What Semaku does

Semaku is a Dutch specialist consulting firm founded in 2013 and headquartered in Eindhoven that helps manufacturing and public-sector organisations structure, integrate, and publish data using W3C semantic web standards. The company works across linked data platforms, knowledge graphs, and information management, serving named clients such as NXP Semiconductors, Nexperia, Kadaster (the Dutch national land registry), Library Dommeldal, and a global semiconductor manufacturer. Engagements span data integration, custom application development, and embedded project or product-owner support, with a headcount band of 11–50 employees and a sales-led, regional go-to-market focused on the Netherlands.

The firm's technical stack centres on RDF, SPARQL, SHACL, OWL, Turtle, and JSON-LD, and includes distinctive capabilities such as SHACL-based material validation (including CAS Registry Number checksums and mass-percentage aggregation rules), SPARQL CONSTRUCT-based inferencing for IEC 62474 material classification, and advanced RDF 1.2 Turtle reification for statement-level provenance. Delivery infrastructure runs on AWS (CDK, Kubernetes, Docker, Terraform, IAM-authenticated Amazon Neptune), with Dydra used as a graph database platform in select projects. The only clearly productised asset is the eptos™ Spec Sheet Generator (SSG), co-developed with Paradine GmbH as an add-on module for the Paradine eptos™ framework; the rest of the offering is bespoke services. Documented scale metrics include 1B+ product records managed, 3.94 TB of traceability data, and 20+ integrated data sources across client deployments, with one automotive quality documentation engagement achieving over 95% master data coverage.

Semaku operates a professional services business model, generating revenue through project-based consulting, custom development, data architecture, and product owner services, with quote-based pricing that is not publicly disclosed. The company is privately held, with no disclosed external funding, parent entity, or M&A activity, and pursues a vertical segmentation approach focused on high-tech manufacturing (primary) and government and public institutions (secondary). Customer acquisition relies on direct outreach, case study visibility, technical content marketing through its blog and GitHub, and LinkedIn-based professional networking rather than paid advertising.

Name

Semaku

Legal name

Semaku B.V.

Website

https://semaku.com

Company type

Private

Founded year

2013

Operating status

Operating

Headcount range

11–50 employees

Short description

Semaku is a Dutch specialist consulting firm that helps manufacturing and government organisations integrate, structure, and publish data using W3C semantic web standards (RDF, SPARQL, SHACL, OWL) and linked data technologies, serving clients such as NXP, Nexperia, and Kadaster.

Ownership category

akta.pro rank

Product category

Semantic Web and Linked Data Consulting Services

NAICS

Computer Systems Design and Related Services (54151), Custom Computer Programming Services (541511)

SIC

Services-Computer Integrated Systems Design (7373), Services-Computer Programming Services (7371)

akta.pro primary industry

Systems Integration & Implementation Services (BPAEAAAB)

Keywords

• Linked data consulting
• Semantic web services
• Data integration solutions
• Knowledge graph development
• Product information management

Headquarters

HQ city

Eindhoven

HQ country

Netherlands

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Technology or R&D, Marketing or Sales, Operations

Revenue model

1. Professional Services (Consulting & Development): Semaku generates revenue through consulting engagements, custom application development, data architecture, project management, and product owner services. Engagements are typically scoped project-based or time-hire arrangements with enterprise and government clients in manufacturing and public sector.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels4 records

Core offering

Semaku provides structured and integrated information management services, helping manufacturing organisations connect, harmonise and publish data across siloed product and operational databases. Its offerings centre on data integration, off-the-shelf tools built on open standards, custom application development, and embedded project support, all built on W3C semantic web and linked data technologies (RDF, SPARQL, SHACL, OWL).

Product overview

Semaku offers services in structured and integrated information management rather than a single unified product. Their core offerings are service-based: Data Integration, Custom Development, and Project Support. They have one named product offering: the eptos™ Spec Sheet Generator (SSG), co-developed with Paradine GmbH as an add-on module for the Paradine eptos™ framework. They also provide off-the-shelf tools built on open standards, though no specific additional products are named.

Differentiator

Problem solved

Functional benefit

Products and services

• eptos™ Spec Sheet Generator (SSG) Co-developed with Paradine GmbH, the eptos™ Spec Sheet Generator is an add-on module for the Paradine eptos™ framework that minimises the time and effort required to render and publish technical documents from product master data. It is intended for manufacturing and engineering organisations that manage structured product data and need to produce consistent technical documentation.
• Linked Data Intelligence Application A faceted search and query application that connects multiple data sources through a semantic data hub, enabling business intelligence insights across previously siloed databases. Used by NXP Semiconductors for quality analysis at scale.
• Automotive Quality Documentation Automation Platform A cloud-native, rules-driven automation platform for automotive quality documentation (PPAP, APQP, PSW, CDCQ) compliant with IATF 16949 and AEC-Q100/Q101, achieving over 95% master data coverage and near-zero manual intervention in document generation.
• Kadaster Linked Open Data Platform A linked data platform exposing the Dutch national address (BAG), topographic base (BRT) and cadastral map (BRK) registries as standards-compliant linked open data, enabling cross-dataset querying and programmatic access for government, developers and the public.
• Library Dommeldal Genealogy Application A linked data genealogy application that connects historical records (births, marriages, deaths) into a unified knowledge graph, presenting each person as an interactive timeline and enabling library visitors to explore family trees without specialist knowledge.

Quantifiable outcome

• 95%+ automotive master data coverage in automated documentation pipeline
• +2 more outcomes

Named customers5 records

Segments2 records

Ideal customer profiles2 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Two partnerships are on record, tiered core.

• Paradine GmbHcoreStrategic or Co-development PartnerSemaku co-developed the eptos™ Spec Sheet Generator (SSG) with Paradine GmbH. The SSG is offered as an add-on module for the Paradine eptos™ framework, enabling rendering and publishing of technical documents from product master data. This is the company's primary branded product offering.
• Amazon Web Services (AWS)coreTechnology or IntegrationSemaku deploys its applications and customer solutions on AWS infrastructure. Demonstrated expertise includes AWS CDK, Kubernetes, Docker, Terraform, and IAM-based authentication for Amazon Neptune SPARQL endpoints.

Scale indicators5 records

Recent moves7 records

Expansion highlights5 records

Emerging players

• Ontotext: Bulgarian vendor of the GraphDB semantic graph database and related knowledge graph tooling. Comparable on the W3C semantic technology stack and target use cases (enterprise data integration, knowledge graphs).
• Franz Inc: Vendor of AllegroGraph and Gruff, semantic graph database and visual analytics tools for knowledge graph use cases. Comparable at the W3C-stack platform layer serving enterprise integration workloads.
• Metaphacts: German knowledge graph application platform focused on enterprise data fabric scenarios built on RDF/SPARQL. Comparable at the platform and use-case layer (linked data applications for enterprise clients).
• Stardog: Enterprise knowledge graph platform vendor whose technology stack (RDF/SPARQL/OWL) directly overlaps Semaku's core technology. Comparable at the platform layer; competes for the same enterprise data integration budgets.
• data.world: Enterprise data catalog and knowledge graph platform with linked-data underpinnings. Comparable as a buyer of the same semantic technology stack and as an alternative route for enterprises solving data integration problems.

Direct peers

• TopQuadrant: US-based semantic web and knowledge graph solutions firm offering consulting, technology and SHACL/SPARQL-based tooling. Most directly comparable to Semaku given similar W3C-stack specialisation and enterprise/government client base.
• Semantic Web Company (PoolParty): Austrian vendor of the PoolParty knowledge graph platform and semantic AI suite with associated consulting services. Comparable European peer operating in the same RDF/SPARQL/ontology space with a more productised offering.

Broad incumbents

• Capgemini Engineering: Large systems integrator with a data and digital engineering practice covering semantic technologies and PLM/data integration in manufacturing. Comparable as a much larger alternative vendor competing for similar enterprise data integration RFPs.
• Cambridge Semantics (Altair): Enterprise knowledge graph and data fabric vendor (now part of Altair) operating broadly across the same linked-data integration space Semaku serves, but with a much larger installed base and product portfolio.

Regional players

• Tietoevry: Nordic-headquartered IT services and systems integration firm with strong presence across the Nordics and Netherlands. Comparable as a regional SI competitor for Dutch enterprise and government data integration engagements.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• GitHubgithub.com/semaku
• LinkedInlinkedin.com/company/semaku
• Xx.com/semaku

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Semaku