# Top Web3 Developers in Bulgaria Recommended web3 companies in Bulgaria include Quanterall, WeiChain Tech, goodmorning, Devrefine, WispSoft, Omicron Blockchain Solutions. 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 Web3 Developers in Bulgaria Ratings Updated: Aug 1, 2026 ### [Quanterall](https://clutch.co/profile/quanterall) #### 5 out of 5 star rating (3 reviews) - $50,000+ minimum project size - $50 - $99 average hourly rate - 50 - 249 employees - Varna, Bulgaria #### Services Provided - Allocation of Expertise by Percentage - 30% Custom Software Development - 30% Blockchain - 15% IoT Development - 10% Mobile App Development - 15% Web Development #### Company description Quanterall is a software development company specializing in blockchain, smart contracts, and financial transaction systems. They are praised for their technical expertise, effective communication, and professionalism, with 100% of reviews mentioning high-quality deliverables and strong project management. Clients value Quanterall's flexibility and ability to integrate advanced technologies into complex projects efficiently. [Visit Website](https://quanterall.com/) #### Autonomous The sentiment regarding Quanterall's autonomy is positive, with clients noting their ability to work independently while effectively integrating into larger teams. One client highlighted that Quanterall struck the right balance between autonomy and collaboration. Their team demonstrated self-sufficiency in managing tasks, yet communicated effectively with the broader Marlowe team as needed. Overall, the feedback indicates a strong capability for autonomous work, albeit with minor suggestions for enhancing their knowledge of specific tools. - Blockchain Development for IT Services Company (5.0/5, Jan 31, 2023): The team were able to work independently, communicating with the wider Marlowe team as and when needed, striking exactly the right balance between autonomy and integration. [Read Full Review](https://clutch.co/go-to-review/quanterall/178633) #### Experience in 3 industries Quanterall has demonstrated expertise across multiple industries, notably IT Services, Financial Services, and Logistics & Supply Chain. Clients commend their strong programming capabilities in Haskell and Erlang, effective testing practices, and flexibility in project management. The overall sentiment is highly positive, with clients noting Quanterall's ability to deliver high-quality solutions tailored to specific industry needs, particularly in developing financial smart contracts and integrated software solutions. [Read All Reviews](https://clutch.co/profile/quanterall?verified=true#reviews) ##### IT Services Experience Quanterall demonstrates strong expertise in functional programming and blockchain technologies, particularly through their successful collaboration on the Cardano blockchain. Clients commend their high-quality implementations and systematic testing practices, which significantly contributed to developing financial smart contracts. Their ability to balance autonomy and integration within project teams is praised. However, there is potential for improvement in their knowledge of Cardano tools and Haskell. Overall, Quanterall is well-suited for projects requiring specialized blockchain development. - 1 review for it services industry - 1 review is 5 stars - Unknown avg. project cost - Blockchain Development for IT Services Company (5.0/5, Jan 31, 2023): Quanterall helped an IT services company develop a blockchain using Haskell, Marlowe, and Plutus technologies. The team helped validate, correct, and enhance the company's existing implementation process. [Read Full Review](https://clutch.co/go-to-review/quanterall/178633) ##### Financial services Experience Quanterall has demonstrated significant expertise in the Financial services industry, particularly in payment processing solutions. A client from Sumup praised their ability to develop a reliable testing system for card acceptance, showcasing their technical proficiency in financial transaction protocols. The partnership emphasized Quanterall's strength in talent development and professionalism. Overall, clients have expressed high satisfaction with Quanterall's impact on enhancing infrastructure and reducing error detection times, indicating a strong fit for businesses seeking robust financial technology solutions. - 1 review for financial services industry - 1 review is 5 stars - $10,000 – $49,000 avg. project cost - EMV Simulator for Financial Technology Company (5.0/5, Nov 29, 2021): Quanterall developed an EMV simulating system for a financial technology company. They're tasked with automating the client's EMV transactions testing by developing a testing backend system using Erlang. [Read Full Review](https://clutch.co/go-to-review/quanterall/5634) ##### Logistics & Supply Chain Experience Quanterall demonstrates notable expertise in the Logistics & Supply Chain sector, delivering integrated software solutions for fleet management and invoicing. Clients commend their flexible project management and effective communication, which fosters consistent collaboration. Feedback highlights Quanterall's ability to adapt to changes in business strategy, ensuring relevant software functionality. Overall sentiment is positive, suggesting Quanterall is a suitable partner for companies seeking innovative solutions in the Logistics & Supply Chain industry. - 1 review for logistics & supply chain industry - 1 review is 5 stars - $50,000 – $199,999 avg. project cost - Software Integration for Logistics Company (5.0/5, Nov 12, 2021): Quanterall is developing integrated software for a logistics company. The client wants the platform to include invoicing fleets and equipment management. [Read Full Review](https://clutch.co/go-to-review/quanterall/4581) #### 5.0 out of 5.0 rating for cost What Clients Have Said Quanterall is noted for delivering high-quality solutions that provide good value for money. Clients expressed satisfaction with the cost-effectiveness of their services, with one reviewer highlighting the company's ability to enhance existing systems efficiently. Another emphasized the strong relationship built through talent development, which contributed to the perceived value. Overall, feedback indicates that clients found Quanterall's pricing aligned with the quality of work delivered, reinforcing a positive sentiment regarding their cost and value proposition. [Read All Reviews](https://clutch.co/profile/quanterall?verified=true#reviews) - $10,000 to $49,000 (1 reviews) - $50,000 to $199,999 (1 reviews) #### Completed projects in 3 countries - Bulgaria (1 projects) - Singapore (1 projects) - England (1 projects) [View Reviews](https://clutch.co/profile/quanterall?verified=true#reviews) --- ### [WeiChain Tech](https://clutch.co/profile/weichain-tech) - $5,000+ minimum project size - $25 - $49 average hourly rate - 10 - 49 employees - Sofia, Bulgaria #### Services Provided - Allocation of Expertise by Percentage - 50% Blockchain - 25% Mobile App Development - 25% Web Development #### Company description WeiChain Tech is a Blockchain company. The agency is based in Singapore, Singapore and Sofia, Bulgaria. Their services include Blockchain and Web Development. [Visit Website](https://www.weichain.tech/) #### 93% of employees work in Sofia office Sofia, Bulgaria ulitsa "Oborishte" 5b 10 - 15 employees [See All Locations (2)](https://clutch.co/profile/weichain-tech#location) --- ### [goodmorning](https://clutch.co/profile/goodmorning) - $50 - $99 average hourly rate - 10 - 49 employees - Varna, Bulgaria #### Services Provided - Allocation of Expertise by Percentage - 50% Blockchain - 50% Blockchain Marketing #### Company description Goodmorning is a Blockchain and Blockchain Marketing company. They are headquartered in Varna, Bulgaria and have small team. They provide Blockchain and Blockchain Marketing. [Visit Website](https://goodmorning.dev) --- ### [Devrefine](https://clutch.co/profile/devrefine) - $25 - $49 average hourly rate - 10 - 49 employees - Sofia, Bulgaria #### Services Provided - Allocation of Expertise by Percentage - 10% AI Consulting - 10% BI & Big Data Consulting & SI - 10% Blockchain - 10% Application Management & Support - 10% IT Managed Services - 10% Low/No Code Development - 10% IT Staff Augmentation - 30% Web Development #### Company description Devrefine is a web development company launched in 2020. The company focuses on Web Development and BI & big data consulting & SI. [Visit Website](https://devrefine.com) --- ### [WispSoft](https://clutch.co/profile/wispsoft) - $50,000+ minimum project size - $50 - $99 average hourly rate - 2 - 9 employees - Sofia, Bulgaria #### Services Provided - Allocation of Expertise by Percentage - 30% Custom Software Development - 30% Blockchain - 20% CRM Consulting and SI - 20% ERP Consulting and SI #### Company description Launched in 2021, WispSoft is a software development company. Based in Sofia, Bulgaria, the team focuses on Custom Software Development and Blockchain. [Visit Website](https://www.wispsoft.eu) --- ### [Omicron Blockchain Solutions](https://clutch.co/profile/omicron-blockchain-solutions-0) - 2 - 9 employees - Sofia, Bulgaria #### Services Provided - Allocation of Expertise by Percentage - 100% Blockchain #### Company description Small Blockchain company Omicron Blockchain Solutions, is based in Sofia, Bulgaria. Their services include Blockchain. [Visit Website](https://omicronblockchain.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. 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