Progress Semaphore
Progress Semaphore: A mature platform for ontology management, semantic enrichment, and enterprise knowledge graphs. Ranked #3 of 33 in Knowledge Graph Software by our editors (9.0/10); pricing: Pricing on request · 30-day trial; best for mature ontology and semantic-classification teams.
At a glance
- Editor score9.0 / 10
- PricingPricing on request · 30-day trial
- Best forMature ontology and semantic-classification teams
- Free planNo
- Semantic reasoningYes
- Founded1981 · Burlington, Massachusetts, USA
- Facts checked21 Sep 2026
Where it wins
- Covers ontology, taxonomy, thesaurus, RDF, and SPARQL workflows
- Adds classification, fact extraction, enrichment, visualization, and mapping
- Supports web, Windows, Linux, APIs, and cloud, on-premises, or hybrid deployment
Where it doesn't
- Contact-sales pricing makes plan comparison less immediate
- Its enterprise focus may exceed the needs of smaller teams
- Development is limited to demos, development, and capability evaluations
Our verdict on Progress Semaphore
Progress Semaphore is a semantic AI platform for enterprises managing knowledge models, ontologies, taxonomies, controlled vocabularies, thesauri, and metadata. It is suited to teams building enterprise knowledge graphs, semantic search, metadata management, data enrichment, and AI grounding workflows. The product combines web-based modeling and governance tools with RDF import and export, SPARQL query and update editing, model visualization, tree views, mapping, linked-data reuse, and integration APIs. It is offered for web, Windows, Linux, and API-based environments, with cloud, on-premises, or hybrid deployment options.
Its strongest case is breadth across the semantic workflow. Rules-based document classification, fact extraction, and semantic metadata enrichment extend the platform beyond ontology design, while visualization and mapping help teams work with concepts and relationships. Integration options include MarkLogic, Apache NiFi, OpenText, SharePoint Online, Sitecore, Solr, and WAND. That combination fits organizations that need to connect governed semantic models with content, data, and downstream applications rather than maintain an isolated graph repository.
The commercial structure is organized into Development, Business, and Enterprise offerings. Development is for non-production demos, development, and capability evaluations; Business targets clients with departmental capacity requirements; Enterprise provides full capacity through subscription and hosting. A 30-day free trial is available, while the paid offerings use a contact-sales model. Progress Semaphore is a strong fit for mature ontology and semantic-classification teams that need broad modeling, enrichment, and integration capabilities. Teams seeking a narrowly focused or simpler tool may find its enterprise-oriented scope unnecessary.
Your product? Our editors can test Progress Semaphore in depth and publish a review, labelled as paid · from $149/mo →
Progress Semaphore pricing
All 3 Progress Semaphore plans and prices →
Progress Semaphore fact sheet
| Free plan | No |
|---|---|
| Paid from | Not verified |
| Ontology modeling | Yes |
| Semantic reasoning | Yes |
| RDF/SPARQL support | Yes |
| Graph visualization | Yes |
| Import formats | RDF, Excel spreadsheets |
| Deployment | Both |
| Query languages | SPARQL |
| Free trial | 30 days |
| Deployment | Cloud, Self-hosted |
| Platforms | Web, Windows, Linux |
| Compliance & security | SOC 2 |
| Support | Community, Docs |
| Built for | Mid-market, Enterprise (editorial estimate) |
| Integrations | 7 integrations: MarkLogic, Apache NiFi, OpenText, SharePoint Online, Sitecore, Solr … See all → |
| Pricing | Pricing on request · 30-day trial (source) |
| Website | progress.com |
| Facts checked | 21 Sep 2026 |
Progress Semaphore integrations
Progress Semaphore lists 7 integrations on its own site.
- MarkLogic
- Apache NiFi
- OpenText
- SharePoint Online
- Sitecore
- Solr
- WAND
See all Progress Semaphore integrations →
Alternatives to Progress Semaphore
- Neo4jA developer-focused property graph with broad tooling, cloud options, and AI-ready search.9.3
- ProtégéA strong free choice for OWL ontology work, with collaboration and reasoning options.9.1
- Apache Jena FusekiAn open-source RDF server with strong SPARQL, inference, federation, and deployment options.8.9
See all Progress Semaphore alternatives →
Progress Semaphore vs the competition
- Progress Semaphore vs Neo4j
- Progress Semaphore vs Protégé
- Progress Semaphore vs Apache Jena Fuseki
- Progress Semaphore vs Stardog
- Progress Semaphore vs AllegroGraph
- Progress Semaphore vs PoolParty Semantic Suite
Compare Progress Semaphore with any tool side by side →
Also Ranked In
Progress Semaphore is ranked in 2 of our directories.
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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