Not all funding sources are suitable for every project. Making the wrong decision can cost months of effort and work. In the case of technological innovation, it is essential to identify instruments that truly fit the type of development you want to carry out, and the CDTI PID funding can be one of them.
However, beyond simply knowing it exists, the key lies in understanding whether it fits your project, how demanding it is, and what you actually need to access it.
At The Startup CFO, we explain it to you.
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ToggleWhat is CDTI PID funding?
Before going into detail, it is important to clarify that CDTI is not a funding scheme itself, but an organization (Centre for the Development of Technology and Innovation).
Within its different funding lines, one of the main ones is the PID line (R&D Projects).
The CDTI PID line is a public funding instrument aimed at companies developing projects with a relevant technological component, focused on the creation or significant improvement of products, processes, or services.
These projects may include both industrial research and experimental development, and must involve a clear technological advancement.
Unlike other funding lines, the PID:
- Does not limit sectors
- Does not impose specific technologies
- Adapts to different business models
Additionally, it is a partially repayable funding, meaning it combines financing with a non-repayable portion, reducing the overall cost of the project.
Key features of the PID line
Before considering applying for this funding, it is essential to understand its financial structure:
Having an external CFO can often be the best solution to analyze which type of funding truly fits your project and how to structure it correctly from the outset.
| Concept | Detail |
|---|---|
| Funding | Up to 85% of the approved budget |
| Non-repayable tranche | Between 10% and 33% (direct grant component) |
| Interest rate | 1-year Euribor |
| Devolución | 10-15 years with 2-3 years grace period |
| Anticipo | Up to 50% (max. 300.000€), often without additional guaratees |
This means that the CDTI PID funding not only finances the project but also improves the company’s financial structure during execution.
What type of projects does the CDTI PID line fund?
Not every project is eligible. The main criterion is clear: there must be real and applicable technological innovation.
Within the PID line, different modalities are considered:
- Individual projects
- National cooperation projects (2 to 6 companies)
- International projects (EUREKA, IBEROEKA, etc.)
- European projects linked to Horizon Europe
- Strategic large-scale projects
Regardless of the format, the project must:
- Have a well-structured technical development
- Generate real technological advancement
- Include a clear commercial application
Improving existing processes is not enough. There must be a significant technological leap.
Requirements to access the PID line
Eligibility for a PID project is based on a strong level of innovation, supported by a properly structured development plan.
General requirements
- Minimum budget: €175,000
- Duration: 12 to 36 months (up to 48 in cooperation)
- Open call all year round
- Application of the incentive effect
This last point is critical:
CDTI only funds projects that start after the application is submitted, as its goal is to act as a financial partner in projects that would not be carried out without this support.
Technical requirements
- Technology readiness level (TRL approximately between 2 and 5)
- Degree of innovation
- Commercial exploitation plan
Financial requirements
- Company’s financial strength
- Execution capacity
- Risk analysis
Not only the project is evaluated, but also the company’s real ability to execute it.
Eligible costs under the PID line
The PID line covers a wide range of costs, as long as they are directly linked to the R&D project:
- Technical personnel costs
- Equipment and instrumentation
- Research subcontracting
- Specialized consulting
- Patents and external knowledge
- Indirect costs
It may also include:
- Audit report
- DNSH report (only if co-financed with EU funds)
Important: External collaborations cannot exceed 65% of the eligible budget.
Having a fractional CFO can often be the best solution to analyze which type of funding truly fits your project and how to structure it correctly from the outset.
How to apply for CDTI PID funding step by step
Define the project properly
Eligibility does not depend only on the idea, but on how the development is structured.
The project must clearly define:
- Technical objectives
- R&D activities
- Technological risk
- Expected results
This is where many companies fail: not in the project itself, but in how it is structured.
Prepare the documentation
Unlike other funding schemes, it is not necessary to have everything fully closed from the start, as the project can still be in a conceptual phase.
However, it is essential to:
- Ensure technical consistency
- Clearly define scope
- Maintain traceability of progress and costs
This will be critical during the justification phase.
Submit the application
The call is open all year round, allowing flexibility.
However, this does not mean you should apply at any time. Ideally, you should apply when:
- The project is well defined
- There is technical consistency
- The company is ready to execute it
Evaluation by CDTI
The process follows this order:
- Assessment of the company’s financial capacity
- Technical and economic analysis of the project
During this phase, additional information may be requested.
The speed and quality of responses directly impact the timeline.
Approval, execution and justification
If the project is approved, the funding is formalized and execution begins.
At the end, it is mandatory to:
- Submit a technical report detailing the developments achieved
- Justify costs through a ROAC auditor report
CDTI requires strict control over the use of funds.
Common mistakes when applying for PID
This is where most opportunities are lost:
✘ Submitting a project without sufficient innovation
✔ CDTI funds technological development, not operational improvements
✘ Not justifying the commercial impact
✔ You must explain how the development will generate business
✘ Inconsistency between budget and project
✔ The numbers must reflect the actual development
✘ Poorly prepared documentation
✔ The technical report is the key evaluation element
In many cases, the issue is not the project, but how it is presented.
When does it make sense to apply for a PID?
Not all companies are at the right stage.
It makes sense when:
- You are developing proprietary technology
- There is a clear technical roadmap
- You can execute a mid-term project
- You need to finance technological development
It does not make sense when:
- There is no real technological innovation
- The focus is commercial rather than technical
- There is no execution capacity
If you believe this is not the right funding option, you can explore other CDTI funding programs to find a better fit.
Advantages and limitations of the PID funding
🟢 Advantages
High funding capacity
Covers up to 85% of the project, reducing the need for own capital.
Non-repayable component
Includes a grant-like portion, reducing the effective cost.
Sector flexibility
No restrictions on sector or technology.
Open call
Can be applied for at any time.
🔴 Limitations
Demanding evaluation
Requires a strong technical and financial proposal.
Financial structure required
The company must demonstrate execution capability.
Compatibility constraints
May be incompatible with other public funding for the same project.
Differences between PID and other CDTI funding lines
Not all CDTI lines serve the same purpose:
- PID → technological development
- Neotec → creation of tech startups
- LIC → applied innovation
- Cervera → collaboration with research centers
- Innvierte → equity investment
Choosing the wrong one is one of the most common mistakes.
How can The Startup CFO help you with the CDTI PID grant?
Companies that successfully obtain this funding are not only the most innovative but also those that know how to turn their project into a solid case aligned with CDTI criteria.
At The Startup CFO, as a fractional CFO, we help companies to:
- Assess their fit with CDTI
- Properly define the project
- Prepare all documentation
- Optimize their funding strategy
If you are considering applying for this funding, we can help you do it right from the start.
Book a call with our team to get started.



