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Biological Knowledge Graphs

Biological knowledge graphs connect entities such as genes, proteins, diseases and drugs with relationships that can be queried and analyzed. Explore the methods, applications and organizations shaping this field.

Updated 26 October 2026Based on 72,153 documents
3k
Organizations active (24 mo)
-4% activity YoY
14
Startups (young or venture-backed)
30
Funding rounds (24 mo)
$82.1B disclosed
6.7k
Publications in 2025
+15% vs 2024

Biological knowledge graphs in 2026: overview

Biological knowledge graphs structure relationships across biological and biomedical data, helping researchers connect evidence that is often spread across databases, papers and experimental datasets. Their value depends on more than adding nodes and edges: useful graphs need consistent identifiers, clear semantics, provenance and reliable ways to distinguish evidence from inference. Researchers use them to support tasks such as drug discovery, disease research and clinical decision support, while graph-based reasoning can make connections easier to inspect than predictions from a model alone.

Recent work is pushing graphs toward multimodal, biology-aware reasoning. In September 2026, KG-Microbe described a modular graph for microbiome and microbial sciences, while AResKGLM applied graph-grounded language models to antimicrobial-resistance reasoning. CAREPath, published in October 2026, focuses on mechanism-aware paths for drug repurposing; other October work explores graph-grounded question answering with text-to-Cypher. These directions address persistent challenges: integrating incompatible data, controlling errors in language-model-generated graphs, and testing whether predicted links reflect plausible biology.

  • 1Connect modalities: Multi-omics graph integration is gaining momentum, reflecting demand for models that connect molecular measurements with biological context.
  • 2Ground every answer: Language-model interfaces can make graphs easier to query, but inconsistent extraction and weak provenance remain barriers to dependable biological reasoning.
  • 3Test mechanisms: Drug discovery is shifting from link prediction alone toward paths and explanations that can be checked against biological mechanisms.
Summary generated from Linknovate data on 26 October 2026.

Top organizations working on biological knowledge graphs

Ranked by Linknovate activity score · last 24 months

The activity score adds up the relevance of every patent, publication, grant and news item linking an organization to biological knowledge graphs. Showing 7 of 3,000 organizations.

#OrganizationApproachSignals (24 mo)MomentumWhy it matters
1 Multi-omics graph integration PUB 206 · NEWS 25 +26% CAS-affiliated researchers developed a rice biological knowledge graph integrated with an LLM, PertKGE for compound–protein interaction analysis, and a multimodal graph combining single-cell transcriptomics with literature evidence.
2
University of Sichuan Research · China
Curated database integration PUB 74 · NEWS 24 -37% Recently, Sichuan University researchers constructed a dynamic depression knowledge graph by fusing heterogeneous data sources; their TarKG work applies biomedical knowledge graphs to target discovery.
3 General PUB 127 · NEWS 1 -9% UCAS researchers developed a knowledge-graph-enhanced framework for pan-cancer question answering and PertKGE, which uses perturbation transcriptomics to identify compound–protein interactions.
4 Multi-omics graph integration PUB 113 · NEWS 13 -20% China Agricultural University researchers integrated a rice biological knowledge graph with an LLM and applied multimodal knowledge graphs to drug–target interaction prediction.
5
Zhejiang University Research · China
General PAT 1 · PUB 87
NEWS 21
+37% Zhejiang University researchers apply knowledge graphs and graph neural networks to drug repositioning and scientific research, including work on RiemannGNN.
6
Astrazeneca Corporate · United Kingdom
Property graph models PUB 31 · NEWS 187 -50% AstraZeneca-affiliated research examines how graph topology affects biomedical knowledge-graph completion and applies graph-based methods to drug repurposing and drug–target prediction.
7
Sun Yat Sen University Research · China
Ontology-based semantic graphs PUB 86 · NEWS 3 +28% Sun Yat-sen University researchers developed TarIKGC, a semantics-enhanced knowledge-graph completion tool for target identification, and study computational methods for chemical perturbation.
8
··Hidden organizationCompany
ApproachPAT 00 · PUB 00
GRANTS 0 · NEWS 00
+00%Available to registered users.
9
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ApproachPAT 00 · PUB 00
GRANTS 0 · NEWS 00
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10
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ApproachPAT 00 · PUB 00
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+2,993 more organizations
Including 14 startups and 2,759 universities & research centers. Filter by country, approach and maturity.

Startups to watch and leading research centers

Startups to watch 14 total

Young and venture-backed companies with the highest activity score.
  • QOMPLX Inc.United StatesQOMPLX patents federated computational graph systems for privacy-preserving analysis of genomic and other biological data across institutions.
  • Causality BiomodelsIndiaCausality Biomodels works in biocuration and knowledge extraction, with research spanning text mining, biological database graph analysis, and semantic frameworks for public-health intelligence.
  • ··
    Hidden startupCountryAvailable to registered users, with funding and founding year.
  • ··
    Hidden startupCountryAvailable to registered users, with funding and founding year.
See all 14 startups, with funding and founding year

Leading research institutions 2,759 total

Ranked by publications, patents, grants and news in the last 24 months.
  • Chinese Academy of Sciences CASChinaCAS-affiliated researchers developed a rice biological knowledge graph integrated with an LLM, PertKGE for compound–protein interaction analysis, and a multimodal graph combining single-cell transcriptomics with literature evidence.
  • University of SichuanChinaRecently, Sichuan University researchers constructed a dynamic depression knowledge graph by fusing heterogeneous data sources; their TarKG work applies biomedical knowledge graphs to target discovery.
  • University of Chinese Academy of SciencesChinaUCAS researchers developed a knowledge-graph-enhanced framework for pan-cancer question answering and PertKGE, which uses perturbation transcriptomics to identify compound–protein interactions.
  • ··
    Hidden research institutionCountryAvailable to registered users, with their key researchers.
  • ··
    Hidden research institutionCountryAvailable to registered users, with their key researchers.
See all research groups and their key researchers

Where biological knowledge graphs innovation happens

United States
35.9%
China
24.9%
United Kingdom
13.8%
Germany
12.3%
India
10.6%
Japan
9.4%
France
7.9%
Italy
6.6%
Switzerland
6.5%
Canada
5.8%
Rest of worldEurope

Share of documents with at least one organization from each country.

Open the interactive map with all 3,000 organizations

Main technical approaches

Last 24 months
ApproachWhat it isDocumentsLeading organizations
Ontology-based semantic graphsOntology-based semantic graphs use defined concepts and relationships to support consistent interpretation, but depend on ontology quality and maintenance. 607
SIBSwiss Institute of Bioinformatics, Maastricht University, Seoul National University
Property graph modelsProperty graph models attach attributes to nodes and edges for flexible representation, but may need added semantic conventions for interoperability. 129
Moore, Agentic.Ai Corporation, Allied Health Sciences Pvt Ltd
Literature-mined graphsLiterature-mined graphs extract entities and relationships from research text at scale, but extraction errors and missing context can undermine trust. 507
Cc (Creative Conspiracy), University of Sichuan, Tongji University
Curated database integrationCurated database integration connects reviewed resources, improving traceability but requiring ongoing harmonization and curation. 62
University of Chicago, Lawrence Berkeley National Laboratory, University of Colorado DenverAnschutz Medical Campus
Multi-omics graph integrationMulti-omics graph integration links molecular data types and biological knowledge, but must reconcile differences in scale, quality and identifiers. 1,012
University of Sichuan, University of Pennsylvania, Hunan University

Funding and investment

$82.1B
Disclosed private funding, 30 rounds in the last 24 months
$90.7M
Public grant funding since 2020, across 81 grants
14
Startups active in the last 24 months

Recent funding rounds

Jul 2027
Astrazeneca United Kingdom
$135MExpansion
Mar 2026
Novo Nordisk A/S Denmark
$455.3MExpansion
Month 20XX
Hidden organization Country · investors
$00MSeries X
Month 20XX
Hidden organization Country · investors
$00MSeries X
See all 30 rounds, with investors and amounts

Funding data records $90.7 million across 81 grants since 2020. The figures indicate grant support across the field, rather than a single dedicated biological knowledge graph program.

Patent landscape

Top patent holders · last 24 months
QOMPLX Inc.
10
Burzynski Stanislaw R
9
Genentech
4
Novartis
3
University Pompeu Fabra
3
See every patent holder and their full portfolio

Recent developments

Latest news, duplicates removed
Get alerts for new biological knowledge graphs developments

Frequently asked questions about biological knowledge graphs

What companies are working on biological knowledge graphs?

AstraZeneca and QOMPLX Inc. are among the named corporate participants in biological knowledge graphs. AstraZeneca-affiliated research examines graph topology and applications to drug repurposing, while QOMPLX patents federated graph systems for privacy-preserving analysis of biological data. Genentech and Novartis also appear among the patent holders in this field.

Which biological knowledge graph startups are notable in 2026?

FACTS identifies 14 startups in the field, including QOMPLX Inc. and Causality Biomodels. QOMPLX patents federated computational graph systems for privacy-preserving genomic analysis across institutions. Causality Biomodels works in biocuration and knowledge extraction, with activity spanning text mining, biological database graph analysis and semantic frameworks for public-health intelligence.

Which universities and research centers lead biological knowledge graph research?

Chinese Academy of Sciences CAS has 231 documents in the recent window, and the University of Chinese Academy of Sciences has 128. CAS-affiliated researchers have developed a rice knowledge graph integrated with an LLM, PertKGE for compound–protein interaction analysis and a multimodal graph combining single-cell transcriptomics with literature evidence. Other active groups include the University of Sichuan and China Agricultural University.

How much funding has biological knowledge graphs received?

The field has $90,734,198 recorded across 81 grants since 2020. These figures capture grants associated with biological knowledge graphs, not necessarily funding dedicated exclusively to graph technology. The data also lists 30 funding rounds, but the individual rounds include broader life-sciences and infrastructure activity, so they should not be treated as a clean measure of investment in this field.

Who holds the most biological knowledge graph patents?

QOMPLX Inc. is the leading named patent holder, with 10 patents in the data, followed by Burzynski Stanislaw R with 9. Genentech has 4, while Novartis and University Pompeu Fabra each have 3. These counts identify holders associated with the topic; they do not show the scope, status or commercial use of each patent.

Is biological knowledge graph patent activity growing?

Patent activity declined 64.7% in the latest 12-month comparison, while publication activity grew 14.7%. The contrast suggests research is expanding faster than patenting in the measured period. Patent counts alone do not establish commercial readiness, and biological knowledge graph work may also be protected through software, datasets, trade secrets or methods that are not captured by these counts.

What are the latest developments in biological knowledge graphs?

Recent work includes KG-Microbe, published in September 2026, for modular microbiome and microbial-science graphs, and CAREPath, published in October 2026, for mechanism-aware drug-repurposing paths. AResKGLM applies graph-grounded language models to antimicrobial-resistance reasoning. Other recent research investigates language-model-generated graph consistency, multimodal graph completion and text-to-Cypher question answering.

What are the main approaches in biological knowledge graphs?

The five approaches identified are ontology-based semantic graphs, property graph models, literature-mined graphs, curated database integration and multi-omics graph integration. Ontologies emphasize shared meaning; property graphs offer flexible structures; literature mining scales extraction from papers; curated integration prioritizes reviewed sources; and multi-omics integration connects distinct biological data types. Each approach trades flexibility or scale against consistency, curation effort and data quality.

Which countries lead biological knowledge graph activity?

The United States leads with 25,903 documents, followed by China with 17,998 and the United Kingdom with 9,989. Germany has 8,865 and India has 7,658. These figures reflect documents associated with the topic, rather than a direct measure of research quality, investment or commercial deployment in each country.

What are the applications of biological knowledge graphs?

The listed applications include pharmacology and safety, drug discovery and repurposing, precision medicine, clinical decision support, and disease and gene discovery. Pharmacology and safety has 4,479 documents, while drug discovery and repurposing has 997. Graphs can connect drugs, genes, diseases and other evidence to help prioritize candidates, explore mechanisms and support clinical reasoning.

Go beyond the top 7

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