Professional Business Writer
If you’re building an innovative Irish startup with genuine ambitions to go international, Enterprise Ireland’s High Potential Start-Up (HPSU) programme is the most valuable funding designation you can pursue. The equity investment, the development advisor, the international market access, and the signal it sends to private investors HPSU status is the closest thing Ireland has to a state-backed seal of approval for early-stage companies.
But it isn’t easy to get, and it isn’t automatic. The application process is detailed, the eligibility criteria are specific, and many founders make the mistake of approaching Enterprise Ireland unprepared pitching too early, with the wrong documentation, or without having built the right relationship with their Development Advisor first.
At Grand Business Plan, we help Irish startups prepare investor-ready business plans and financial projections that meet Enterprise Ireland’s standards. This is everything we know about making a successful HPSU application in 2026.
HPSU High Potential Start-Up is Enterprise Ireland’s flagship equity investment programme for early-stage companies with the potential to scale internationally and create significant employment in Ireland. Being designated as an HPSU is not just a funding event; it’s an ongoing strategic relationship with Ireland’s state trade and innovation agency.
| Programme / Item | Key Details |
| Standard HPSU Investment | €50,000–€250,000 for approximately 10% equity stake |
| Maximum Investment | Up to €800,000 (exceptional cases up to €1 million) |
| Innovative HPSU Fund | Up to €1.2 million for highly innovative companies |
| Investment Structure | Co-investment: Enterprise Ireland matches private investor funding |
| Equity Position | Enterprise Ireland takes a minority stake (typically 10–20%) |
| HPSU Feasibility Grant | Up to €30,000 (70% of eligible costs) for market research and business plan development |
| Pre-Seed Start Fund (PSSF) | Up to €100,000 convertible loan; often the step before HPSU designation |
Beyond the Money: What HPSU Status Actually Means
The financial investment is only part of the value. What many founders don’t fully appreciate until they’re in the programme is how transformative the non-financial supports are.
Access to additional instruments: HPSU designation unlocks eligibility for Innovation Vouchers, the Market Discovery Fund, the HPSU Feasibility Grant, and other Enterprise Ireland supports that aren’t available to non-HPSU companies.
International market access: Enterprise Ireland has offices in 33 markets worldwide. HPSU companies get preferential access to market entry support, trade missions, buyer introductions, and in-market event participation. Founders consistently cite this as transformative particularly for first international customer acquisitions.
Before you invest significant time in an HPSU application, be honest with yourself about whether you genuinely meet the criteria. Enterprise Ireland is clear about what they’re looking for, and applications that don’t meet the profile are declined quickly.
Company age and size: You must be a small enterprise in existence for less than five years. The programme is specifically for early-stage companies not established SMEs looking for growth funding.
Protectable IP: Some form of protectable intellectual property patents, trade secrets, proprietary software, exclusive data, or other IP that creates a defensible competitive position. This doesn’t mean you need a patent already filed, but you need a credible IP strategy.
The Innovative HPSU Fund: A Higher Bar, A Larger Cheque
The Innovative HPSU Fund is a more selective tier of the programme, available to companies with higher innovation intensity and stronger international potential. To qualify, you typically need to demonstrate one of the following:
A business plan presenting products, services or processes that are technologically new or significantly improved versus EU industry standards, with an acknowledged risk of technological or industrial failure
For companies with no trading history: At least 15% of total operating costs allocated to R&D in the current fiscal year
For companies with a trading record: At least 15% of operating costs allocated to R&D in at least one of the three prior years
Here is the complete pathway from first contact with Enterprise Ireland to HPSU designation and investment. Understanding the sequence matters enormously several founders lose time by approaching steps out of order.
Enterprise Ireland doesn’t accept cold HPSU applications. Your first task is to become an Enterprise Ireland client and be assigned to a Development Advisor who can advocate for your application internally.
Pre-Seed Start Fund (PSSF): A convertible loan of up to €100,000 in exchange for 2.5–5% equity at a future funding round. PSSF is often described as the step before HPSU it’s designed for startups with validated ideas and an MVP that aren’t yet ready for full HPSU investment. Completing PSSF successfully and hitting its milestones is a strong pathway to HPSU consideration.
Step 2: Build Your Traction and Get Investor-Ready (Months 3–8)
HPSU is not for idea-stage companies. By the time you apply, Enterprise Ireland expects to see evidence of commercial and technical progress. The key milestones to work toward before an HPSU application:
IP position: If you’re planning to rely on a patent, it should at minimum be filed (even as a provisional patent) before the application. Trade secret documentation, IP assignment agreements, and software ownership should all be cleanly in order.
MVP: A working product that has been tested with real users not just a prototype in a lab.
Early customer validation: Paying customers, signed letters of intent, or at minimum strong evidence of demand from a credible set of target customers. The more real and monetisable this evidence, the stronger the application.
The business plan is the centrepiece of your HPSU application. It is reviewed by Enterprise Ireland’s commercial team, technical team, and legal team before your Development Advisor presents your case to the Investment Committee. It must be comprehensive, credible, and tailored specifically to what Enterprise Ireland evaluates.
Use of Funds: Exactly how Enterprise Ireland’s investment will be deployed specific hires, specific market development activities, specific product milestones. Not vague categories.
International Market Analysis: Bottom-up market sizing with sourced data. Which specific international markets are you targeting first? Why? What’s the market size for your specific use case, not a global industry figure? What competitive alternatives exist in those markets?
IP Strategy: What IP you own, how it’s protected, and your plan for developing and defending the IP position over the next three years.
Step 4: Use the HPSU Feasibility Grant (if applicable)
If you’ve been designated as an HPSU client but aren’t yet ready to apply for the full equity investment, the HPSU Feasibility Grant provides up to €30,000 (70% of eligible expenditure) to fund:
This grant is specifically designed to bridge the gap between HPSU designation and investment-readiness. If you need to conduct thorough international market research or develop your MVP further before applying for equity, the Feasibility Grant can fund that work. Eligible expenditures include salaries and overheads, consultancy fees, trade fair costs, foreign travel, and prototype materials.
The formal iHPSU application is submitted at the invitation of your Development Advisor not independently initiated by the founder. When your DA believes you’re ready based on traction, investor commitments, and business plan quality they will invite you to complete the formal Application Form and Financial Data Sheet.
Supporting documents required alongside the formal application:
Step 6: Enterprise Ireland Due Diligence and Investment Committee
Following submission, Enterprise Ireland’s commercial, technical, and legal teams conduct a thorough review. The process typically takes 10–16 weeks from formal application to investment decision. Your Development Advisor presents your case to EI’s Investment Committee and is your internal advocate throughout.
During this period, be responsive to any information requests from EI. Questions about your financial model, your IP position, your customer pipeline, or your co-investor commitments are all normal parts of due diligence. Delays in responding slow the process and create a negative impression.
If approved, Enterprise Ireland and your legal representatives will work through the legal documentation: a Share Subscription and Shareholders’ Agreement, amendments to your Constitution, share allotment documentation, and CRO filings. Budget two to four weeks for legal completion after Investment Committee approval.
Enterprise Ireland’s assessment of your business plan focuses on six core dimensions. Understanding these helps you write a plan that directly addresses what matters to the people who decide whether you get funded.
Co-investment commitment: Are private investors genuinely committed? Enterprise Ireland almost never invests alone the co-investment structure is fundamental to how the programme works.
Commercial traction: Is there evidence of real customer demand not just assumed demand? Letters of intent, pilots, early revenue, and customer conversations all count here.
Common Mistakes That Derail HPSU Applications
These are the mistakes we see most often and they’re almost all avoidable.
Applying too early: Approaching HPSU before you have an MVP, early customers, and private investor commitments. The programme is not for idea-stage companies.
Treating EI as the only investor: HPSU is co-investment. If you don’t have private investors lined up alongside your EI application, it will almost certainly be declined or deferred.
A generic business plan: Submitting a standard business plan template that doesn’t address HPSU-specific requirements particularly around international market analysis, IP strategy, and the employment and revenue milestones EI expects.
HPSU designation is the most valuable early-stage funding relationship available to an Irish startup. The equity, the advisor, the international network, and the institutional signal to the private investor market it’s a genuinely transformative programme for companies that are ready for it.
At Grand Business Plan, we prepare HPSU-ready business plans and Financial Data Sheets that meet Enterprise Ireland’s standards plans that founders can walk into their Development Advisor meetings with confidence, and that withstand the Investment Committee review process.
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