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Great teams build great software. We build both.

Test Double is a software agency offering consulting services in custom software development, legacy modernization, product performance turn around, DevOps scaling, Ruby and Rails upgrades, and "team-in-a-box" product delivery.

  • Min project size
    $25,000+
  • Hourly rate
    $150 - $199 / hr
  • Employees
    50 - 249
  • Locations
    Claymont, DE
  • Year founded
    Founded 2011
  • Languages
  • Timezones

1 Language that we service

  • English

4 Timezones that we service

CST
Central Standard Time (CST)
EST
Eastern Standard Time (EST)
MST
Mountain Standard Time (MST)
PST
Pacific Standard Time (PST)

1 Locations

  • Claymont , DE

Select Focus Area
Application Platforms
Amazon Application Development Framework
70%
Heroku
20%
Azure Platform
10%
AI Technologies & Models
Anthropic
60%
Open AI GPT-3
40%
AWS Consulting Services
AWS DevOps
70%
AWS Security
30%
Azure Consulting Services
Azure DevOps
90%
Azure Security
10%
Programming & Scripting
Ruby
38%
Typescript
6%
Go
5%
HTML5
5%
Python
5%
C#
2%
ASP
1%
C
1%
Industries
Automotive
20%
Education
20%
Energy & natural resources
20%
Other industries
20%
Retail
20%
Clients
Midmarket ($10M - $1B)
40%
Small Business (<$10M)
40%
Enterprise (>$1B)
20%
Certified in:
Custom Software Development Ruby on Rails

Pricing Snapshot

Min. project size $25,000+
Avg. hourly rate $150 - $199 /hr
Rating for cost 4.3 /5

What Clients Have Said

Test Double's pricing ranges from $200,000 to over $1 million per project, indicating a premium service. Clients value the expertise and quick integration of their teams, though some express a desire for lower costs. They consistently deliver high-quality results on time and under budget.

This summary is based on verified Clutch reviews.

Most Common Project Size

$200,000 - $999,999 based on 3 reviews
< $49,999 $50,000 - $199,999 $200,000 - $999,999 > $1,000,000

Select a service to see pricing information

Test Double Review Insights

Overall Review Rating

4.8
  • Quality 4.8
  • Schedule 4.8
  • Cost 4.3
  • Willing to Refer 5.0

Top Mentions

Review Highlights

  • High-Impact Consulting Services

    Beyond staff augmentation, Test Double offers strategic consulting, introducing new techniques and practices that enhance client teams' capabilities. Their focus on collaboration and strategic outcomes is a key differentiator.

  • Proficiency with Legacy Systems

    Test Double is one of the few companies willing to work with and improve legacy systems. Their ability to handle technical debt and modernize outdated technology is appreciated by clients.

  • Strong Project Management

    Test Double is recognized for their strong project management skills, consistently meeting deadlines and staying within budget. Their use of Agile methodologies and tools like Jira and Pivotal Tracker contributes to successful project execution.

  • Proactive Communication and Collaboration

    Test Double maintains effective communication through various channels, such as Slack, Zoom, and email. Their proactive collaboration with clients ensures alignment and successful project outcomes.

  • High Cost of Services

    While clients are impressed with the quality and expertise provided by Test Double, some note that their services can be expensive. Potential clients should be clear about project scope and budget expectations.

  • Adaptable and Flexible Approach

    Clients appreciate Test Double's flexibility and willingness to adapt to their processes and tools. This adaptability allows for seamless integration with different company cultures and working styles.

Test Double Reviews

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Development & Project Management Staff Aug for Logistics Co

  • Custom Software Development IT Staff Augmentation
  • $200,000 to $999,999
  • Dec. 2023 - Ongoing
4.5
Quality
5.0
Schedule
4.5
Cost
4.0
Willing to Refer
5.0

"The most impressive thing about Test Double is the caliber of people they've supplied."

Nov 7, 2025
SVP of Engineering, Vantage Point Logistics
Dave Keene
Verified
  • Supply Chain, Logistics, and Transport
  • United States
  • 51-200 Employees
  • Phone Interview
  • Verified

Test Double provides staff augmentation services for a logistics company. The team handles product management and feature development, identifying areas for improvement and migrating customers to a new system.

Custom Software Development for Manufacturing Company

  • Custom Software Development
  • Ruby on Rails SQL
  • $1,000,000 to $9,999,999
  • Feb. - Dec. 2017
5.0
Quality
5.0
Schedule
5.0
Cost
4.0
Willing to Refer
5.0

"Test Double was very good at what we asked them to do."

Aug 21, 2025
CTO , Manufacturing Company
Fred Lee
Verified
  • Manufacturing
  • Illinois, United States
  • Phone Interview
  • Verified

Test Double provided senior-level consulting for a manufacturing company. The team worked on a Rails e-commerce website with a PostgreSQL database and Elasticsearch and implemented the design.

Engineering Resources for Software Company

  • Custom Software Development
  • Ruby on Rails Ruby
  • Confidential
  • Oct. 2018 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

“Test Double stands out because their engineering contractors are among the best engineers out there.”

Jul 25, 2025
CTO, Software Company
Anonymous
Verified
  • Other industries
  • San Francisco, California
  • 1,001-5,000 Employees
  • Online Review
  • Verified

Test Double has been a long-term partner of a software company, helping them evolve their engineering culture and scale their systems. Their work includes upgrading the client's Rails codebase.

Dev Staff Aug & Consulting for Electrical Services Company

  • Business Consulting Custom Software Development IT Staff Augmentation
  • Strategy Development Consulting Ruby on Rails
  • $200,000 to $999,999
  • July 2010 - Aug. 2011
5.0
Quality
5.0
Schedule
4.0
Cost
4.0
Willing to Refer
5.0

"The quality of their work exceeded my expectations."

Jul 24, 2025
Former CTO, Comverge
Mike Ratliff
Verified
  • Energy & natural resources
  • Denver, Colorado
  • 51-200 Employees
  • Phone Interview
  • Verified

Test Double provided staff augmentation and consulting services for an electrical services company. The team, composed of senior software engineers, was responsible for introducing new techniques and practices.

Full Stack Ruby on Rails Dev for Media Agency Outsourcing

  • Web Development
  • Ruby on Rails JavaScript
  • Confidential
  • Oct. 2017 - May 2018
4.0
Quality
4.0
Schedule
5.0
Cost
4.0
Willing to Refer
5.0

"We could always count on them being there."

Oct 2, 2018
SVP of Engineering, Orange Barrel Media
Alan Gilbert
Verified
  • Advertising & marketing
  • Columbus, Ohio
  • 11-50 Employees
  • Phone Interview
  • Verified

Test Double provided staff augmentation to bring structure and expertise to an internal team working on a full-stack SaaS product. They were specifically involved with Ruby on Rails development.

Showing 1-6 of 6 Reviews

Our Story

Great software is made by great teams. We build both.

Businesses sink billions of dollars into apps and products that barely work, are a pain to deal with, and cost too much. We build software that delivers on promised value, is a joy to use, and isn't painful to change and scale.

What Sets Us Apart

Our consultants are empathetic systems thinkers

Our software consultants have an average 15 years experience and product consultants have an average 12 years experience, alongside stellar communication and collaboration skills. They embed as remote additions to your team, deliver early and often, pressure test systems, and solve hard problems.

We solve root causes, not surface level symptoms

Too many companies discover waste from surface level fixes that never unlock business value. We uncover root causes to focus improvements and help your team get traction. So you get more value faster—and more maintainable software.

We do both strategy and execution for big impact

Our cross-cutting software consultants embed to get stuff done from strategy to execution. They onboard so freaky fast because they draw on experience across tons of business domains and situations. All focused on driving business outcomes that matter to you, your team, and your org.

Premier Verified means Clutch independently confirmed Test Double is a legally registered business,
financially sound (Creditsafe: Very Low Risk), and backed by 5 verified client reviews averaging 4.8 stars.

Learn More
Verified Client Reviews
5
Overall Review Rating
4.8
Source
Clutch
Last Updated
August 19, 2026

Business Entity

Business Entity Name Test Double, Inc.
Source Ohio Secretary of State
Jurisdiction of Formation Ohio
Date of Formation October 26, 2011
Status Active
Last Updated January 30, 2025
ID 2057691

Credit Report Results

International Credit Risk Assessment Very Low Risk
Source Creditsafe
Last Updated January 30, 2025
Learn More About The Clutch Verification Process

Locations (1)

2093 Philadelphia Pike ClaymontDE, United States 19703

101 - 150

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Automat Studio

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Milan Antanasijević

Traingent

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Rikky Singh

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