| Additive Manufacturing and Maintenance Operations Ontology | Ontology for additive manufacturing and maintenance operations. |
| Aditive Manufacturing Ontology | AMOntology describes entities that capture knowledge about characteristics of computational models for AM processes. |
| AM-CDM-Ontology-Map | Mapping of Additive Manufacturing Common Data Model (AM-CDM) to CCO. |
| Bioregistry | Community-driven meta-registry of life science databases, ontologies, and other resources. |
| BWMD Domain Ontology | Represents domain-specific information for BWMD applications. |
| BWMD Mid-Level Ontology | A mid-level ontology for BWMD applications. |
| BWMD Original Non-Modularized Ontology | The original, non-modularized version of the BWMD ontology. |
| Cognitive Process Ontology | Consists of terms representing cognitive processes – kinds of mental processes – used by intelligence analysts. |
| Cyber Information Ontology | Represents cyber information, reliability, warrant, and transmission protocols. |
| Datarec project | Dataset search engine leveraging ontologies to predicts relevant datasets for a user's input. |
| Data Set Knowledge Graph (DSKG) | RDF knowledge graph for Datasets. |
| Devices, Experimental scaffolds and Biomaterials Ontology | Represents information about devices, experimental scaffolds, and biomaterials. |
| Digital Engineering Framework for Integration and Interoperability (DEFII) | Framework for incorporating semantic web technologies into engineering design and analysis tasks. |
| Digital Twin Ontology | BFO and CCO-based foundation for digital twin phenomena. |
| DISERTO | Semantics-based Tool for Automatic and Virtual Data Integration. |
| European Materials Modelling Ontology | Represents concepts and relationships in European materials modeling. |
| Geoscience Knowledgebase (GeoKB) | Framework for assembling, organizing, growing, and reasoning (AI) knowledge about the earth system. |
| GC Data Ecosystem Ontology | Ontology for data relevant to the Government of Canada. |
| HUME | BBN's machine reading system with support from DARPA World Modelers and Causal Exploration programs. |
| Industrial Ontology Core | Represents mid-level terms for industrial manufacturing and services. |
| Industry Skills and Professions Ontology (ISPO) | Part of an ontology network connecting BFO and the Agent Ontology module of CCO to represent skills. |
| Integrated Ontology Suite | Designed to represent shared understanding of ground vehicle system simulations. |
| Intelligent Team Building Recommendation System | A team building recommender system for researchers who have similar overlapping research interests and can collaborate to work on a particular problemstatement. |
| Joint Doctrine Ontology | Represents joint doctrine to provide shared computer-accessible content valid for any field of military endeavor, organization, and information system. |
| Laser Powder Bed Fusion Ontology | Represents processes and concepts specific to laser powder bed fusion technology. |
| Mat-O-Lab container ontology | Represents container-specific information in Mat-O-Lab applications. |
| Material Properties Annotation properties including Dublin Core | Annotation properties for material properties, including those from Dublin Core. |
| Material Science and Engineering Ontology | A comprehensive ontology for material science and engineering. |
| Materials And Molecules Basic Ontology | Represents basic concepts and relationships in materials and molecules. |
| Materials Data Science Ontology | Represents concepts and relationships specific to materials data science. |
| Materials Data Vocabulary | Vocabulary for materials data. |
| Materials Design Ontology | Represents concepts and relationships in materials design. |
| Materials Mechanics Ontology | Represents concepts and relationships in the mechanics of materials. |
| Materials Mine | A repository of materials data and related ontologies. |
| MatoLab Brinell Test Ontology | Represents information specific to Brinell hardness tests in Mat-O-Lab applications. |
| Matolab Tensile Test Ontology | Represents information specific to tensile tests in Mat-O-Lab applications. |
| MatOnto Ontology | Represents comprehensive concepts in material ontology. |
| Maintenance Strategy Selection and Assessment (OMSSA) | Formal terminology framework in maintenance strategies that can be used to develop smart computational agents. |
| Mechanical testing ontology | Represents concepts and processes in mechanical testing. |
| Military Ranks Ontology | Ontology of military ranks and the authority roles, duties and responsibilities associated with those ranks. |
| Mobile Blood Collection Ontology | Modular suite of ontologies that formalize the mobile blood collection process. |
| Modular Environmental Monitoring Ontology (MEMOn) | Domain ontology built as a promising solution for the semantic interoperability between resources (human, data, software) in environmental monitoring domain. |
| Mydata ontology | Extension of the Common Core Ontologies that provides a standardized extensible semantics for representing personal data. |
| Neural Network Event Extraction | Leveraging event ontology module of CCO to NN extraction. |
| NLP Ranking | Used to rank universities based on their NLP publications on ACL Anthology. |
| Ontology of Commercial Exchange (OCE) | Designed to represent aspects of human social behavior involving purchasing, selling, marketing, and so forth. |
| Ontology of Plays for Teaming and Collaboration (OPTaC) | Domain-level ontology for the facilitation of play-based collaborative autonomy among unmanned and manned-unmanned aircraft. |
| Ontology of Relevance | Designed to represent and distinguish inferential and prescriptive relevance. |
| Operational Environment Ontology | Represents concepts and processes in mechanical testing. |
| POLARISC Ontology | Defines the Knowledge of French emergency responders who are involved in the disaster response process. |
| Pizza Ontology Project | Project space for learning ontology engineering regarding pizzas. |
| Product Life Cycle Ontologies | Ontology suite representing manufacturing product life cycles. |
| PROVO-CCO Mapping | Mapping between PROVO and CCO. |
| Rare-Earth Elements (REE) Ontology | Formalizes the interactions among the members of various magmatic, hydrothermal, basinal, regolith, and supergene subsystems. |
| Regulatory Basis for Informed Consent (RUBRIC) | Ontology representing informed consent concepts. |
| Sciumo Tech | Technology projects by Sciumo. |
| Solid Data Interoperability Panel | Panel investigating data interoperability across applications while enabling secure collaboration and query using intuitive data boundaries. |
| Space Domain Ontologies | Ontologies representing phenomena relevant to the domain of space. |
| Standard Galactic | Standard Galactic project on data interoperability. |
| Sustainable Development and Climate (SDC) Ontology | Formalizes the sustainability impacts of implementations of actions, plans, strategies, and policies. |
| The KGC Knowledge Graph | Knowledge Graph of the Knowledge Graph Conference. |
| The MatWerk ontology | Represents comprehensive concepts in material work. |
| The PMD Core Ontology | Core ontology for PMD applications. |
| Thin-film solar cell ontology | Represents concepts and relationships in thin-film solar cell technology. |
| Typedb-schema-BFO | Upper ontology, with mid- and domain-level ontologies ported to Grakn schemae. |
| User Profile Ontology | Provides a standardized extensible semantics for representing information about a person’s profile. |
| Virtual Materials Marketplace (VIMMP) Ontologies | Represents comprehensive concepts and relationships in the virtual materials marketplace. |
| Virus Infectious Disease Ontology | Represents epidemiology, classification, pathogenesis, and treatment of terms used by virologists, i.e. virus, prion, satellite, viroid, etc. |
| Wind Turbine Project | Represents wind turbine blade materials based on key performance parameters. |