Best Performance Testing Services

8 Companies - Rankings updated: April 02, 2026

All agencies on DesignRush undergo evaluation based on professional expertise and verified client reviews. Please note that certain placements are paid partnerships.

United States × Maryland ×

ELEK+RIK
High 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 [... see all ELEK+RIK reviews ]
Location
Baltimore, Maryland
Number of Employees
Under 49
Average Hourly Rate
$60/hr
Minimal Budget
$1,000 - $10,000
Portfolios Count
18 Projects Listed
ELEK+RIK Services
Mobile App Development
Software Development
Web Development
Blockchain
VR/AR
AI Development
eCommerce Development
Software Testing
IT Services
WordPress Website Design
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Clients and Projects
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Artificial Intelligence Project for Health Care Company Sky Therapist Website Development
App Development Project Doctor on Demand
App Development Project NFL Premium streaming platform
App Development Project for Automotive Company Automotive Mobile App Development
App Development Project BMW Driver's Guide
App Development Project Mercedes-Benz Guides Mobile App
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Comprehensive analysis done by DesignRush Agency Experts.
ELEK+RIK Reviews & Testimonials
Philip Wilson Managing Director at Premier Automation Ltd
5.0★
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.
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George McKerrow CEO at Ted's Montana Grill
5.0★
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.
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John Riley Executive Vice President at MediaCentric
5.0★
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.
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Reviews verified by DesignRush and sourced from the agency's profile
Coca - Cola
Mercedes
BMW
VeChain
Sony
Nike
Toyota
Hyundai
McDonald's
Chang
Data sourced from the agency's DesignRush profile
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4.9 4.9 (19)
5.0 5.0 (2)
Instinctools
Your AI-powered Engineering Partner
Instinctools is a leading AI and digital product engineering company with 25+ years of experience. Their services include AI-driven custom software development, advanced data analytics, and digital product engineering. Specializing in end-to-end AI integration, they help businesses harness the powe [... see all Instinctools reviews ]
Location
Potomac, Maryland
Number of Employees
250 - 499
Average Hourly Rate
$40/hr
Minimal Budget
$10,000 - $25,000
Portfolios Count
61 Projects Listed
Instinctools Services
Software Development
Web Development
Mobile App Development
Big Data Analytics
eCommerce Development
Product Design
AI Development
IT Services
ERP Consulting
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Clients and Projects
View Full Portfolio
Software Development Project Top-Notch Quality Assurance for a Custom LMS
Software Development Project Gen AI-Driven HTML To DITA Converter
Software Development Project Tech Documentation Management System
Software Development Project Inventory Management System for a Retailer
Software Development Project Product Engineering For an AgTech Manufacturer
Software Development Project Vending Machine Solution
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Comprehensive analysis done by DesignRush Agency Experts.
Instinctools Reviews & Testimonials
Undisclosed Manager ITM/PSE - Procurement Systems Daimler AG at Daimler
5.0★
Software Development Review from Undisclosed
Daimler's new Global Buying System, GLOBUS, now features proficient web-based assistance and user support. The client opted for Instinctools' forward-thinking solution that catered to its requirements, especially in multilingual content, adaptability, and scalability. (Verified via email)
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Edward Rimon Product and Customer Experience Director at Retail company
5.0★
Software Development Review from Edward Rimon
The client hadn't realized how much of its data went unused, with nearly 90% of decisions made on barely half the data. But with Instinctools' business intelligence expertise and proactive approach, the client now makes decisions with greater confidence, drawing from a more comprehensive data set and quickly addressing new challenges. All tasks, and more, were efficiently handled by a tech-skilled and proactive team. (Verified via email)
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Dr. Jonas Block Product Owner at Ipwe
5.0★
Software Development Review from Dr. Jonas Block
Instinctools' has the professionalism and flexibility that young companies need. Ipwe trusts the agency's tested workflow that integrates well with internal processes. The ability to quickly add experienced and valuable professionals without prolonged interviews is a major plus. Moreover, this team is full of interesting and kind people. (Verified via email)
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Reviews verified by DesignRush and sourced from the agency's profile
Swiss Red Cross
SAP
FUJITSU
BURDA DIGITAL
DAIMLER
VoxGen
Acrolinx
trimet
darwinapps
AT Consulting
Data sourced from the agency's DesignRush profile
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4.9 4.9 (10)
5.0 5.0 (14)
Azumo
Build Intelligent Apps for Web, Mobile, Data, AI and Cloud
Azumo helps businesses build intelligent apps by providing top-tier developers skilled in AI, data engineering and enterprise web & mobile applications. Our expertise has earned the trust of industry leaders like Facebook, Twitter, Discovery, Zynga, and NCSoft. [... see all Azumo reviews ]
Location
Baltimore, Maryland
Number of Employees
100 - 249
Average Hourly Rate
$55/hr
Minimal Budget
$50,000 & Up
Portfolios Count
9 Projects Listed
Azumo Services
AI Development
Software Development
Staff Augmentation
Mobile App Development
Big Data Analytics
DevOps Consulting
Cloud Consulting
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Clients and Projects
View Full Portfolio
Software Development Project for Health Care Company Web Application Development and Software Staffing
Software Development Project for Corporate Services Company Advisory Firms Software: Full Transition and Modernization
Artificial Intelligence Project for Entertainment Company Generative AI Enterprise Search
Artificial Intelligence Project for AI Company Divining Cultural Trends with AI
Artificial Intelligence Project for Finance Company Generating Stock Market Alpha with AI
Artificial Intelligence Project for Entertainment Company AI-Powered Skill for Alexa and Google Home
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Comprehensive analysis done by DesignRush Agency Experts.
Azumo Reviews & Testimonials
Michael S. Director at Software Development Company
5.0★
Software Development Review from Michael S.
We selected Azumo to develop our software. We transitioned from another development company, so Azumo was initially responsible for migrating our existing code and environments. We are currently still working with Azumo as our nearshore software development team on adding new items to our software.
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Anonymous CTO at Healthcare Company
5.0★
UI/UX Design Review from Anonymous
Azumo helped us migrate our existing UIs into a new framework, creating reusable components and the infrastructure needed for future development. The developer they assigned became a seamless part of our team, always punctual, responsive, and a great fit overall.
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Anonymous VP Product & Engineering at Sales & Mktg Software Company
5.0★
Software Development Review from Anonymous
Thanks to Azumo’s work, our product is now more scalable, optimized, and ready for a growing user base. Their team has managed the engagement effectively, keeping us updated and addressing any challenges along the way. We’ve appreciated their constant availability and proactive communication.
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Reviews verified by DesignRush and sourced from the agency's profile
Discovery Channel
Meta
Zynga
Jostens
Assembled Brands
NGL
NCSoft
Twitter
Horoscope.com
Bento
Data sourced from the agency's DesignRush profile
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4.8 4.8 (12)
4.6 4.6 (24)

Orases
Custom Software to Reach Your Vision
We create custom software solutions that transform your process, empower your people, and help you reach your vision. Our team of experts partner with you in a radically transparent process to understand your unique needs, then build a powerful software solution that is scalable, efficient, and cost [... see all Orases reviews ]
Location
Frederick, Maryland
Number of Employees
50 - 99
Average Hourly Rate
$150/hr
Portfolios Count
3 Projects Listed
Orases Services
AI Development
Software Development
Mobile App Development
IT Services
Cybersecurity
Big Data Analytics
UI/UX Design
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 Mobile App Development
.Net Development Project Services .NET Software Development
App Development Project Application Support
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Comprehensive analysis done by DesignRush Agency Experts.
Orases Reviews & Testimonials
Jonathan Gessert CEO at 321 Web Marketing
5.0★
Software Development Review from Jonathan Gessert
We partnered with Orases to develop and maintain a multi-tenant workflow management system and customer portal, tailored to streamline our customers and internal team's creation processes. Our previous systems used dated technologies, but Orases stepped in with a PHP and React solution that transformed how we plan, write, edit, review, and publish content at substantial scale. The system now fully supports our end-to-end workflow, allowing for seamless collaboration across teams while significantly improving overall efficiency.Orases exceeded our expectations by delivering a demo in just six months, with the full application live within eight months. Their attention to detail, consistent communication, and ability to stay on schedule were remarkable throughout the project. Their project management approach was highly effective, ensuring that every stage of development was completed with precision and aligned with our needs.The results have been outstanding. The new system has enabled us to increase productivity, handle more complex projects, and reduce the time spent in content quality assurance and client feedback loops. This has directly contributed to our companys growth and enhanced our ability to scale operations efficiently.What stood out most was Orases's methodical and thoughtful approach. They took the time to deeply understand our goals and delivered a solution that met both our immediate needs and long-term business objectives. Their commitment to excellence and alignment with our vision truly made a difference.Working with Orases has been an incredible experience, and their ability to provide innovative solutions, paired with their outstanding teamwork, has been a major asset. We look forward to continued collaborations with their talented team.
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Tiffany Thomas Review from Google
5.0★
Tiffany Thomas's Review Sourced from Google
Working with Orases has been a game-changer. From day one, they understood our goals and challenges, then delivered a custom solution that streamlined our operations, improved the customer experience, and helped grow our bottom line.
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Nema Semnani Review from Google
5.0★
Nema Semnani's Review Sourced from Google
I'm way overdue in leaving this review. The team at Orases are the best in the biz when it comes to all aspects of app/software development, especially AI software dev. They've been instrumental in helping guide us through the ever-changing landscape of AI, since it definitely feels like if we blink, what we thought was cutting-edge in AI, becomes "old news." Orases helps us stay ahead of the curve...plus on a personal level, they're a genuine joy to work with. Highly recommend!
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Reviews verified by DesignRush and sourced from the agency's profile
NFL Foundation
MLB Pitch, Hit & Run
NFL Flag Football
NFL Punt, Pass & Kick
K2M
Mental Health Association
José Andrés
Academy90
American Society of Interior Designers
American Kidney Fund
Data sourced from the agency's DesignRush profile
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4.3 4.3 (1)
4.9 4.9 (35)
Grant Thornton
IT, Business, BPO, Audit, Tax and Advisory are just the beginning.
Grant Thornton LLP (US) is an IT, project management, audit, tax, AgTech, and BPO company headquartered in Chicago, Illinois with over 50 U.S. offices and access to a global network or member firms in over 135 countries. We offer a broad range of services in strategy and consulting, operations, technology and [... view Grant Thornton profile ]
Location
Baltimore, Maryland
Number of Employees
1000 & Up
Average Hourly Rate
$35/hr
Minimal Budget
$1,000 - $10,000
Portfolios Count
2 Projects Listed
Grant Thornton Services
Accounting
Business Consulting
Market Research
HR Outsourcing
Software Development
IT Services
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Grant Thornton Reviews & Testimonials
Theodore Mall Review from Google
4.0★
Theodore Mall's Review Sourced from Google
One of the world’s leading organizations of independent audit, tax and advisory firms. Grant Thornton has revenues in excess of $1.9 billion and operates more than 50 offices.
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Reviews verified by DesignRush and sourced from the agency's profile
Financial industry
Real estate industry
Media and Entertainment industry
Data sourced from the agency's DesignRush profile
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4.5 4.5 (13)
Soft Does
Custom Software That Works in the Real World
SoftDoes builds custom software, AI, and web applications for mid-market companies that need enterprise-grade results without the overhead of an in-house team. U.S.-based leadership. Full IP ownership. No lock-in. [... view Soft Does profile ]
Location
Bethesda, Maryland
Number of Employees
50 - 99
Average Hourly Rate
$75/hr
Minimal Budget
$10,000 - $25,000
Portfolios Count
1 Project Listed
Soft Does Services
Software Development
AI Development
Mobile App Development
Web Development
UI/UX Design
Cloud Consulting
Blockchain
Software Testing
Digital Strategy
Big Data Analytics
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Clients and Projects
View Full Portfolio
Software Development Project for Health Care Company Custom Finance Platform for Healthcare Practice
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Comprehensive analysis done by DesignRush Agency Experts.
Altera
Brizacorp
Color and Harmony
FMY Orthodontics
Data sourced from the agency's DesignRush profile
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Sketch Development Services
Better Teams // Better Software
Sketch provides software development services for Fortune 500 clients and startups alike. We specialize in product delivery consulting, software development services, and cloud consulting services. [... view Sketch Development Services profile ]
Location
Baltimore, Maryland
Number of Employees
Under 49
Minimal Budget
$50,000 & Up
Sketch Development Services Services
Software Development
Cloud Consulting
UI/UX Design
eCommerce Development
Mobile App Development
DevOps Consulting
Staff Augmentation
AI Development
Software Testing
IT Services
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Sketch Development Services Reviews & Testimonials
Monica Review from Google
5.0★
Monica's Review Sourced from Google
Amazing and talented people. I’ve worked for both client and agency side and can can say their partnership is amazing. They truly care about ongoing operations and not just ending it at a project level. Highly recommend! Message me if you want specifics.
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John Andesilich Review from Google
5.0★
John Andesilich's Review Sourced from Google
I own a marketing firm in Troy MO and I recently met with Calvin at Sketch Development Services to discuss a software development project I have been thinking about pursuing. He was very nice, easy to speak to and even though his field is a bit out of my knowledge base, he was able to explain things in a way that made perfect sense. I look forward to working with him and his team in the future and recommend anyone looking for a software or app development company to give them a try.
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Reviews verified by DesignRush and sourced from the agency's profile
U.S. Bank
Centene Corporation
Maritz
Change Healthcare
Stifel
Reinsurance Group of America (RGA)
bioMerieux
CareSource
CENTEGIX
Purina
Data sourced from the agency's DesignRush profile
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4.8 4.8 (8)
Sthenos Technologies
AI-Driven Software Innovation & Digital Transformation
Empower your business with Al-driven software solutions and cutting-edge digital transformation strategies. [... view Sthenos Technologies profile ]
Location
North Bethesda, Maryland
Number of Employees
Under 49
Average Hourly Rate
$50/hr
Sthenos Technologies Services
AI Development
Mobile App Development
Software Development
Blockchain
Software Testing
ERP Consulting
Big Data Analytics
Managed Services
Cloud Consulting
Cybersecurity
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
SpaceX
Meta
Goldman Sachs
WellMed
Groupon
Data sourced from the agency's DesignRush profile
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Best Performance Testing Services

High Voltage Code Since 2010

ELEK+RIK Services

Clients and Projects

ELEK+RIK Reviews & Testimonials

Web Development Review from Philip Wilson

Mobile App Development Review from George McKerrow

Web Development Review from John Riley

Your AI-powered Engineering Partner

Instinctools Services

Clients and Projects

Instinctools Reviews & Testimonials

Software Development Review from Undisclosed

Software Development Review from Edward Rimon

Software Development Review from Dr. Jonas Block

Build Intelligent Apps for Web, Mobile, Data, AI and Cloud

Azumo Services

Clients and Projects

Azumo Reviews & Testimonials

Software Development Review from Michael S.

UI/UX Design Review from Anonymous

Software Development Review from Anonymous

Custom Software to Reach Your Vision

Orases Services

Clients and Projects

Orases Reviews & Testimonials

Software Development Review from Jonathan Gessert

IT, Business, BPO, Audit, Tax and Advisory are just the beginning.

Grant Thornton Services

Grant Thornton Reviews & Testimonials

Custom Software That Works in the Real World

Soft Does Services

Clients and Projects

Better Teams // Better Software

Sketch Development Services Services

Sketch Development Services Reviews & Testimonials

AI-Driven Software Innovation & Digital Transformation

Sthenos Technologies Services

Latest Trends Related to Performance Testing