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Institute of Entrepreneurship (TIE) at Hamburg University of Technology (TUHH). Research and teaching in technology entrepreneurship, startup engineering, deep tech innovation, and entrepreneurial finance.
Keywords

Entrepreneurship Hamburg, Startup Hamburg, Deep Tech Hamburg, Entrepreneurship Science, Technology Entrepreneurship, TUHH Entrepreneurship, Gründung Hamburg, Startup Forschung Hamburg, Technologie-Entrepreneurship, Startup Engineering, Entrepreneurial Finance, Innovation Hamburg

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Institute of Entrepreneurship

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We advance innovation and entrepreneurship through rigorous empirical research,
a scientific approach to entrepreneurship education,
and practice-oriented collaborations
— shaping the next generation of Startup Engineers.

Recent News

AI-InnoScEnCE consortium meeting in Novi Sad

03.09.2026Research Project
AI-InnoScEnCE Consortium Meets in Novi Sad
Project meeting and second Stakeholder Engagement Workshop at the University of Novi Sad.

Daniel Zavala Salazar

06.07.2026Research Visit
Visiting Researcher from Mexico
Daniel Zavala Salazar explores the entrepreneurial strategies of academic spin-offs.

PhD Thesis Oliver Mork

15.10.2025PhD Thesis
PhD Thesis of Oliver Mork
Causal Analyses on Entrepreneurial Intention, Success, and Failure.
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Current Courses

Entrepreneurial Finance Funding, valuing and governing young innovative companies Oct 1, 2026 Entrepreneurship

Entrepreneurial Finance © Worldspectrum, Pexels

6 ECTSMaster
Entrepreneurial Finance
Christoph Ihl
Funding, valuing and governing young innovative companies

Deep Learning for Social Analytics Measuring, modeling and interpreting social interactions with deep learning on text and graphs Oct 1, 2026 Data Science

Deep Learning for Social Analytics © BarabásiLab

6 ECTSMaster
Deep Learning for Social Analytics
Christoph Ihl, Jürgen Thiesen, Jonas Wilinski
Measuring, modeling and interpreting social interactions with deep learning on text and graphs
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Featured Research

The Science Data Lake: A Unified Open Infrastructure Integrating 293 Million Papers Across Eight Scholarly Sources with Embedding-Based Ontology Alignment Scholarly data are largely fragmented across siloed databases with divergent metadata and missing linkages among them. We present the Science Data Lake, a locally-deployable infrastructure built on DuckDB and simple Parquet files that unifies eight open sources - Semantic Scholar, OpenAlex, SciSciNet, Papers with Code, Retraction Watch, Reliance on Science, a preprint-to-published mapping, and Crossref - via DOI normalization while preserving source-level schemas. The resource comprises approximately 960GB of Parquet files spanning ~293 million uniquely identifiable papers across ~22 schemas and ~153 SQL views. An embedding-based ontology alignment using BGE-large sentence embeddings maps 4,516 OpenAlex topics to 13 scientific ontologies (~1.3 million terms), yielding 16,150 mappings covering 99.8% of topics (≥ 0.65 threshold) with F1 = 0.77 at the recommended ≥ 0.85 operating point, outperforming TF-IDF, BM25, and Jaro-Winkler baselines on a 300-pair gold-standard evaluation. We validate through 10 automated checks, cross-source citation agreement analysis (pairwise Pearson r = 0.76 - 0.87), and stratified manual annotation. Four vignettes demonstrate cross-source analyses infeasible with any single database. The resource is open source, deployable on a single drive or queryable remotely via HuggingFace, and includes structured documentation suitable for large language model (LLM) based research agents. 2026 Working Paper Jonas Wilinski

The Science Data Lake: A Unified Open Infrastructure Integrating 293 Million Papers Across Eight Scholarly Sources with Embedding-Based Ontology Alignment

Working Paper
The Science Data Lake: A Unified Open Infrastructure Integrating 293 Million Papers Across Eight Scholarly Sources with Embedding-Based Ontology Alignment
Jonas Wilinski
(2026)

Organizing Entrepreneurial Teams: A Field Experiment on Autonomy over Choosing Teams and Ideas Organization Science, 34(6), 2097-2118 2023 Journal Article Viktoria Boss, Linus Dahlander, Christoph Ihl, Rajshri Jayaraman

Organizing Entrepreneurial Teams: A Field Experiment on Autonomy over Choosing Teams and Ideas

Journal Article
Organizing Entrepreneurial Teams: A Field Experiment on Autonomy over Choosing Teams and Ideas
Viktoria Boss, Linus Dahlander, Christoph Ihl, Rajshri Jayaraman
Organization Science (2023)

More than words! How narrative anchoring and enrichment help to balance differentiation and conformity of entrepreneurial products Journal of Business Venturing, 35(6), 106050 2020 Journal Article Alexander Vossen, Christoph Ihl

More than words! How narrative anchoring and enrichment help to balance differentiation and conformity of entrepreneurial products

Journal Article
More than words! How narrative anchoring and enrichment help to balance differentiation and conformity of entrepreneurial products
Alexander Vossen, Christoph Ihl
Journal of Business Venturing (2020)
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Affiliations

Hamburg University of Technology School of Management Science & Technology MLE @ TUHH DRUID Society Academy of Management European Group for Organizational Studies Open & User Innovation Society VHB TIE

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TU Hamburg

 

TU Hamburg

TUHH Institute of Entrepreneurship
Prof. Dr. Christoph Ihl
Am Irrgarten 3
21073 Hamburg
Contact

:   startup.engineer@tuhh.de
:   +49 (0)40 42878-3226
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