Stardog

Spec sheet

What it does

Stardog is a semantic AI and enterprise knowledge-graph platform that unifies data and adds business context for analytics, applications and AI.Read 14 Oct 2026 · stardog.com

Purpose

Stardog connects enterprise data into a semantic layer for AI, analytics, search, and applications.Read 1 Oct 2026 · stardog.com

Deployment

Stardog can run as a managed AWS cloud service, in customer cloud environments, or on premises through Docker, Kubernetes, AWS Marketplace, and Azure Marketplace.Read 1 Oct 2026 · stardog.com

API

Unified data is exposed through a REST API and a SQL-compatible BI server.Read 14 Oct 2026 · stardog.com

Integrations

Connectors cover databases including Snowflake, BigQuery, Oracle, PostgreSQL, MongoDB, Elasticsearch, Salesforce, Jira, Splunk, and REST sources.Read 1 Oct 2026 · stardog.com

Support

Enterprise licenses include base support, a dedicated Customer Success representative, and access to Solutions Architects.Read 1 Oct 2026 · stardog.com

License

Stardog Free is proprietary, licensed software and the pricing FAQ explicitly says it is not open source.Read 14 Oct 2026 · stardog.com

Headquarters

New York, New York, United StatesRead 28 Sep 2026 · stardog.com

Founded

2006Read 28 Sep 2026 · stardog.com

AI and machine learning

Built-in capabilities include Voicebox LLM assistance, similarity search and predictive analytics.Read 14 Oct 2026 · stardog.com

AI features

Stardog Voicebox uses large language models for knowledge-graph modeling, maintenance, and query writing, while built-in machine learning provides similarity search and predictive analytics.Read 1 Oct 2026 · stardog.com

BI integrations

The BI/SQL server is documented for Tableau, Power BI, cumul.io, Apache Superset, Siren, IBM Cognos, Metabase and RapidMiner.Read 14 Oct 2026 · docs.stardog.com

BI support

Officially supported BI tools include Tableau, Power BI, cumul.io, Apache Superset, Siren, IBM Cognos, Metabase, and RapidMiner.Read 1 Oct 2026 · docs.stardog.com

Company headquarters

The current LinkedIn company profile lists headquarters in New York, New York, while Stardog’s own footer lists an Arlington, Virginia address.Read 14 Oct 2026 · linkedin.com

Company legal name

Crunchbase identifies the legal name as Stardog Union and lists it as an active for-profit private company.Read 14 Oct 2026 · crunchbase.com

Company size

LinkedIn lists Stardog at 51–200 employees.Read 14 Oct 2026 · linkedin.com

Connectors

Stardog connects to more than 80 enterprise sources and offers a generic REST connector for bespoke applications.Read 14 Oct 2026 · stardog.com

Data quality

Data-quality constraints use the SHACL open standard to validate, flag and prevent inconsistent RDF data.Read 14 Oct 2026 · stardog.com

Database scale

The vendor states its ACID graph database supports near-real-time responses for up to 100 billion data points per installation and federation up to 1 trillion triples.Read 14 Oct 2026 · stardog.com

Documentation depth

Official documentation includes administration, querying, virtualization, inference, constraints, tutorials, API references, examples and application-building guidance.Read 14 Oct 2026 · docs.stardog.com

Explorer

Stardog Explorer lets users search, build visual queries and inspect relationships without writing graph queries.Read 14 Oct 2026 · stardog.com

Free-plan exclusions

The free license omits high availability, caching, backups, LDAP integration, the full connector breadth and paid support packages.Read 14 Oct 2026 · stardog.com

Free-plan limitation

Stardog Free is available for commercial use but excludes high availability, caching, backups, LDAP integration, and the full breadth of Connectors.Read 1 Oct 2026 · stardog.com

Funding news

A January 3, 2018 release said Stardog added $3 million from Tenfore Holdings, bringing its Series A total to $9 million.Read 14 Oct 2026 · prweb.com

Inference

Its Inference Engine applies business rules at query time and exposes the logic behind results for explainability.Read 14 Oct 2026 · stardog.com

Integration examples

Listed connectors include Cassandra, Hive, AWS services, Databricks, Elasticsearch, BigQuery, Jira, MongoDB, Oracle, PostgreSQL, Salesforce, Snowflake, Spark SQL and Teradata.Read 14 Oct 2026 · stardog.com

Limit: G2 cost and operations

G2 reviews mention high enterprise pricing, high compute needs for large loads, memory problems, occasional crashes or backend failures and requests for multi-tenancy.Read 14 Oct 2026 · g2.com

Limit: G2 setup and usability

G2 reviewers report complex, time-consuming setup, an overwhelming or unfriendly interface and a substantial learning curve.Read 14 Oct 2026 · g2.com

Limit: value perception

GetApp reports a 3.8/5 value-for-money score despite a 5.0/5 overall score.Read 14 Oct 2026 · getapp.com

Ontology modeling

Stardog Designer provides a no-code visual environment for connecting, mapping, modeling and publishing data.Read 14 Oct 2026 · stardog.com

Praise: G2 themes

G2 reviewers repeatedly praise data integration and visualization, semantic RDF/OWL support, virtualization, responsive support and workflow improvements.Read 14 Oct 2026 · g2.com

Praise: GetApp feature scores

GetApp users rate data integration, migration and quality control 5.0/5, data security 4.5/5 and metadata management 4.0/5.Read 14 Oct 2026 · getapp.com

Query standards

The platform supports SPARQL, SPARQL* and GraphQL over W3C RDF standards.Read 14 Oct 2026 · stardog.com

Rating on Capterra

5.0 out of 5 from 7 reviewsRead 14 Oct 2026 · capterra.fr

Rating on G2

4.2 out of 5 from 18 reviewsRead 14 Oct 2026 · g2.com

Rating on Gartner Peer Insights

0.0 out of 5 from 0 reviewsRead 14 Oct 2026 · gartner.com

Rating on GetApp

5.0 out of 5 from 7 reviewsRead 14 Oct 2026 · getapp.com

Rating on Software Advice

5.0 out of 5 from 7 reviewsRead 14 Oct 2026 · softwareadvice.com

Rating on TrustRadius

8 out of 10 from 2 reviewsRead 14 Oct 2026 · trustradius.com

Scale

The graph database supports up to 100 billion data points per installation and scale-out deployments up to 1 trillion triples.Read 1 Oct 2026 · stardog.com

SDKs

Programming documentation covers Java, Python, JavaScript, .NET, Groovy, Spring and Clojure, with an HTTP API for other languages.Read 14 Oct 2026 · docs.stardog.com

Security certifications

The product page states SOC 2 Type 2, GDPR, AWS, Azure, ATO, SIPR and JWICS validation or support.Read 14 Oct 2026 · stardog.com

Security compliance

Stardog publishes a SOC 2 Type I report covering controls relevant to systems containing Stardog Cloud customer data.Read 1 Oct 2026 · stardog.com

Self-hosting

Users can download and install a self-managed database on their own infrastructure or deploy through AWS Marketplace.Read 14 Oct 2026 · docs.stardog.com

Semantic layer

The platform creates a reusable semantic layer connecting enterprise data and meaning across systems.Read 14 Oct 2026 · stardog.com

Standards

The platform supports SPARQL, SPARQL*, GraphQL, and W3C RDF standards.Read 1 Oct 2026 · stardog.com

Uptime terms

The vendor says uptime guarantees are available only with the managed Stardog Cloud service; Enterprise Cloud advertises a 99.9% SLA.Read 14 Oct 2026 · stardog.com

Virtual graphs

Virtual Graphs query remote data live without copying it, while users can also materialize data when appropriate.Read 14 Oct 2026 · stardog.com

Virtualization

Virtualization accesses disparate on-premises or cloud data without moving or copying it.Read 1 Oct 2026 · stardog.com

Plans and prices

Every Stardog plan and price →

Where Specifiction places it

• RDF Databases#4 of 268.4
• Data Federation Software#4 of 248.4
• Data Virtualization Software#7 of 258.4
• Knowledge Graph Software#11 of 338.4