Angels Way Confirms Investment in Portugal's Coalex AI Startup

June 23, 2026 — Alex Turner 4 min read

A Portugal-based artificial intelligence startup called Coalex has secured capital investment from Angels Way to develop what the company describes as a "trust layer" for AI systems. The funding will support the creation of verification and validation tools designed to help businesses assess the reliability and safety of AI models before deploying them in commercial applications. The announcement marks a notable development in the European AI infrastructure sector, where concerns about model opacity and accountability have been growing among enterprise customers.

The Trust Gap in Enterprise AI

Businesses across Europe have been struggling to verify whether the AI systems they purchase actually perform as vendors claim. A 2023 survey of enterprise technology buyers across the continent found that more than 60 percent expressed concerns about deploying AI in high-stakes decisions without independent verification. Coalex aims to fill this gap by offering standardised testing protocols that evaluate model behaviour across different scenarios and edge cases. The startup operates from Coimbra, a university city in central Portugal with a growing technology sector anchored by its proximity to the University of Coimbra.

Angels Way Investment Strategy

Angels Way, the investment vehicle backing the deal, focuses on early-stage technology companies operating in sectors where trust and verification are becoming commercial necessities. The firm has previously invested in supply chain transparency platforms and digital identity solutions. Industry observers note that the firm appears to be positioning itself in what it calls the "trust infrastructure" category, companies that do not build AI themselves but provide the scaffolding that makes AI adoption safer for enterprises. Representatives of Angels Way confirmed the investment in a statement but declined to disclose the specific amount of capital committed.

European Regulatory Pressure Driving Demand

The timing of the investment coincides with the implementation of the EU AI Act, which came into force in stages beginning this year. Under the new regulatory framework, certain high-risk AI applications must meet strict transparency and documentation requirements before they can be sold within the bloc. Companies that cannot demonstrate compliance face potential market exclusion. This regulatory environment has created urgent demand for tools that can assess whether AI systems meet the required standards, a market opportunity that Coalex is specifically targeting.

Coalex Technical Approach

The startup plans to use the capital to expand its testing infrastructure and hire additional engineers specialising in machine learning evaluation. The company has developed proprietary methodologies for stress-testing AI models against adversarial inputs and measuring consistency of outputs across repeated runs. These capabilities address what the company identifies as two of the most common failure modes in production AI systems: unexpected behaviour under novel conditions and unstable results from nominally identical inputs. Early customers have been concentrated in financial services and healthcare, sectors where AI errors carry significant financial or legal consequences.

Market Opportunity in AI Verification

The AI verification market remains relatively fragmented, with large technology consultancies offering bespoke assessment services alongside a growing number of specialised startups. Analysts tracking the space say the segment could reach several hundred million euros in annual spending by 2027 as regulatory deadlines approach. Coalex faces competition from established players in the testing and quality assurance space, some of which have begun adapting their existing methodologies for AI-specific applications. The startup's bet is that purpose-built tools designed specifically for AI evaluation will outperform general-purpose testing frameworks in speed and accuracy.

Coimbra's Emerging Technology Cluster

The investment adds to a small but growing portfolio of technology deals centred on Portugal's second-tier cities. Coimbra has been working to establish itself as a credible alternative to Lisbon for technology startups, leveraging lower operating costs and access to engineering graduates from its university. Local business development officials have been actively promoting the city as a location for companies building compliance and infrastructure tools for regulated industries. The Coalex deal provides a concrete example of that strategy in action, though the city still lacks the density of investor networks and supporting services found in larger European technology hubs.

What Happens Next

Coalex is expected to release its first commercial product before the end of the year, initially targeting companies that need to demonstrate AI Act compliance ahead of upcoming regulatory deadlines. The startup is also exploring partnerships with enterprise software vendors who want to offer built-in AI verification as part of their platforms. Angels Way has indicated it plans to support additional funding rounds for Coalex if the initial product launch meets its commercial targets. Investors and enterprise technology buyers should watch for customer announcements in the coming months, which will provide the first real-world evidence of whether the trust layer concept resonates beyond the startup's early adopter base.