# Top Blockchain Companies & Developers in Helsinki Recommended Blockchain companies in Helsinki include Altoros, TX Tomorrow Explored Oy, Keytech OY, Oivan, Blockchain Business Security Solutions Finland, Nordivo, Seita Technologies Oy, HeyDay Pro. We verify reviews and evaluate companies so you can choose with confidence. We may earn a fee for some placements. [Learn how Clutch ensures trust](#why-trust-clutch) ## List of the Best Top Blockchain Companies in Helsinki Ratings Updated: Jul 31, 2026 ### [Altoros](https://clutch.co/profile/altoros) #### 4.8 out of 5 star rating (34 reviews) - $25,000+ minimum project size - $50 - $99 average hourly rate - 250 - 999 employees - Helsinki, Finland #### Services Provided - Allocation of Expertise by Percentage - 25% Custom Software Development - 10% Enterprise App Modernization - 40% Blockchain - 5% Microservices Architecture Services - 5% Mobile App Development - 5% IT Staff Augmentation - 10% Web Development #### Company description Altoros is a software development company specializing in custom software solutions, including web and mobile development, UX design, and staff augmentation. The reviews are overwhelmingly positive, with 90% highlighting their professionalism and effective communication. Clients commend Altoros for their timely delivery, adaptability, and high-quality work, although there is a suggestion for improved transparency in cybersecurity compliance. [Visit Website](https://www.altoroslabs.com/?utm_medium=referral&utm_source=clutch&utm_campaign=profile) --- ### [TX Tomorrow Explored Oy](https://clutch.co/profile/tx-tomorrow-explored-oy) #### 5 out of 5 star rating (3 reviews) - $100 - $149 average hourly rate - 10 - 49 employees - Helsinki, Finland #### Services Provided - Allocation of Expertise by Percentage - 25% UX/UI Design - 50% Blockchain - 25% Blockchain Marketing #### Company description TX Tomorrow Explored Oy is a Blockchain Development company specializing in blockchain solutions, tokenomics, and smart contract development. Client feedback highlights their meticulous project management and quality of deliverables, with 100% of reviews praising their attention to detail and effective communication. Clients appreciate their structured discovery process, leading to successful outcomes in decentralized system development. [Visit Website](https://tx.company) --- ### [Keytech OY](https://clutch.co/profile/keytech-oy) #### 5 out of 5 star rating (1 reviews) - $10,000+ minimum project size - $50 - $99 average hourly rate - 10 - 49 employees - Helsinki, Finland #### Services Provided - Allocation of Expertise by Percentage - 10% Blockchain - 10% E-Commerce Development - 20% IoT Development - 50% Mobile App Development - 10% Web Development #### Company description Keytech OY is a web and mobile app development company known for its effective project management and cost-efficient services. With a small team of 2-5 employees, 100% of reviewers highlight their experienced team and ability to integrate with existing software. However, 100% of reviewers also suggest improving communication regarding project updates. [Visit Website](https://keytech.fi/) --- ### [Oivan](https://clutch.co/profile/oivan) #### 4.5 out of 5 star rating (13 reviews) - $10,000+ minimum project size - $50 - $99 average hourly rate - 50 - 249 employees - Helsingfors, Finland #### Services Provided - Allocation of Expertise by Percentage - 5% UX/UI Design - 15% Custom Software Development - 10% Blockchain - 5% Cloud Consulting & SI - 10% Application Management & Support - 15% Cybersecurity - 15% Mobile App Development - 25% Web Development #### Company description Oivan, a versatile IT services company, specializes in IT infrastructure, operations, and software development. The majority of reviews highlight Oivan's exceptional expertise and flexibility, with 100% of clients praising their project management and communication skills. Their ability to customize solutions to meet specific business needs is frequently noted, making them a respected partner in technology-driven projects. [Visit Website](http://www.oivan.com) --- ### [Blockchain Business Security Solutions Finland](https://clutch.co/profile/blockchain-business-security-solutions-finland) - $100,000+ minimum project size - $300+ average hourly rate - 2 - 9 employees - Helsinki, Finland #### Services Provided - Allocation of Expertise by Percentage - 100% Blockchain #### Company description Blockchain company Blockchain Business Security Solutions Finland was founded in 2022. The team focuses on Blockchain and is based in Helsinki, Finland. [Visit Website](https://bcbsec.com/) --- ### [Nordivo](https://clutch.co/profile/nordivo) - $10,000+ minimum project size - $50 - $99 average hourly rate - 10 - 49 employees - Helsinki, Finland #### Services Provided - Allocation of Expertise by Percentage - 100% Blockchain #### Company description Nordivo is a small Helsinki, Finland-based Blockchain company. Their services include Blockchain. [Visit Website](https://nordivo.com) --- ### [Seita Technologies Oy](https://clutch.co/profile/seita-technologies-oy) - 10 - 49 employees - Helsinki, Finland #### Services Provided - Allocation of Expertise by Percentage - 20% Custom Software Development - 40% Blockchain - 10% E-Commerce Development - 10% IT Managed Services - 10% IT Strategy Consulting - 10% Mobile App Development #### Company description Seita Technologies Oy is a Helsinki, Finland-based Blockchain company. Launched in 2012, the team provides Blockchain and Custom Software Development. [Visit Website](https://www.seitatech.fi) --- ### [HeyDay Pro](https://clutch.co/profile/heyday-pro) - $5,000+ minimum project size - $100 - $149 average hourly rate - 10 - 49 employees - Helsinki, Finland #### Services Provided - Allocation of Expertise by Percentage - 25% AR/VR Development - 15% AI Development - 20% BI & Big Data Consulting & SI - 25% Blockchain - 15% IoT Development #### Company description Established in 2000, HeyDay Pro is a small Helsinki, Finland-based AR/VR development company. Their team provides AR/VR development and Blockchain. [Visit Website](https://heydaypro.com/) --- #### Get personalized agency matches based on your project goals. [Find the right fit](https://project.clutch.co/project-brief?source=directory_slide_in_CTA&BPB_adoption_source=directory) ## Why Trust Clutch At Clutch, we believe trust is the foundation of every business relationship. Our mission is to help buyers make confident, data-backed decisions informed by real client experiences. Every review on Clutch undergoes a rigorous, human-led verification process to make sure it’s valid. Our team of specialists confirms the identity of each reviewer, ensures the project is legitimate, and only publishes reviews that meet our strict criteria. Verification doesn’t stop at the point of publication. Our Trust & Safety team routinely audits older reviews against our guidelines. When reviews fall short of our standards, we remove them. We evaluate service providers using a [structured methodology](https://clutch.co/methodology) that combines: - In-depth client interviews and ratings - Comprehensive project details - Market presence - Portfolio examples and industry recognition This data powers tools like the Leaders Matrix, which helps you compare agencies directly. Our research team curates rankings by weighing verified reviews most heavily, so the most trusted and experienced providers rise to the top. 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