Best Stamford Ethereum Blockchain Development Companies

3 Companies - Rankings updated: April 01, 2026

Each agency undergoes DesignRush evaluation for professional expertise and genuine client satisfaction to assist your search. Some featured placements are paid.

United States × Connecticut × Stamford ×
  • Top US Mobile & Web App Development Agency

    AppMakersUSA is a US-based full-service mobile application development company. We specialize in building cross-platform websites and apps (meaning iOS & Android for the price of one), informing your business decisions from a technical perspective, and being transparent in our process & thinking.  [... see all AppMakers USA reviews ]
    Location
    Stamford, Connecticut
    Number of Employees
    Under 49
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    83 Projects Listed

    AppMakers USA Services

    • Mobile App Development
    • UI/UX Design
    • AI Development
    • Software Development
    • Web Design
    • Staff Augmentation
    • Web Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts

    Clients and Projects

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    • Walmart
      App Development Project for Food and Beverage Company Walmart
    • Eksperience (NFL)
      App Development Project for Entertainment Company Eksperience (NFL)
    • CVS Pharmacy
      App Development Project for Health Care Company CVS Pharmacy
    • Number Hive
      App Development Project for Education Company Number Hive
    • ClassCalc
      App Development Project for Education Company ClassCalc
    • Echo Journal
      Artificial Intelligence Project for Hobbies & Gifts Company Echo Journal
    Comprehensive analysis done by DesignRush Agency Experts.

    AppMakers USA Reviews & Testimonials

    • Awital Ifrah
      Awital Ifrah Program manager at Masa Israel journey
      5.0
      Cross-Platform Review from Awital Ifrah

      Masa came in with a pretty loose idea and AppMakers helped turn it into something solid. What I appreciated most is they didn't overcomplicate it or try to make it into some giant monster platform. They listened, asked smart questions, and helped us focus on what would actually matter for alumni and current participants. The end result felt thoughtful and realistic. I'd definitely work with them again.

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    • Moishi Stern
      Moishi Stern Customer support at Madlan
      5.0
      Startup Review from Moishi Stern

      We create live events. We wanted a site that shows what we do without making people dig. AppMakers listened, trimmed the fluff, and gave us pages that read fast and look good on a phone. The quote form asks the right things and our team can update galleries without calling a developer. They stayed on schedule and answered messages the same day. The whole process was calm and clear. We already see better inquiries. It feels like a real upgrade, even before the full rebuild.

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    • Jubilee Haddasah Munozvilla
      Jubilee Haddasah Munozvilla CEO at Its Kinda Catchy
      5.0
      Small Business Review from Jubilee Haddasah Munozvilla

      We loved working with AppMakers. They built us a procurement system to help quickly and easily secure materials for our labs. The process was smooth and the outcome was stellar.

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    Reviews verified by DesignRush and sourced from the agency's profile
    • CVS Pharmacy
    • Austin Ekeler (NFL Player)
    • ClassCalc
    • Number Hive
    • BookClub
    • Arcxis
    • Debate club
    • Bayut
    • Los Angeles Apparel
    • Sun Scooter
    Data sourced from the agency's DesignRush profile
  • FUELING DISRUPTION

    We're EffectiveSofta custom software development company delivering effective digital solutions. Whether it's new product creation or scaling and maintaining complex systems, we empower businesses to grow and disrupt their industries.  [... see all EffectiveSoft reviews ]
    Location
    Stamford, Connecticut
    Number of Employees
    250 - 499
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    29 Projects Listed

    EffectiveSoft Services

    • Software Development
    • Mobile App Development
    • Big Data Analytics
    • AI Development
    • ERP Consulting
    • IoT
    • Cloud Consulting
    • DevOps Consulting
    • UI/UX Design
    • Staff Augmentation
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts

    Clients and Projects

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    • GenAI-agent powered voice assistant for Tesla
      Artificial Intelligence Project for AI Company GenAI-agent powered voice assistant for Tesla
    • A cloud-based solution for creating interactive videos
      Cloud Application Development Project for Entertainment Company A cloud-based solution for creating interactive videos
    • AI opportunity mapping for a credit management company
      AI Consulting Project for Fintech Company AI opportunity mapping for a credit management company
    • AI-driven ETL modernization for Authenticom
      AI Automation Project for Automotive Company AI-driven ETL modernization for Authenticom
    • An AI assistant that turns natural-language requests into decision-ready dashboards
      Agentic AI Project for Fintech Company An AI assistant that turns natural-language requests into decision-ready dashboards
    • Architecture readiness review for regulated market expansion
      Software Consulting Project for Fintech Company Architecture readiness review for regulated market expansion
    Comprehensive analysis done by DesignRush Agency Experts.

    EffectiveSoft Reviews & Testimonials

    • Philipe Araujo
      Philipe Araujo Business Analyst and Quality Engineer at Motive Retail
      4.8
      Software Development Review from Philipe Araujo

      We have had a highly positive experience utilizing EffectiveSoft's staff augmentation services for our Business Analyst and Quality Engineer needs. The professionals provided were not only highly skilled and knowledgeable but also integrated seamlessly with our existing team, requiring minimal ramp-up time. Their expertise in their respective fields significantly enhanced our project's efficiency and overall quality. We confidently recommend EffectiveSoft for any organization seeking top-tier talent to augment their teams and drive successful project outcomes.

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    • Sasja Ihn Christensen
      Sasja Ihn Christensen Senior Director, Head of Digital Business Development at MAERSK BROKER
      5.0
      Software Development Review from Sasja Ihn Christensen

      Maersk Broker is pleased to provide this reference letter for EffectiveSoft, our trusted collaborator for complex web projects. From the initial stages of our projects, the team at EffectiveSoft demonstrated a deep understanding of our requirements and have been apro-active part of any problem-solving process. The team of offshore developers has been well-run through their lead developer, and we have only experienced a professional approach to our projects, as well as a pleasant and trust-based collaboration = between all members in the EffectiveSoft team and our own team. EffectiveSoft has furthermore proved to be highly flexible, adapting to our evolving needs and delivering reliable results under shifting circumstances and shifting priorities. They have furthermore been very quick to find and add the necessary resources to the team when needed, and we have only experienced professional and highly skilled consultants. This has also made on-boarding into projects faster and more efficient.In conclusion, it has been a pleasure working with EffectiveSoft, and I have no doubt that they will continue to be an asset to any collaborators in the future, adding value through their professionalism, dedication and understanding of business needs.

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    • Matt Hobbs
      Matt Hobbs Chief Product Officer at Canopy
      5.0
      Software Development Review from Matt Hobbs

      I am writing to recommend EffectiveSoft, a technology consulting company that has been providing services to Canopy for the last four years. During this time they have consistently demonstrated professionalism, expertise, and a strong commitment to meeting deadlines for our business outcomes.. Canopy’s mission is to improve the financial resilience of UK renters, and support the Agents and Landlords they rent from with our powerful referencing platform. EffectiveSoft has been a key partner, working with us to deliver our product and engineering roadmaps as we continue to grow and scale. Their skilled team of engineers has worked to understand our unique product needs and deliver quality platform increments following agile principles.One of the most impressive qualities of EffectiveSoft is their ability to respond flexibly to our changes in direction, and meet evolving delivery deadlines, overseen by Kirill Makarenko, our technical project manager. Kirill and the team’s strong work ethic, capability and diligence has been crucial in the successful execution of our projects. It is rare to come across an external development team that remains steadfast in its commitment to service standards and business continuity, and here EffectiveSoft have excelled. Based on our experience, I would highly recommend EffectiveSoft for any organisation seeking technology delivery services. Their dedication, responsiveness, and commitment to delivering results make them an invaluable partner.

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    Reviews verified by DesignRush and sourced from the agency's profile
    • CITY INDEX
    • TruBridge
    • CNote
    • Plato
    • Intelon Optics
    • InCheq
    • Nissin Foods
    • Soutron Ltd.
    • BullionRock
    • InContinuum
    Data sourced from the agency's DesignRush profile
  • Building Products AI-Native Way

    Talentica Software is a leading product engineering company that helps startups, growth-stage, and technology companies build end-to-end products and achieve business outcomes. The company has specialized in AI & Machine Learning, Generative AI, Data Engineering, Blockchain, and Big Data  [... see all Talentica Software reviews ]
    Location
    Stamford, Connecticut
    Number of Employees
    500 - 999
    Average Hourly Rate
    $30/hr
    Minimal Budget
    $50,000 & Up
    Portfolios Count
    7 Projects Listed

    Talentica Software Services

    • Software Development
    • AI Development
    • IT Services
    • Big Data Analytics
    • Cybersecurity
    • Blockchain
    • Mobile App Development
    • Staff Augmentation
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts

    Clients and Projects

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    • Increasing Revenue Realization Using Data Science
      Software Development Project for Media & Communications Company Increasing Revenue Realization Using Data Science
    • Rationalizing Investment Decisions Using Data Science
      Software Development Project for Finance Company Rationalizing Investment Decisions Using Data Science
    • Idea to MVP in 120 days
      Software Development Project for Software & IT Services Company Idea to MVP in 120 days
    • MVP to Enterprise-Ready
      Software Development Project for Fintech Company MVP to Enterprise-Ready
    • Idea to $130 Mn Acquisition
      Software Development Project for Fintech Company Idea to $130 Mn Acquisition
    • Blockchain-Powered Product Development
      Software Development Project for Crypto Company Blockchain-Powered Product Development
    Comprehensive analysis done by DesignRush Agency Experts.

    Talentica Software Reviews & Testimonials

    • Ashish Sharma
      Ashish Sharma Sr Engineering Manager at OpenGov India Pvt Ltd
      4.7
      Software Development Review from Ashish Sharma

      Talentica has proven to be an exceptional software outsourcing partner, consistently exceeding expectations in both the quality of their resources, deliverables and their commitment to our success. They function not merely as a vendor, but as an extension of our core engineering team.Key Highlights of our Partnership:High Resource Quality: The engineers provided by Talentica are technically strong and highly competent. They integrate seamlessly with our internal teams and quickly take ownership of complex projects.Commitment and Reliability: Talentica is a truly reliable partner that consistently demonstrates a strong willingness to go beyond the standard scope of work. They proactively identify risks and contribute innovative solutions.Critical Project Support: Their expertise was pivotal in two critical areas:Data Pipeline & Reporting: They were instrumental in both enhancing and maintaining a reliable data pipeline & reporting infrastructure. Software Upgrades: They managed challenging, large-scale software upgrades, ensuring we successfully transitioned to modern technology stacks with minimal disruption.Overall, Talentica is a dependable and high-value partner assisting our mission-critical projects.

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    • Anonymous
      Anonymous Advisor at IT Company
      5.0
      Software Development Review from Anonymous

      We had created a conceptual framework to authenticate and verify the provenance, transaction history, and authorship of blockchain-based NFTs. Talentica was brought on board to test and refine the concept from both functional and engineering perspectives, and later to build a Minimum Viable Product (MVP) aligned with the agreed specifications and constraints.

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    • Anonymous
      Anonymous Engineering Manager at SaaS Company
      5.0
      Software Development Review from Anonymous

      For several years, the team was composed entirely of Talentica contractors. Since January 2022, I have been directly managing them. The Talentica team handled the admin tooling backend, which included multiple Python Flask services with Postgres and Elasticsearch. These services operated in a service-oriented architecture deployed on Kubernetes, using Istio for service mesh and Spinnaker for deployments.

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    Reviews verified by DesignRush and sourced from the agency's profile
    • Wideorbit
    • Sema4.AI
    • Realization Technologies Inc.
    • TailoredMail
    • StructuredWeb Inc
    • Amplify
    • Mist Systems (Juniper Company)
    Data sourced from the agency's DesignRush profile