Standing at the helm of blockchain technology, top smart contract development companies specialize in building secure, efficient, and highly accurate smart contracts - digital contracts stored on a blockchain that outline the terms and conditions of an agreement between two parties. They employ teams of blockchain developers, engineers, and cybersecurity experts who can design and deploy smart contracts on various blockchain platforms, like Ethereum, IBM, Hyperledger, and more. Businesses can leverage their cutting-edge solutions to bolster the security and transparency of transactions, and streamline and automate complex business processes, from supply chain management to finance, healthcare, or retail. Compare prospective partners by client reviews, pricing, size, and more to find the most suitable one for your project.

Best Smart Contract Companies

3 Companies - Rankings updated: September 04, 2026

We evaluate every agency on DesignRush for technical expertise, delivery quality, and verified feedback to help businesses find reliable software development services. Some listings may be paid.

Smart Contracts
Smart Contract Development × Higher Education × $50,000 & Up × Clear Filters
  • Dont settle for off-the-shelf. Expertly crafted & custom-tailored software from the USA.

    K-Optional Software: where your success is our success. From secure solutions that scale to an uncompromising focus on return on investment, we're the company that delivers. Dont settle for off-the-shelf. Expertly crafted & custom-tailored software from the USA...

    Top Services:

    • Mobile App Development
    • Software Development
    • AI Development
    Location
    New York City, New York
    Number of Employees
    Under 49
    Average Hourly Rate
    $200/hr
    Minimal Budget
    $50,000 & Up

    K-Optional Software, LLC Services

    • Mobile App Development
    • Software Development
    • AI Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Viapath Technologies
    • AllModular Systems
    • Assemplify
    • University of Arkansas
    • University of Texas Austin
    • Flowty
    • RepairDispatch
    Data sourced from the agency's DesignRush profile

    K-Optional Software, LLC Reviews & Testimonials

    • Michael Levy
      Michael Levy President at Flowty
      5.0

      Software Development Review from Michael Levy

      Flowty is a blockchain-based platform providing various transaction services around NFTs. K-Optional wears many hats in support of Flowty including Front End, Back End, business strategy, SEO and more. The K-Optional team has been incredible to work with. They are proactive, supportive, smart, thoughtful and, most importantly, fit seamlessly into our team and company culture. To put it succinctly, we tried to hire them full-time...and then tried to buy their company to acqui-hire them. Some of their strengths include: reliability, responsiveness and creativity. There are many groups out there that can perform some version of the work we are looking for. There are not many groups that are responsive at all hours of the day, deliver consistently and able to present data-backed business strategies.

    • Jane Smarovozova
      Jane Smarovozova Creative Director at McSwain
      5.0

      Software Development Review from Jane Smarovozova

      We collaborated with K-Optional to develop a custom inventory management dashboard tailored for real estate clients. We provided the creative vision and detailed designs, while their team focused on the software development, ensuring that every element was implemented perfectly. We worked hand-in-hand flawlessly, resulting in a sleek, user-friendly interface that not only looks great but functions seamlessly. The synergy between design and development allowed us to deliver a product that exceeded client expectations, combining aesthetics with powerful functionality.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • EMERGE

    Award Winner Recipient of a Best Design Award for outstanding work.

    Digital Product Agency delivering Consumer-grade UX Design for B2B & Enterprise.

    EMERGE is a top-rated UX Design Agency and Digital Product Consultancy and a trusted partner for B2B leaders across technology, healthcare, and manufacturing sectors. We specialize in driving business growth by crafting elevated, engaging digital products and services...

    Top Services:

    • UI/UX Design
    • Product Design
    • Design Services
    • Software Development
    • Mobile App Development
    • Show more
    Location
    Portland, Oregon
    Number of Employees
    Under 49
    Average Hourly Rate
    $150/hr
    Minimal Budget
    $50,000 & Up
    Portfolios Count
    5 Projects Listed

    EMERGE Services

    • UI/UX Design
    • Product Design
    • Design Services
    • Software Development
    • Mobile App Development
    • Web Development
    • eCommerce Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Mercedes Benz
    • Intel
    • McAfee
    • AT&T
    • Home Depot
    • Nike
    • Splunk
    • HPE
    • Stanford University
    • UCSF
    Data sourced from the agency's DesignRush profile
  • Your Tech Partner for EdTech Innovation

    We build and scale EdTech platforms ready for real-world complexity, district integrations, and compliance...

    Top Services:

    • Mobile App Development
    • Web Development
    • Staff Augmentation
    • AI Development
    • Software Development
    • Show more
    Location
    Montevideo, Uruguay
    Number of Employees
    50 - 99
    Average Hourly Rate
    $60/hr
    Minimal Budget
    $50,000 & Up

    NeoCoast Services

    • Mobile App Development
    • Web Development
    • Staff Augmentation
    • AI Development
    • Software Development
    • IT Services
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • ThinkCERCA
    • Nuro Retention
    • FoodConnect
    Data sourced from the agency's DesignRush profile

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