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United States × California × Node.js Development × Corporate Services × $25,000 - $50,000 ×Clear Filters
Diffco is a software development company that builds cross-platform mobile apps, bespoke SaaS portals, custom database architectures, and admin management panels. The studio deploys clean Python, Node.js, React, and Swift codebases alongside automated testing setups and CI/CD pipelines engineered for...
Top Services:
AI Development
Software Development
Staff Augmentation
Mobile App Development
Web Development
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Location
San Jose, California
Number of Employees
50 - 99
Average Hourly Rate
$110/hr
Minimal Budget
$25,000 - $50,000
Portfolios Count
31 Projects Listed
Diffco Services
AI Development
Software Development
Staff Augmentation
Mobile App Development
Web Development
eCommerce Development
IoT
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Mars
Food Rocket
FlashGrid
Nokia
Instreamatic
Quire
Legionfarm
Latoken
Genius One
Shift
Data sourced from the agency's DesignRush profile
Diffco Reviews & Testimonials
Elvera Kaparchuk Co-Founder at SaveIT Receipts
5.0★
Mobile App Development Review from Elvera Kaparchuk
SaveIT is receipt management on autopilot. You connect your email once, and we import your receipts, extract every line item with AI, categorize it, and sync it with QuickBooks. The AI isn't a feature of the product, it is the product. If it reads a receipt wrong, everything downstream is wrong. We brought Diffco in to work on that core. Since April they've worked on our AI models, fixed security problems in the platform, and helped us build a real strategy around where AI belongs and where a conventional solution is the better call. The most important change was measurement: extraction accuracy is now a number we evaluate every change against, instead of something we judge by trying a handful of receipts. They were also honest in a way I didn't expect from an AI firm. When we assumed a problem needed a stronger model, they showed us it was in our data. That saved us time and money. They continue to support the AI side of the product, and they're easy to work with; direct, technically deep, and clear about trade-offs.
Ivan Pasichnyk CEO at WeLabelData
5.0★
AI Development Review from Ivan Pasichnyk
We brought Diffco in to deliver the AI and computer vision components for one of our clients, an image generation startup. Because the work sat inside our own client relationship, we needed a partner we could trust to operate at our standard without us managing them day to day - and that is exactly what we got. Diffco owned the technical approach, built the computer vision and AI layer, and delivered the full scope in three months, on schedule. The engineering quality was high, they raised the right questions early instead of late, and they handled the confidentiality the project required without us having to chase it. After delivery they stayed on to support the system, which mattered to us as much as the build itself. When you subcontract a technical project inside your own client relationship, the risk is that the partner makes you look bad. Diffco did the opposite. They've earned our trust and we'd work with them again.
Oleg Sotnikov CEO at AppMaster
5.0★
AI Development Review from Oleg Sotnikov
Diffco built a complex, production-grade AI agentic system and backend for our client's fintech platform owning architecture, AI/ML components, and AI agents in a security- and compliance-sensitive environment. They delivered on time and within budget, communicated proactively, and operated like part of our own team, taking ownership and suggesting better solutions throughout. Deep AI/ML and senior backend expertise. We'd happily work with them again.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
VerifiedVerified by the DesignRush team for authenticity and credibility.Award WinnerRecipient of a Best Design Award for outstanding work.
Boutique studio creating tailored web experiences.
Reach for the sky. We are Zero Negative. Your sidekick for big ideas. In a nutshell, Zero Negative is a small, boutique full-service design and development studio with a focus on creativity and close collaboration with clients. We make stuff - websites, web apps, interactive experiences, branding, and...
Top Services:
Web Development
Web Design
WordPress Website Design
Branding
UI/UX Design
Show more
Location
San Francisco, California
Number of Employees
Under 49
Minimal Budget
$25,000 - $50,000
Portfolios Count
8 Projects Listed
ZERO NEGATIVE Services
Web Development
Web Design
WordPress Website Design
Branding
UI/UX Design
Graphic Design
Digital Services
Mobile App Development
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Mercedes-Benz
United Nations Development Programme
KFC
Vodafone Foundation
GS1
Conad
Curative Biotech
Data sourced from the agency's DesignRush profile
ZERO NEGATIVE Reviews & Testimonials
Jaroslav Tyman Jr. General Manager at Automation IG
5.0★
Web Development Review from Jaroslav Tyman Jr.
We contacted Zero Negative about a two stage renewal of our company website with a very aggressive timeline for the first stage. Zero Negative worked and guided us through pulling off the first stage within our timeline while also ensuring that the content and ideas for that stage were readily applicable to the full design. When we got to the full design, they were fully responsible for corralling the various preferences and ideas from our team into a well executed cohesive site. We're now in a good spot and look forward to continuing to work with Zero Negative as our business and needs grow.
Susan E. Roberts Principal at Roberts Communications
5.0★
Web Development Review from Susan E. Roberts
Zero Negative did an exceptional job designing my website, roberts-communications.com. From the start, they understood that this wasn't just about aesthetics it was about positioning, credibility, and clarity for a senior-level communications brand.They translated a complex, high-stakes business into a site that feels polished, modern, and authoritative without being flashy or over designed. The process was collaborative, efficient, and thoughtful, and they were responsive to feedback while also offering smart guidance when it mattered.The final result reflects exactly how I want Roberts Communications to be perceived: strategic, sophisticated, and trusted. I would highly recommend Zero Negative to anyone looking for a design partner who understands brand, not just web building.
Anonymous President at OTEC Manufacturing
5.0★
Web Development Review from Anonymous
These guys are the best! We engaged with Zero Negative to develop a comprehensive web-based system for our factory that allows for managing orders, processes, and inventory. This initiative was essential for us to secure a big ticket client. We truly could not have accomplished this without their assistance. They dedicated considerable time to on-boarding and collecting the requisite information, followed by prototyping the software, and ultimately developing it from scratch. Overall, we are very satisfied.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
Our mission at Closeloop Technologies is to empower enterprises with transformative Software Development, from advanced conversational AI and custom CRM/ERP to robust mobile apps and e-commerce platforms. With our extensive industry knowledge, achieving success in digital innovation is second nature...
Top Services:
Software Development
Web Design
Mobile App Development
AI Development
Wearables
Show more
Location
Mountain View, California
Number of Employees
100 - 249
Average Hourly Rate
$25/hr
Minimal Budget
$25,000 - $50,000
Portfolios Count
31 Projects Listed
Closeloop Technologies Services
Software Development
Web Design
Mobile App Development
AI Development
Wearables
Web Development
eCommerce Development
CRM Consulting
Cloud Consulting
ERP Consulting
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Pacefunding
Cordance
Premier Talent Partners
Omnidian
Datacube.ai
HomeRun Financing
BioStem Technologies
UTR Sports
AJNA
Block & Tam
Data sourced from the agency's DesignRush profile
Closeloop Technologies Reviews & Testimonials
Rick Tomsic Founder and Chief Executive Officer at Tradovate, LLC
5.0★
Software Development Review from Rick Tomsic
Global business segment growth is requiring technology to keep up with the increase. Our platform is designed to be scalable and able to be implemented across several nations. We collaborated with Closeloop Technologies to work with our staff in order to scale up the programme.An whole agile team is provided by Closeloop Technologies to participate in our programme. At first, we gave them the data in hopes that they would aid in our execution. They have combined Spring Boot, JavaScript, and AWS cloud technologies.The platform is a value stream and full-suite insurance lifecycle. It is an internal iterative software programme.Working with Closeloop Technologies is simple. They pick up new roles rapidly and possess agile team abilities that are industry standard. The staff not only fits right in, but they also contribute their knowledge and perspectives, making them a vital component of the programme.
Henrique Dubugras Founder and Co-CEO at Brex
5.0★
Software Development Review from Henrique Dubugras
Services that had been slow or unavailable for weeks had to be brought back up. We must bring back our vital business role. After learning about our issue, the Closeloop project manager assigned a senior database specialist to address it. Our main programmer had a direct conversation with the database specialist of Closeloop after they listened to our problem and asked some follow-up questions. Within less than two hours, the solution to our issue had been verified and implemented.
Bill Rogers Chairman and CEO at Truist
5.0★
Software Development Review from Bill Rogers
We occasionally utilize outsourced resources to increase our team's ability to satisfy the commercial demands of our clients. This time, my goal was to create and enhance the products we were providing to clients. Their engineers joined our own team to work on the project, creating MetaTrader-based software for our traders. They assisted us in creating and refining a suite of services that give our clients more functionality; up until that point, the solution had been erratic and unconventional. Their most recent endeavor was the development of an income trading module. We employed a scrum methodology with sprint deliverables and agile planning. Along with narrative points, we also used our in-house bug tracking application for project and task management. Everything was really accurate.
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I am grateful that you took the time to visit! Because you are here, I may assume that you are searching for help with some aspect of software development, whether it is UI/UX design or mobile app development. You are at the appropriate location. Your unique requirements for digital company might become a...
Top Services:
Mobile App Development
Web Design
Software Development
WordPress Website Design
eCommerce Development
Show more
Location
Los Angeles, California
Number of Employees
100 - 249
Average Hourly Rate
$30/hr
Minimal Budget
$25,000 - $50,000
Portfolios Count
16 Projects Listed
Differenz System Services
Mobile App Development
Web Design
Software Development
WordPress Website Design
eCommerce Development
IoT
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
London Sports
G4S
Pxsell
Hubfleet
HomeFit RL
Grow Games & Icebreakers
Awakened Mind
Home Inspector Tech
Data sourced from the agency's DesignRush profile
Differenz System Reviews & Testimonials
Mary Undisclosed at Undisclosed
3.2★
Mobile App Development Review from Mary
Differenz System, thank you so much for your help with my custom application development project. Your expertise and professionalism was fantastic. I would definitely recommend your company to anyone looking for a top-notch web development service. Thanks again.
Romy Parikh Owner at 3W Creators LLP
5.0★
Mobile App Development Review from Romy Parikh
I am very pleased with Differenz System's overall services and support along with their state of the art mobile application delivery. Your team has excellent communication skills and a fast response and turnaround time. Highest work quality. I can say that Differenz System is a honest and decent group of people with the highest work ethic I have seen for development team. Wishing you people very best. Cheers.
Peter Meldrum Digital Product Manager at London Sport
5.0★
Web Development Review from Peter Meldrum
Differenz have provided London Sport excellent web development services across three products. We have been delighted with all areas of their work; expertise, technical knowledge and account management. We have asked Fazil and his team to take on the rebuild of an existing product, the ongoing development of another and build another from scratch – on all they have exceeded expectations.
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EffectiveSoft is an AI-enabled product engineering company focused on digital products and enterprise systems. We combine software engineering, UX expertise, and AI capabilities to help companies build products that can adapt to changing requirements, integrations, and growth...
Top Services:
Software Development
Mobile App Development
Big Data Analytics
AI Development
ERP Consulting
Show more
Location
San Diego, California
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
CITY INDEX
TruBridge
CNote
Plato
Intelon Optics
InCheq
Nissin Foods
Soutron Ltd.
BullionRock
InContinuum
Data sourced from the agency's DesignRush profile
EffectiveSoft Reviews & Testimonials
Alex Silverstein Chief Technology Officer at Unified Digital Group, LLC
5.0★
Software Development Review from Alex Silverstein
Over the past 13 years, I’ve valued the opportunity to work alongside this team. Their expertise played a central role in my company’s success, and I’ve come to rely on them for their consistency, attention to detail, and thoughtful approach.
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.
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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The best eCommerce development company empowering you with the tools you need to conquer your industry...
Top Services:
Wearables
VR/AR
Mobile App Development
Software Development
eCommerce Development
Show more
Location
Pleasanton, California
Number of Employees
250 - 499
Average Hourly Rate
$35/hr
Minimal Budget
$25,000 - $50,000
Portfolios Count
11 Projects Listed
Folio3 Services
Wearables
VR/AR
Mobile App Development
Software Development
eCommerce Development
IoT
Web Design
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Lioher - Magento B2B Solution
TJM
Flexiglass
Trilink
Colgate-Palmolive
Standard Chartered
Zoetis
Mercedez Benz
Barnes and Noble
Merck
Data sourced from the agency's DesignRush profile
Folio3 Reviews & Testimonials
Irshad Customer Account Executive at Fairsquare UK
5.0★
Web Development Review from Irshad
I am very happy about how Folio3 gives 100% in the work dedication and has a very organized and energetic team who thrive with innovative ideas for our business. We are still using Folio3 on a regular basis and also get excellent updates from any usage left so that we can utilize our monthly allowance which is great teamwork.
Mike Do CTO at Barnes & Noble
5.0★
Web Development Review from Mike Do
Whether it’s a new development, update or maintenance – Folio3 always shines through. Their turnaround time is always stellar, it’s a pleasure to work with them.
Stewart Kelly Founder & CTO at SideStep
5.0★
Software Development Review from Stewart Kelly
They have helped us manage and execute the bulk of the engineering work necessary for integrating with our partners in the Airline, Car and Hotel verticals.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
Designing and Building Platforms for Your AI Bot Development.
ISBX (Interactive, Strategy, Branding, Execution) stands as the premier web and mobile application development agency in Southern California, boasting extensive expertise across a diverse spectrum of digital services such as Mobile, Blockchain, IoT, Web3, and Web Development. With a track record of...
Top Services:
Software Development
Mobile App Development
Web Development
Blockchain
IoT
Show more
Location
Los Angeles, California
Number of Employees
50 - 99
Average Hourly Rate
$150/hr
Minimal Budget
$25,000 - $50,000
Portfolios Count
7 Projects Listed
ISBX Services
Software Development
Mobile App Development
Web Development
Blockchain
IoT
UI/UX Design
Web Design
Wearables
Software Testing
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Apple
RedBull
Lexus
American Honda
Brain Corp
Science 37
WAG!
USC
Pasco Scientific
Data sourced from the agency's DesignRush profile
ISBX Reviews & Testimonials
Peggy McCabe Review from Google
5.0★
Peggy McCabe's Review Sourced from Google
ISBX is a very professional and talented web development company. The overall experience I had with them in the redesign of our website was outstanding. They were extremely creative, provided viable options at all junctures, and delivered on time and on budget. ISBX also provided a very hands-on, and professional team who understood our need for brand engagement and outreach to a new audience with our website refresh. The team also optimized the new site for mobile usage which was very important to us. ISBX successfully executed our complex project efficiently, with excellent communication and attention to detail at every step. I wouldn't hesitate to work with them again.
Kim Farley Review from Google
5.0★
Kim Farley's Review Sourced from Google
ISBX helped us from concept to launch without any issues. They were communicative, patient, and able to quickly implement solutions to project changes that came up along the way. We appreciate that they took the time to hold our hands with explanations and detailed questions to make the process as stress free as possible and to get a good understanding of our product.
Tony Alfaro Review from Google
5.0★
Tony Alfaro's Review Sourced from Google
I've been a client of ISBX for nearly three years. They are hands down the best development firm I have ever worked with. They are on budget and on time consistently. They are trustworthy, highly communicative, and very versatile. Nothing is in the "too hard box" for them.
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Funkhaus is an independent, leadership-led Los Angeles digital agency that brings strategy, content, design, and technology together to build distinctive brands and digital platforms...
Top Services:
Web Design
Social Media Marketing
Branding
Content Marketing
UI/UX Design
Show more
Location
Los Angeles, California
Number of Employees
Under 49
Average Hourly Rate
$300/hr
Minimal Budget
$25,000 - $50,000
Portfolios Count
4 Projects Listed
Funkhaus Services
Web Design
Social Media Marketing
Branding
Content Marketing
UI/UX Design
Digital Strategy
Digital Services
Graphic Design
Web Development
Logo Design
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Our Model Is Much Different And Way Better Than the Usual Offshoring Nonsense.
Our Yourshore model is intentionally designed to give you the very best remote engineering solution that solves for all the usual pain points that plague traditional offshore vendors...
Top Services:
Software Development
HR Outsourcing
Location
Menlo Park, California
Number of Employees
250 - 499
Average Hourly Rate
$50/hr
Minimal Budget
$25,000 - $50,000
TurnKey labs Services
Software Development
HR Outsourcing
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Aiming to enhance the lives of billions of users with innovative technology solutions.
BestPeers is a top software development company specializing in custom software, website development, UX/UI design, and full-stack solutions. With a focus on quality, innovation, and timely delivery, BestPeers creates consumer-centric tech solutions across diverse industries, ensuring client satisfaction and...
Top Services:
Digital Strategy
Web Design
eCommerce Development
Web Development
UI/UX Design
Show more
Location
California City, California
Number of Employees
250 - 499
Average Hourly Rate
$25/hr
Minimal Budget
$25,000 - $50,000
Best Peers Services
Digital Strategy
Web Design
eCommerce Development
Web Development
UI/UX Design
WordPress Website Design
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
CONTUS Tech stands as a prominent global authority in digital engineering services, heralded for its transformative impact on businesses worldwide. Our forte lies in crafting cutting-edge digital products, pioneering connected vehicle experiences, and spearheading next-generation streaming services that...
Top Services:
DevOps Consulting
IT Services
Mobile App Development
IoT
Digital Services
Show more
Location
Santa Clara, California
Number of Employees
250 - 499
Average Hourly Rate
$30/hr
Minimal Budget
$25,000 - $50,000
CONTUS Tech Services
DevOps Consulting
IT Services
Mobile App Development
IoT
Digital Services
Software Development
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Hyundai
ICICI Bank
JCB
CocoCola
Versa Networks
Data sourced from the agency's DesignRush profile
CONTUS Tech Reviews & Testimonials
bharath kumar Review from Google
1.0★
bharath kumar's Review Sourced from Google
Never fall for the positive feedbacks. I'm completely agree with the following comments which have low ratings. I have experienced the same kind of problem with this company. I strongly recommended to stay away from this company.If you really care about the mental health, Please stay away from this company.
Dhanraj Parthasarathy Review from Google
1.0★
Dhanraj Parthasarathy's Review Sourced from Google
Heads up to anyone looking at this place: they deleted a your comments if they're negative. Seriously, think twice before joining.I'm not kidding, avoid this company if you care about your mental health. Make sure you really read between the lines before you sign anything with this company.Don't fall for the positive reviews. It had given by the employees from the managements. It's all fake.It's just a really disrespectful environment. They'll keep stringing you along during your probation, saying they can't make it official until the project wraps. Then, the second it's done, they slap you with a PIP and suddenly your performance "isn't meeting expectations."They also expect you to work weekends regularly and don't give any comp-off for it. Oh, and they're doing another round of layoffs—for the second time! You'll never get recognition for your hard work, and you'll constantly feel like your job is on the line.Honestly, just do not join here. It's not worth it. And to whoever tries to delete this... well, let's just say it's pretty low to try and hide the truth about how they treated us.
Naveen Kumar. L Review from Google
1.0★
Naveen Kumar. L's Review Sourced from Google
Worst Place I’ve Ever Worked – Avoid at All CostsIf you care about your health, run. This company thrives on exploitation — 16+ hour workdays, weekends stolen, and deadlines that destroy any work-life balance. Management has zero empathy and treats burnout like a badge of honor. Expect to be working till 3 AM regularly while your mental health crumbles. No appreciation, no boundaries, no future.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews