About HashEx
Blockchain Audit and Consulting company, one of the most impactful tech advisory in EMEA region. More than 30 global projects are running on blockchain integrations designed by HashEx. 150+ smart contracts were audited in 2017-2018 including ICO projects that raised $200 mln.
Services
HashEx Reviews
Write a ReviewVisual identity and UX that our NPS scores immediately reflected
Brandon Hayes / VP of Engineering - Apex Digital PartnersMay 07, 2025
Project summary: Our hospital network required a unified patient data platform that could integrate with existing EMR systems while meeting all relevant data protection obligations.
Twelve weeks from kickoff to live production deployment for a project of this complexity. I would not have believed that was achievable if I had not watched them do it. The velocity came from genuine engineering discipline — clear requirements, short feedback loops, automated testing, and a team that communicated internally without the overhead that slows most agencies down. The product has been live for four months with no critical bugs and one minor patch. We are already in scoping conversations for phase two.
Domain knowledge that went beyond generic expertise into our specific industry, willingness to push back constructively, automated test coverage that gave us deployment confidence
Honestly nothing worth documenting — we went in with high expectations and they were met on every measure
Questions & Answers
ETL pipeline that processes a days worth of data in under ten minutes
Akiko Fujimoto / Head of Product Development - Sunrise Commerce KKOct 21, 2022
Project summary: Production downtime was costing us significantly each quarter and our existing monitoring infrastructure had no predictive capability whatsoever.
The technical quality of the work is the easiest thing to praise, but what I want to highlight is the communication culture on this team. Every question got a same-day response. Every risk got flagged before it became an issue. When we needed to change direction mid-project — a business decision on our side — they absorbed the change professionally, requoted fairly, and kept momentum going. That flexibility is something you cannot assess in a proposal and it turned out to be one of the most valuable things about working with them.
Collaborative working style that made them feel like an extension of our team, excellent written communication for our async timezone relationship, clean and readable codebase
Their calendar books up quickly which made scheduling the initial kickoff slightly challenging — a good problem for them to have and not one that affected our delivery