Horizon Europe Expert Evaluators: Role, Selection & How to Become One (2026)

Introduction

When your Horizon Europe proposal is submitted, it does not land on a Commission officer's desk. It is read, scored, and judged by independent expert evaluators — researchers, professors, and industry specialists recruited specifically for the task.

Understanding who these evaluators are, how they are selected, and what they actually experience during a review panel is one of the most underused advantages in EU grant writing. When you know how a proposal is evaluated from the inside, you can write one that is much easier to score well.

This guide covers the evaluator role end-to-end: what the job involves, how to register as an evaluator yourself, and — most practically — what the evaluator perspective tells you about writing stronger proposals.

Sources used throughout: the Horizon Europe Programme Guide and the EC Expert Database registration portal.

What Do Expert Evaluators Do?

Expert evaluators are independent specialists recruited by the European Commission to assess Horizon Europe grant proposals. They are not Commission employees — they are typically active researchers, university professors, or experienced industry professionals with relevant domain expertise.

Their core responsibilities are:

Read assigned proposals in full
Score each proposal against the three standard evaluation criteria: Excellence, Impact, and Implementation
Write an Individual Evaluation Report (IER) with scores and qualitative comments for each criterion
Participate in a consensus meeting with co-evaluators to agree on final scores
Contribute to the panel review to ensure ranking consistency across all proposals in a call

The process follows a structured sequence:

Individual evaluation — each evaluator reads and scores independently
Consensus meeting — evaluators who reviewed the same proposal discuss and reconcile scores
Panel meeting — all evaluators for a call convene (remotely or in Brussels) to finalise rankings
Evaluation Summary Report (ESR) — the panel produces per-proposal ESRs, which are the formal feedback documents sent to applicants

In a typical evaluation session, evaluators are assigned 5 to 10 proposals. Sessions run for several days and can take place remotely or in-person in Brussels depending on the call.

How Are Evaluators Selected?

The European Commission maintains a central Expert Database — a pool of registered candidates that the Commission draws on when populating evaluation panels for specific calls.

You can register at any time via the EU Funding & Tenders Portal: https://ec.europa.eu/info/funding-tenders/opportunities/portal/screen/work-as-an-expert

When the Commission is assembling a panel for a specific call or work programme topic, it selects evaluators from the database based on several criteria:

Expertise match — your declared specialisation areas must align with the call topic
Geographic balance — the Commission actively recruits from underrepresented member states and associated countries
Gender balance — panels must reflect a balanced gender composition
Rotation — the same evaluator should not assess proposals in the same call topic repeatedly, to avoid familiarity bias
Sector diversity — the Commission seeks both academic and industry/SME evaluators, particularly for innovation-focused calls (e.g. EIC Accelerator)

Registering in the database does not guarantee selection. The Commission matches your expertise profile against the specific requirements of each open call. Keeping your profile current and detailed is what maximises your chances of being contacted.

How to Register as an Expert Evaluator

Registration is open to anyone with relevant expertise in EU research and innovation. The process is straightforward:

Go to the EU Funding & Tenders Portal — https://ec.europa.eu/info/funding-tenders/opportunities/portal/screen/work-as-an-expert
Create or log in with an EU Login account — this is the single sign-on system used across all EU portals
Complete your expertise profile — select your areas of specialisation using the EC's taxonomy, add relevant keywords, and describe your professional background
Upload your CV — a clear, up-to-date CV is reviewed when you are being considered for a specific panel
Declare any conflicts of interest — you will be asked to confirm you have no conflicts with specific organisations at the time of selection, not registration
Submit — your profile is stored and the Commission's matching system will flag you when a relevant call opens

Practical tip: Treat your expert profile like a specialist LinkedIn. Generic descriptions reduce your match probability. Be specific about sub-fields, methodologies, and the types of projects you have led or participated in. Return to update your profile after major career changes or new areas of work.

Compensation and Conditions

Evaluators are compensated for their work under standard EC expert contract terms:

Daily fee: Approximately EUR 450 per day for evaluation work (rate applicable under Horizon Europe contracts — confirm current rates via the portal at the time of engagement)
Travel and accommodation: Covered by the Commission for in-person sessions in Brussels
Confidentiality agreement: All evaluators sign a non-disclosure agreement. They cannot reveal the content of proposals, scores, or the identities of other evaluators
Conflict of interest rules: Evaluators cannot assess proposals submitted by their own organisation, proposals they have contributed to, or proposals involving close professional collaborators

The confidentiality obligations are strict and permanent — evaluators are bound by them even after the evaluation is concluded. This is why specific ESR comments are deliberately general: evaluators cannot reveal deliberations or individual scoring.

The Evaluation Process from the Evaluator's Perspective

Understanding what evaluators actually go through helps you see your proposal through their eyes.

1. Briefing

Before the evaluation begins, evaluators receive a briefing document covering the specific call requirements, the scoring methodology, and the Commission's expectations for each criterion. They are told exactly what "excellent" looks like for this particular call — which means every evaluator is working from the same rubric.

2. Individual reading

Each evaluator independently reads the proposals assigned to them. In a typical remote session, this happens over two to three days. Evaluators may have 2–3 hours per proposal — sometimes less for shorter EIC-style applications, sometimes more for complex RIA proposals.

3. Individual Evaluation Report (IER)

Each evaluator writes an IER for every proposal they read. The IER includes:

A numerical score for each criterion and sub-criterion (typically 0–5 scale)
A written justification for each score, identifying strengths and shortcomings
An overall recommendation

The IER format is standardised, which means evaluators are explicitly prompted to find shortcomings — not just note what is good.

4. Consensus meeting

Where multiple evaluators have assessed the same proposal, they meet (virtually or in person) to compare their IERs and agree on a single set of consensus scores. Significant disagreements are discussed and resolved. This is not a simple average — evaluators debate and reach agreement.

5. Panel meeting

All evaluators for a call gather to review the full ranked list of proposals. This stage ensures consistency: a "4.5 on Excellence" in one sub-panel should mean the same as a "4.5" in another. The panel also handles tie-breaking and reviews proposals near the funding threshold in detail.

6. Evaluation Summary Report (ESR)

The ESR is the document you receive as an applicant. It contains:

Per-criterion scores
Brief narrative sections describing strengths and shortcomings
The proposal's overall ranking status (above/below threshold, funded/not funded)

The ESR is the only formal feedback you will receive on your proposal. The quality and specificity of ESR comments varies — but the scores are final and not subject to appeal on merit.

What Evaluators Actually Look For

Based on the standard evaluator briefing materials and the Horizon Europe Programme Guide, evaluators apply consistent interpretive principles across proposals:

Clarity over complexity. Evaluators are domain experts, but they are often not specialists in your exact sub-field. A proposal that assumes shared context will lose points not because the science is weak, but because the evaluator cannot verify it. Write for a senior colleague in an adjacent field, not for your own research group.

Structure signals professionalism. Evaluators know the template. They expect specific information in specific sections. If your impact pathway is described in the Excellence section, an evaluator scoring Impact will not find it — and cannot give credit for what they cannot locate.

Evidence over assertion. Evaluators are trained to distinguish between claims and evidence. "This approach is highly novel" is an assertion. "This approach has not been applied in X context, as confirmed by our systematic review of 200 publications (see Annex 1)" is evidence. The difference in score can be a full point.

Internal consistency. Does the work plan actually deliver the stated objectives? Does the budget match the activities? Do the milestones fall in a sequence that makes logical sense? Evaluators check these relationships explicitly — inconsistencies are flagged as shortcomings.

Shortcomings are inevitable — severity is what counts. Every proposal receives shortcomings in its ESR. The difference between a score of 4 and a score of 5 is not the absence of shortcomings but the number and gravity of them. A proposal with one minor methodological uncertainty scores higher than one with three substantial gaps, even if both are technically sound.

How Understanding Evaluators Improves Your Proposals

The evaluator perspective translates directly into actionable writing strategies:

Write for a busy, intelligent non-specialist. With 2–3 hours per proposal and 5–10 proposals per session, evaluators are under time pressure. If critical information is buried in a paragraph on page 18, it may be missed. Executive-style summaries at the start of each section, clear headings, and bullet points where appropriate all reduce cognitive load.

Address every sub-criterion explicitly. The evaluation form has specific sub-criteria. Evaluators work through them systematically. If a sub-criterion is not addressed — even if the answer is implicitly present elsewhere — they cannot score it well. Map your proposal sections to the sub-criteria in the evaluation form and make sure each one is directly, visibly answered.

Mirror the call language. Evaluators are briefed on the specific call topic, its expected outputs, and its societal goals. Using the vocabulary of the call description in your proposal signals fit. It is not about keyword stuffing — it is about demonstrating that you understand what the Commission is trying to achieve with this particular call.

Make scoring easy. Create structures that let evaluators find what they need quickly. A table summarising your team's relevant expertise for the Implementation criterion. A clear impact pathway diagram. A timeline that visibly maps milestones to objectives. If an evaluator has to reconstruct your logic from prose, your score suffers.

Treat your ESR as a revision guide. If you have submitted a proposal before and received an ESR, it is the most valuable feedback document available to you. The shortcomings listed are exactly what a panel of experts identified as weaknesses. Resubmissions that systematically address prior ESR shortcomings consistently score higher. Do not read your ESR as a rejection — read it as a specification for a stronger version.

For a deeper look at how the scoring criteria work in practice, see our guide: Horizon Europe Evaluation Criteria and Scoring Explained.

Should You Become an Evaluator?

For researchers and grant managers working in Horizon Europe, serving as an expert evaluator is one of the best professional development opportunities available. The benefits are substantial:

First-hand understanding of the review process. Reading 5–10 proposals through an evaluator's eyes — applying the scoring rubric, identifying shortcomings, debating scores in consensus — gives you an understanding of proposal quality that no guide can replicate. Most experienced evaluators report that their own grant writing improved immediately and significantly after their first panel.

Exposure to the frontier of your field. Evaluators read proposals from leading research groups across Europe working on problems at the cutting edge of the call topic. It is a privileged view of where the field is heading.

Professional network. Panel meetings bring together senior researchers and industry experts from across the continent. Evaluators often form lasting professional relationships through the process.

Fair compensation. The daily rate is not the primary motivation for most evaluators, but it is a reasonable recognition of the work involved — particularly for independent researchers or consultants.

If you are an active EU researcher or grant professional with relevant expertise, registering in the Expert Database is straightforward and carries no obligation. You can register at: https://ec.europa.eu/info/funding-tenders/opportunities/portal/screen/work-as-an-expert

Conclusion

The expert evaluator system is central to how Horizon Europe works. Thousands of independent specialists review tens of thousands of proposals each year, applying a consistent framework to determine which research gets funded.

Understanding this system from the inside — who evaluators are, what they experience, and how they apply the criteria — is a strategic advantage that most applicants never pursue. The good news is that the framework is public, the process is documented, and the lessons are transferable.

Write for a busy non-specialist. Address every sub-criterion. Distinguish evidence from assertion. Make scoring easy. Treat ESR feedback as a revision brief.

If you want to experience what this evaluator-style assessment feels like before you submit, CriteriaI applies the same Excellence, Impact, and Implementation framework to score your proposal against 55,000+ funded EU projects — giving you structured feedback on where your proposal is strong and where evaluators are likely to find shortcomings.

What Is an Expert Evaluator in Horizon Europe? (And How to Become One)