Looking for a software testing company in New York City to ensure your product is free from defects and performs as expected before its release? We've carefully selected the top NYC-based companies on this list based on their expertise, client reviews, and proven track records in delivering high-quality testing services. Whether you're in fintech, eCommerce, or mobile apps, you can easily find the right company by using our advanced filters.
Organic rankings are determined by five factors: top services, reviews, portfolio, awards/press, and team expertise. Sponsored listings pay for a placement that appears above organic positions. Sponsorship does not affect star ratings or review content - read more on our methodology page.

Kevych Solutions
VerifiedVerified by the DesignRush team for authenticity and credibility.Expert-Vetted - TOP 1% in Mobile App Development
Kevych Solutions isn`t just a software development team - we`re your partners in creating innovative, high-quality digital solutions that truly make an impact...
Top Services:
- Mobile App Development
- Design Services
- Software Development
- Web Development
- Staff Augmentation
- Show more
- Location
- New York City, New York
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $30/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 33 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsKevych Solutions Services
Data sourced from the agency's DesignRush profileeSIMo GrowthBook Holodex Silo Posted Fara Weanie OffLesson Spill NetBird
Kevych Solutions Reviews & Testimonials

Mobile App Development Review from Vasco Rouw
Weve been working with Kevych Solutions full-time for over a year, and the experience has been excellent. They handle the complete end-to-end development of our AI-powered mobile apps, including UI/UX, frontend and backend development, AI integrations, infrastructure, deployment, and ongoing support.What stands out most is the extremely high level of their technical expertise and execution quality. They actively use AI and modern development workflows to maximize efficiency and deliver results quickly. The team is highly responsive, proactive, and always goes the extra mile to meet deadlines.Since working together, we scaled from 0 to over 100,000 subscribers in just 8 months, and our apps are now generating more than $1M in monthly revenue. Whenever challenges came up, we solved them together efficiently, and Kevych Solutions continuously adapted and grew alongside our projects.We highly recommend them to anyone looking for a reliable, high-level mobile app development partner.

Mobile App Development Review from Alex Kayaian
Kevych was amazing to work with, and an integral part of our team. They delivered on time, with high quality, and consistent communication. You can't ask for a better partner when developing a project.

Mobile App Development Review from Lucas Chatham
I had an excellent experience working with this engineering firm to build a React Native app. Oleg and Ihor were exceptional software engineerstheir technical skills were top-notch, and they consistently delivered clean, well-structured code on time.What really set this team apart was Volodymyr, their CTO. He was incredibly hands-on, maintaining clear and frequent communication throughout the project. He was always responsive and proactive in managing the work, which made the entire process smooth and stress-free.The team was professional, reliable, and genuinely committed to quality. They understood my requirements and provided valuable input that improved the final product. Highly recommend this firm for anyone seeking skilled developers and excellent project management!
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsHigh Voltage Code Since 2010
ELEK+RIK: Web App Development, Mobile App Development for iOS & Android, AI Integration & Development Experts for Long-Term US Projects since 2010...
Top Services:
- Mobile App Development
- Software Development
- Web Development
- Blockchain
- VR/AR
- Show more
- Location
- New York City, New York
- Number of Employees
- Under 49
- Average Hourly Rate
- $60/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 18 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsELEK+RIK Services
Data sourced from the agency's DesignRush profileCoca - Cola Mercedes BMW VeChain Sony Nike Toyota Hyundai McDonald's Chang
ELEK+RIK Reviews & Testimonials

Web Development Review from Philip Wilson
ELEK+RIK team provided a streamlined process that was both simple and enjoyable. They kept to the budget and communicated well throughout the project. ELEK+RIK comes highly recommended and we would work with ELEK+RIK again if given the opportunity.

Mobile App Development Review from George McKerrow
ELEK+RIK has worked on improving our React Native mobile app. We had the skeleton of an app, but they were able to do an end-to-end re-design of each of the main pages. Since then, they`ve successfully implemented around ~20 different features on our mobile app. We share a spec and design, they provide an estimate and occasionally some design options, then when completed create a PR on GitHub. Their code is well-organized, easy to follow, and rarely do we have to go back-and-forth about bugs. They are also excellent communicators - carefully following threads on Slack, effectively communicating design and engineering tradeoffs, and even producing a 10m Loom video walking through a diagram. Their communication is top-notch. They are super easy to work with even though we are on very different time zones. And, I am impressed at the speed and execution of their development.

Web Development Review from John Riley
ELEK+RIK was tasked with creating a website for our company from scratch. They were professional, communicative, and dedicated to delivering an exceptional website that perfectly captured the essence of our company while exceeding our expectations. They are a talented, reliable, and customer-focused web design and development company that I would highly recommend to anyone.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsWe don't just test. We make your products successful.
QA Mentor is a multi-award-winning global software testing and quality assurance company headquartered in New York, with a team of 400+ QA experts. CMMI Level 3 appraised, ISO 27001, 9001, and 20000 certified. With over 100 global awards and recognitions, serving 400+ clients in 28 countries...
Top Services:
- Software Testing
- AI Development
- Staff Augmentation
- DevOps Consulting
- Managed Services
- Show more
- Location
- New York City, New York
- Number of Employees
- 250 - 499
- Average Hourly Rate
- $20/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 2 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsQA Mentor Services
Data sourced from the agency's DesignRush profileVestorly Securrency Bitcentral ButterflyMX Sterling Citi Bank HSBC Amazon Intel Yotta Gate
QA Mentor Reviews & Testimonials

Software Testing Review from Lindsey Allard
They move really quickly which is huge for us as a startup. They are also very flexible. We added their team to our slack channel so now it’s so quick to ask them to test certain thing and they meshed with our dev team seamless.

Software Testing Review from Maria Musillo
Ongoing web application quality assurance testing including new features and regression testing. Additional penetration testing and site scanning. Ability to quickly assign a resource to a new project, little lead time needed. If a resource gets reassigned they do the handover on their end without being dependent on customer.

Software Testing Review from Domoniq Doby
QA Mentor has been an excellent on demand source for our immediate QA needs. Not only are they prompt and great at executing directions, they exceed expectations. They also have great integrity and are always responsive when needed, and not needed. I will continue to use them for my on demand QA services.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsLet's Create Digital Success Together!
Edvantis is a data, AI & software engineering partner with over 400 talented professionals operating in Central & Eastern Europe and the USA...
Top Services:
- Software Development
- AI Development
- Big Data Analytics
- Staff Augmentation
- Mobile App Development
- Show more
- Location
- New York City, New York
- Number of Employees
- 250 - 499
- Average Hourly Rate
- $40/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 12 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsEdvantis Services
Data sourced from the agency's DesignRush profileIndeed Kardex Remstar Freenet Group DocCirrus TrustRadius Modulsystem Sweden ATRON COLLENDA SEMDATEX KPC Labs
IT Solution Simplified
Winklix is a digital transformation and IT consulting company delivering custom software, mobile apps, Salesforce solutions, AI development, and cloud services. We help startups and enterprises build scalable, high-performing digital solutions that drive growth and innovation...
Top Services:
- AI Development
- Mobile App Development
- Software Testing
- Software Development
- CRM Consulting
- Show more
- Location
- New York City, New York
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 1 Project Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsWinklix Services
Data sourced from the agency's DesignRush profileAT&T Boeing Bajaj Finserv Burberrys Coles Mtailor OnTheMarket Valvoline VM Ware Expeditors
Winklix Reviews & Testimonials

Mobile App Development Review from Ramada Jaida
hey showed great enthusiasm for development. I found the timelines of their work most impressive. I actually like working with everyone on their team- they’re very bright, innovative , and respectful. They desire help and contribute with their vision to our product was impressive.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsAgile and Client Centric Software Development
Captus Technologies offers professional services since 11+ years for more than 2300+ website developed. We have worked variety of industries such as Retail, Real Estate, Logistics, Healthcare and many more. We have Developed 1100+ Brands across the world. Our certified mobile app developers is committed to...
Top Services:
- UI/UX Design
- Software Development
- Web Development
- eCommerce Development
- Mobile App Development
- Show more
- Location
- New York City, New York
- Number of Employees
- Under 49
- Average Hourly Rate
- $10/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 14 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsCaptus Technologies Services
Data sourced from the agency's DesignRush profileNestle Synagie Bosch
AI Software Development Company USA
Tabdelta is a global AI-driven software development company in New York USA delivering innovative digital solutions to startups, SMBs, and enterprises across New York and worldwide...
Top Services:
- Software Testing
- Software Development
- AI Development
- Location
- New York City, New York
- Number of Employees
- Under 49
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $1,000 - $10,000
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsTabdelta Solutions Services
Data sourced from the agency's DesignRush profileKiwi QA Tech Plus Thinkwik
Tabdelta Solutions Reviews & Testimonials
Bhavika Hirani's Review Sourced from Google
Great onboarding experience with a positive and supportive work culture. The team is collaborative, professional, and always willing to help. It has been a wonderful experience working here.
Mitesh Patel's Review Sourced from Google
Excellent .NET services with a highly skilled and professional tabdelta team.They delivered clean, scalable, and well-documented code on time.Communication was clear, and requirements were understood perfectly.Highly recommended for reliable and quality .NET development.
Jigna Panchal's Review Sourced from Google
Great Salesforce consulting and development support.The team was responsive, knowledgeable, and efficient.Would definitely recommend their services.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsLets Make an Extraordinary Product Together
For over 14 years, Devico has been building digital experiences which drive customer engagement, a time-to-market advantage and revenue acceleration...
Top Services:
- Mobile App Development
- Software Development
- Software Testing
- AI Development
- IoT
- Show more
- Location
- New York City, New York
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $49/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 10 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsDevico Solutions Services
Data sourced from the agency's DesignRush profileArklign Abbott Mimecast BP Chess.com Descript Mint Compass Sprinklr Tipalti
Software development | HealthTech & Security experts
TechMagic - a full-cycle development company with strong Healthtech expertise that provides end-to-end software development services to businesses.With a proven track record of 200+ successful projects, 10+ years on the market, and 300+ experts onboard, TechMagic is your trusted partner...
Top Services:
- Software Development
- Mobile App Development
- AI Development
- Cybersecurity
- IT Services
- Show more
- Location
- New York City, New York
- Number of Employees
- 250 - 499
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 5 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsTechMagic Services
Data sourced from the agency's DesignRush profileElements.cloud MyTelescope Good.co Acorn-I Mobile Practice Bamboo Spirii Coach Solutions C-Me
AI-first product engineering. From idea to production.
At Vectorium Labs, we combine deep technical expertise with bold innovation to deliver cutting-edge, AI-powered software solutions that solve real-world challenges...
Top Services:
- AI Development
- Software Development
- Mobile App Development
- Big Data Analytics
- Web Development
- Show more
- Location
- New York City, New York
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 1 Project Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsVectorium Labs Services
Data sourced from the agency's DesignRush profileIntrinsic Tech Innovative Tech Invariant Trading
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