Best San Jose Ethereum Blockchain Development Companies

7 Companies - Rankings updated: April 01, 2026

Each agency listed on DesignRush is assessed for industry expertise and customer testimonials are evaluated in order to provide you with a vetted selection. Certain listings represent paid partnerships.

United States × California × San Jose ×

AppMakers USA
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
San Jose, California
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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App Development Project for Food and Beverage Company Walmart
App Development Project for Entertainment Company Eksperience (NFL)
App Development Project for Health Care Company CVS Pharmacy
App Development Project for Education Company Number Hive
App Development Project for Education Company ClassCalc
Artificial Intelligence Project for Hobbies & Gifts Company Echo Journal
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Comprehensive analysis done by DesignRush Agency Experts.
AppMakers USA Reviews & Testimonials
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 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 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
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5.0 5.0 (63)
ThirdEye Data
Transforming Enterprises with AI Applications
ThirdEye Data Transforms Enterprises with Data & AI Solutions & Services. ThirdEye Data leverages Artificial Intelligence & Data technologies to build AI applications for enterprises worldwide. [... see all ThirdEye Data reviews ]
Location
San Jose, California
Number of Employees
50 - 99
Average Hourly Rate
$55/hr
Minimal Budget
$10,000 - $25,000
Portfolios Count
23 Projects Listed
ThirdEye Data Services
AI Development
Big Data Analytics
Software Development
Cybersecurity
IT Services
Staff Augmentation
DevOps Consulting
Cloud Consulting
Mobile App Development
IoT
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Clients and Projects
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Artificial Intelligence Project Image Quality Detection Platform
Software Development Project Object Detections & Tags Deciphering from Images
Machine Learning Project MLOps Engineering
Artificial Intelligence Project AIOps - Anomaly Detection Platform
Artificial Intelligence Project AI-based Semantic Search
Artificial Intelligence Project NLP based Search Engine
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Comprehensive analysis done by DesignRush Agency Experts.
ThirdEye Data Reviews & Testimonials
Matt Singer CEO at Ecotrak
5.0★
Big Data Analytics Review from Matt Singer
ThirdEye helped analyzing data and recommending architecture for enhanced analytics. They understood our business needs really well and went above and beyond to deliver what we were looking for.
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Kumar Mankala Former Advisor of the AI/ML Program and Products at SCE
5.0★
Software Development Review from Kumar Mankala
ThirdEye developed CV ML models to automate image quality assessment for Field Asset Inspection (part of Wildfire Mitigation Program). The team delivered the models in time, was able to adapt to changing requirements.
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Erhan Erdem Review from Google
1.0★
Erhan Erdem's Review Sourced from Google
I did a voice study for them almost two months ago, still waiting for my payment. I contacted them multiple times and they don't even respond. What a joke.
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Reviews verified by DesignRush and sourced from the agency's profile
Microsoft Corp
Walmart
AWS
SCE
XPERI
Texisle
Glastrosch
British Petroleum
CRC
Google
Data sourced from the agency's DesignRush profile
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4.5 4.5 (2)
3.0 3.0 (2)
Trango Tech
Driving Change Through Technology - Apps, Ecommerce, Staff Aug, BPO, Next Gen Tech and more!
We are the nerds that every company wants in their tech division; experience, innovative and imaginative to the core!With more than 200 innovative software products and solution delivered, Trango Tech is the go-to digital powerhouse for businesses of all sizes looking to grow. We offer cutting edge [... see all Trango Tech reviews ]
Location
San Jose, California
Number of Employees
100 - 249
Portfolios Count
17 Projects Listed
Trango Tech Services
Software Development
Mobile App Development
eCommerce Development
AI Development
Web Design
CRM Consulting
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Clients and Projects
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App Development Project for Social Networks Company See My Clouds
Flutter Development Project for Transportation & Logistics Company Ahyon
React Native Project for Hospitality Company NightLife-E
DeFi Project for Crypto Company Kitty Token Exchange App
Software Development Project for Agriculture Company Khaity - AI based Software Development
App Development Project for Music Company The Bridge - A Music Platform | App & Web
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Comprehensive analysis done by DesignRush Agency Experts.
Trango Tech Reviews & Testimonials
Ashleigh J. Shim Founder at Barefoot Player
5.0★
Mobile App Development Review from Ashleigh J. Shim
Jane Miller and her team at Trango Tech have been phenomenal. They design a detailed and curated plan for your app design and development. I liked that Jane always made herself available to ensure the success of our company's app. Thank you Jane!
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Fren D. Garcia Procurement Manager at ClicknCollect
4.8★
Mobile App Development Review from Fren D. Garcia
Had a fantastic experience working with Trango Tech for our eCom & app development needs. Their expertise in creating scalable and customized online stores was evident from the beginning. They provided valuable insights and suggestions that significantly improved my website's functionality and user experience. The Trango Tech team was responsive, communicative, and dedicated to meeting our specific needs. I'm thrilled with the end result and would highly recommend Trango Tech to anyone.
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David V. Ringer Marketing Manager at Helpp
4.8★
Mobile App Development Review from David V. Ringer
The team at Trango Tech was very communicative and kept me informed throughout the entire development process. They provided regular updates on the progress of the project and were always available to answer any questions I had. They were very patient with my requests and made sure that my requirements were met to my satisfaction.
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Reviews verified by DesignRush and sourced from the agency's profile
Khaity
Shifaam
KIA
Click N Kollect
Helpp
Matchbox
OAKS
Data sourced from the agency's DesignRush profile
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4.6 4.6 (5)
4.5 4.5 (6)

Talentica Software
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
San Jose, California
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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Software Development Project for Media & Communications Company Increasing Revenue Realization Using Data Science
Software Development Project for Finance Company Rationalizing Investment Decisions Using Data Science
Software Development Project for Software & IT Services Company Idea to MVP in 120 days
Software Development Project for Fintech Company MVP to Enterprise-Ready
Software Development Project for Fintech Company Idea to $130 Mn Acquisition
Software Development Project for Crypto Company Blockchain-Powered Product Development
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Comprehensive analysis done by DesignRush Agency Experts.
Talentica Software Reviews & Testimonials
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 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 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
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4.9 4.9 (27)
4.4 4.4 (238)
RichestSoft
Enterprise Grade App & Web Development Services
At RichestSoft, we don't just build apps; we create seamless digital experiences that automate businesses. As a leading Mobile App and Web Development Company, we partner with visionary companies to bring their ideas to life, blending their vision with our cutting-edge technical expertise to spark future [... see all RichestSoft reviews ]
Location
San Jose, California
Number of Employees
250 - 499
Average Hourly Rate
$20/hr
Minimal Budget
$10,000 - $25,000
Portfolios Count
9 Projects Listed
RichestSoft Services
eCommerce Development
Web Development
Mobile App Development
Software Development
Blockchain
AI Development
VR/AR
Software Testing
Wearables
Cloud Consulting
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Clients and Projects
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App Development Project Germany Dating App
App Development Project Super App Development
AI Application Development Project for AI Company Undress AI
App Development Project for Wellness & Fitness Company Workout Planner App Development
App Development Project Bitpanda Crypto Trading Platform
App Development Project MeowChowNow
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Comprehensive analysis done by DesignRush Agency Experts.
RichestSoft Reviews & Testimonials
Lathan Ashton IT Systems Architect at Partners in Performance International
5.0★
Web Development Review from Lathan Ashton
RichestSoft was tasked with taking our existing templates, upgrading them to the latest version of our CMS, and deploying them to a staging environment. They also updated the designs for all subsections of the site. The site is fairly generic, consisting of static pages with links from the homepage to product descriptions, case studies, and more. Our team can easily log into the CMS and update case studies without needing a web developer, which has been a huge advantage. Our primary concern was the seamless conversion of our old templates, and RichestSoft handled this flawlessly. They even suggested ideas like making the site multilingual, though we only needed an English version, so it wasn’t necessary in our case.
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Robbie Hart Founder at C4 Belts
5.0★
Web Development Review from Robbie Hart
The website now has a more modern and appealing feel, and we've noticed an increase in the number of visitors since working with RichestSoft. They effectively leverage their technologies, and their communication and timeliness have been satisfactory throughout the project. Our business is centered around land development and industrial projects, supported by a team of IT professionals that manage the technology driving our operations. Our mission is to provide quality and satisfaction by utilizing our knowledge, experience, and ambition to meet and exceed our clients' expectations.
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James Shehan IT Director at InventRight
5.0★
Web Development Review from James Shehan
RichestSoft consistently delivered on a complex and demanding project, handling all tasks with efficiency. Whenever any bugs or issues surfaced on the site, they promptly resolved them. While there have been occasional communication challenges, none of these have affected the high-quality and cost-effective service they provide.
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Reviews verified by DesignRush and sourced from the agency's profile
JIB ROADSIDE ASSISTANCE
Rod Foster
Germany-Chat.com
Pools Magnic App
MeowChowNow
Silvia Berlain
Glitter Dating App
JCA Food App
Gift3R
Data sourced from the agency's DesignRush profile
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4.9 4.9 (18)
3.8 3.8 (148)
ScalaCode Global Pvt. Ltd.
Scalable Intelligence
ScalaCode helps ISVs and enterprises build AI-powered products with vetted remote developers from India. From LLM apps and MLOps to full-stack delivery, our PODs ship fast, securely, and cost-effectively for US/EU time zonesunder strict NDAs and SLA-driven execution. [... see all ScalaCode Global Pvt. Ltd. reviews ]
Location
San Jose, California
Number of Employees
100 - 249
Average Hourly Rate
$15/hr
Minimal Budget
$1,000 - $10,000
Portfolios Count
2 Projects Listed
ScalaCode Global Pvt. Ltd. Services
AI Development
Mobile App Development
Software Development
eCommerce Development
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Clients and Projects
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AI Application Development Project for Automotive Company On-Demand Car Tracking App (CarKenny)
App Development Project for HR Company Web-Based Job Search Platform Snagpad
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Comprehensive analysis done by DesignRush Agency Experts.
ScalaCode Global Pvt. Ltd. Reviews & Testimonials
Tanyaradzwa Man'ozho T/F Lecturer at T/F Lecturer National University of Science and Technology
5.0★
Mobile App Development Review from Tanyaradzwa Man'ozho
Scalacode has created a mobile application for iOS and Android. We initially had enough; the iOS app had been developed, so Scalacode reoptimized it and improved its performance. On the other hand, theyve built the Android version from scratch as a new application.Weve just launched the product, and the app works really well; its much faster performance-wise. Moreover, the product is more responsive, and our customers are happy.
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Candice Claassen Director at Edenglen High School
5.0★
Software Development Review from Candice Claassen
Scalacode has designed and developed my mobile app for iOS and Android. After signing the contract, I sent the team prototypes of my idea and vision for the app. Then, Scalacode started the development phase using React Native and Flutter, as well as Figma for design. The app is technically completed, and Scalacode is working on a couple of things. After launching the app, Scalacode will provide maintenance for a year.
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Mila Banerjee CEO at Pronti AI
5.0★
Mobile App Development Review from Mila Banerjee
We started with a discovery phase with Scalacode, lasting 34 weeks. During this time, we discussed my app's features, design, and required process flows. It was an insightful and valuable phase.Afterward, Scalacode provided a quote for app development, and since they did well during the discovery, I chose to proceed with them.Scalacode has since developed the app from scratch for both iOS and Android, using Flutter for iOS. We've been collaborating on ongoing development for almost three years. Although the app isn't live yet, I know Scalacode has successfully worked on several apps for prominent companies. Based on their work so far, I'm confident in the quality, which has been excellent, and I have no complaints.
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Reviews verified by DesignRush and sourced from the agency's profile
Maximus Inc.
AmeriSave Mortgage Corporation
Domino's
CarKenny
HAST
Institute of Electrical and Electronics Engineers
SnagPad
McDonald's
HMS Host
Thomson Medical Centre
Data sourced from the agency's DesignRush profile
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4.9 4.9 (14)
4.3 4.3 (35)
Appventurez Mobitech
Bridging the gap between Ideas and Reality
Top mobile app development company that offers cost-effective Android, iOS applications design and development services in USA and India. [... see all Appventurez Mobitech reviews ]
Location
San Jose, California
Number of Employees
100 - 249
Average Hourly Rate
$25/hr
Minimal Budget
$10,000 - $25,000
Portfolios Count
3 Projects Listed
Appventurez Mobitech Services
Mobile App Development
Web Development
Software Development
VR/AR
eCommerce Development
Wearables
IoT
AI Development
CRM Consulting
Staff Augmentation
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Clients and Projects
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App Development Project Tattoo Planet
App Development Project Meltoo
App Development Project Labbik
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Comprehensive analysis done by DesignRush Agency Experts.
Appventurez Mobitech Reviews & Testimonials
Martin Larsen Founder at Balloner i byen
4.8★
WordPress Website Design Review from Martin Larsen
Appventurez Mobitech is developing a customizable dashboard that allows users to track and manage shipments. They create backend panels and implement UI / UX designs provided by internal stakeholders.
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Reviews verified by DesignRush and sourced from the agency's profile
Tattoo Planet
Zoës Kitchen
Adviceme
Fitchirp
Forkspot
Catchat
Melto
Ezeepay
OneNation
i-Permit
Data sourced from the agency's DesignRush profile
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4.2 4.2 (1)

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Best San Jose Ethereum Blockchain Development Companies

Top US Mobile & Web App Development Agency

AppMakers USA Services

Clients and Projects

AppMakers USA Reviews & Testimonials

Cross-Platform Review from Awital Ifrah

Startup Review from Moishi Stern

Small Business Review from Jubilee Haddasah Munozvilla

Transforming Enterprises with AI Applications

ThirdEye Data Services

Clients and Projects

ThirdEye Data Reviews & Testimonials

Big Data Analytics Review from Matt Singer

Software Development Review from Kumar Mankala

Driving Change Through Technology - Apps, Ecommerce, Staff Aug, BPO, Next Gen Tech and more!

Trango Tech Services

Clients and Projects

Trango Tech Reviews & Testimonials

Mobile App Development Review from Ashleigh J. Shim

Mobile App Development Review from Fren D. Garcia

Mobile App Development Review from David V. Ringer

Building Products AI-Native Way

Talentica Software Services

Clients and Projects

Talentica Software Reviews & Testimonials

Software Development Review from Ashish Sharma

Software Development Review from Anonymous

Software Development Review from Anonymous

Enterprise Grade App & Web Development Services

RichestSoft Services

Clients and Projects

RichestSoft Reviews & Testimonials

Web Development Review from Lathan Ashton

Web Development Review from Robbie Hart

Web Development Review from James Shehan

Scalable Intelligence

ScalaCode Global Pvt. Ltd. Services

Clients and Projects

ScalaCode Global Pvt. Ltd. Reviews & Testimonials

Mobile App Development Review from Tanyaradzwa Man'ozho

Software Development Review from Candice Claassen

Mobile App Development Review from Mila Banerjee

Bridging the gap between Ideas and Reality

Appventurez Mobitech Services

Clients and Projects

Appventurez Mobitech Reviews & Testimonials

WordPress Website Design Review from Martin Larsen

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