From flask to fermenter, faster, with better strains
Deltra Labs is an industrial biotech CRO based in the Netherlands. We develop fermentation processes from scratch and improve microbial strains using non-GMO classical methods for pharma, food, feed, and chemical industry clients.
Non-GMO approach
Bacteria · Yeast · Fungi
Scale-up to 10L
Timo responds within 1 business day.
20+
10L
3

CRO projects completed across professional history
Max bioreactor scale
Biotech labs established troughout career
Patents & publications
What we do
Four ways Deltra Labs accelerates your industrial biotech programme.
Organisms we work with
Bacteria
- E. coli
- Bacillus
- Corynebacterium
- Streptomyces
- lactic acid bacteria
- novel isolates
Yeasts
- Saccharomyces cerevisiae
- Pichia pastoris
- Yarrowia lipolytica
- Kluyveromyces
- novel isolates
Filamentous Fungi
- Aspergillus
- Penicillium
- Trichoderma
- Rhizopus
- novel isolates
How a project with Deltra Labs works
1
2
3
4
5
Feasibility call
30 minutes, fully confidential, no NDA required to start
Proposal & protocol
Research execution
Sample & report delivery
Scale-up support
Clear milestones, budget, and go/no-go decision points
Regular progress updates directly from Timo
Full raw data, analysis, and written report
Optional: transfer to pilot scale or interim R&D support
Questions we hear often
Who owns the IP and improved strains?
All strains, process data, and intellectual property developed during your project are fully assigned to you at project close. Deltra Labs retains no rights to your project output.
Can you work with confidential or proprietary organisms?
Yes. We sign a mutual NDA before any technical discussion begins. Your organisms and project details are handled with complete confidentiality.
Do you support regulatory submissions?
We provide complete strain pedigree documentation and process characterisation data. Our classical strain improvement approach avoids GMO classification in most regulatory frameworks, giving you full flexibility.
Can Deltra Labs also work as an interim R&D partner, not just a CRO?
Yes. In addition to contract research projects, Timo is available for interim R&D assignments — including setting up new research facilities, developing in-house analytical methods, and scaling fermentation processes.

Who you work with
Timo van Roosmalen
Timo founded Deltra Labs after years of hands-on experience in industrial biotechnology. He has contributed to multiple patents and scientific publications, established three biotechnology laboratories, and successfully scaled fermentation processes from shake flask to 300L bioreactor across more than 20 CRO and R&D projects. His focus is on practical, results-driven bioprocess work, bridging the gap between promising scientific ideas and robust, scalable production processes.
Multiple patents & publications
Based in the south of the Netherlands. Available for CRO projects and interim R&D assignments across Europe.
3 biotech labs established
Scaled to 300L bioreactor
Ready to talk about your project?
A 30-minute feasibility call is free, fully confidential, and requires no NDA to start. Timo will respond within one business day.



