog Cloud offering with significant infrastructure and pricing advantages for AWS-centric enterprises.
- Oracle Graph Database: Oracle's graph database capabilities, part of the broader Oracle Database ecosystem, are named alongside Stardog in the knowledge graph market. Competes in financial services and large enterprise accounts with bundled pricing and deep Oracle stack integration.
Direct peers
- TigerGraph: TigerGraph is a graph database and analytics platform targeting enterprise use cases such as fraud detection, customer 360, and supply chain optimization. Competes with Stardog in the enterprise graph platform category with similar scalable architecture and analytics focus.
- Neo4j: Neo4j is the most direct competitor in graph databases and knowledge graph platforms, explicitly named alongside Stardog as a major player in market forecasts. Both target enterprise customers building graph-powered applications with similar use cases in fraud detection, knowledge management, and analytics.
- Franz Inc (AllegroGraph): Franz Inc's AllegroGraph is an enterprise knowledge graph platform supporting RDF and SPARQL with AI integration. Targets similar enterprise semantic AI use cases as Stardog, particularly where RDF/SPARQL standards and explainable AI matter for regulated buyers.
- Ontotext (GraphDB): Ontotext's GraphDB is an enterprise RDF graph database and knowledge graph platform with semantic AI capabilities. Directly comparable to Stardog in semantic standards-based enterprise knowledge graph deployments for regulated industries.
- Cambridge Semantics: Cambridge Semantics provides the Anzo knowledge graph platform for enterprise data integration and analytics, directly competing with Stardog in semantic layer and knowledge graph deployments for regulated industries and large enterprises.
Emerging players
- data.world: data.world is a cloud-native data catalog and knowledge graph platform that helps enterprises organize and govern data assets. Overlaps with Stardog in knowledge graph foundations and enterprise metadata management, though more focused on cataloging and governance than full semantic layer virtualization.
- WhyHow.AI: WhyHow.AI is an emerging player focused on knowledge graphs for AI and RAG applications. Targets similar hallucination-free AI use cases as Stardog's Voicebox but with a narrower, RAG-centric product focus.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks6 records
Key highlights7 records
Customer concentration
Stardog social profiles
Digital presenceStardog compliance and trust
Trust signalCompliance1 record
Stardog financial estimates
Financial estimateRevenue estimate
Valuation estimate
Stardog leadership team
Management profileNumber of profiles
Profiles13 records
Stardog funding detail
Funding detailFunding overview
Funding rounds6 records
Investors9 records
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Stardog M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Stardog
What does Stardog do?
Stardog provides an Enterprise Knowledge Graph-powered Semantic AI Platform that unifies structured, semi-structured, and unstructured enterprise data at query time without moving or copying it. The platform combines a virtualized graph database with LLM-based semantic parsing to enable hallucination-free natural-language querying, data fabric construction, and agentic AI infrastructure for regulated enterprises. Core offerings include the Stardog Semantic AI Platform, the Voicebox AI Data Assistant, Stardog Cloud SaaS, and developer tooling (Explorer, Designer, Studio).
Is Stardog a public or private company?
Stardog is a private company. It is classified as venture growth investor backed and is currently operating.
When was Stardog founded?
Stardog was founded in 2017. It employs 51 to 100 people.
Where is Stardog based?
Stardog is headquartered in Arlington, United States, in the North America region.
How does Stardog make money?
Four revenue lines are on record. Enterprise Platform Subscription is the primary driver. The others are stardog Cloud, voicebox Enterprise and professional Services.
Who are Stardog's main competitors?
Broad incumbents on record are Microsoft Azure Cosmos DB, Amazon Neptune and Oracle Graph Database. Direct peers are TigerGraph, Neo4j, Franz Inc (AllegroGraph), Ontotext (GraphDB) and Cambridge Semantics. Emerging players are data.world and WhyHow.AI.
Does Stardog have an API?
Yes. Stardog provides a developer API accessible via Python (pystardog library), SPARQL query language, and supports programmatic access for building and querying knowledge graphs. The platform allows developers to generate SPARQL queries from natural language, create data models, write inference rules, and execute queries programmatically. Developer documentation is at docs.stardog.com.
What industry is Stardog in?
Stardog's product category is Enterprise Knowledge Graph Platform. Its primary akta.pro industry code is HDAEANAH, Enterprise AI Data & Knowledge Platforms (Vector Databases, Knowledge Graphs), with a secondary code of HDAEANAA, End-to-End Enterprise AI Platforms (MLOps & Model Lifecycle Management). Its NAICS code is 54151 and its SIC code is 7372.