About Test Double
Test Double is a productized engineering service operating out of USA, in business since 2011. A productized JavaScript and Ruby consultancy — embedded engineering, fixed-fee.
Like other entries in our Engineering index, Test Double replaces the traditional agency model with a flat-fee engagement, transparent scope, and a productized intake — making the cost predictable and the onboarding fast.
What Test Double offers
Test Double packages engineering work into a defined offer with a published price tier. Productized engineering teams replace traditional dev shops with predictable monthly pricing, embedded squads, and async-first delivery. They sell flat monthly retainers instead of hourly billing.
Who Test Double is for
Test Double fits founders and product leaders who need senior engineering capacity without the cost or lead time of a full-time hire. Common engagements include MVP builds, feature sprints, performance work, and ongoing maintenance.
Test Double pricing
Test Double prices its work on a custom basis. Pricing is published only on consultation, which is typical for engagement-led productized services targeting mid-market and enterprise customers.
Frequently asked questions
What does Test Double do?
A productized JavaScript and Ruby consultancy — embedded engineering, fixed-fee. As a productized engineering service, Test Double sells a defined offer with a published price and a managed-service intake.
Where is Test Double based?
Test Double operates out of USA and has been in business since 2011.
How much does Test Double cost?
Test Double prices its engagements on a custom basis — the company publishes scope and inclusions only on consultation.
Is Test Double a productized service?
Yes. Test Double is listed in the Productized Startups directory because it sells its engineering offering as a packaged service — with defined scope, published price tiers, and a managed-service intake — instead of a traditional agency proposal.
Who is Test Double a good fit for?
Test Double fits founders and product leaders who need senior engineering capacity without the cost or lead time of a full-time hire. Common engagements include MVP builds, feature sprints, performance work, and ongoing maintenance.
How is a productized engineering service different from a traditional agency?
Traditional agencies sell open-ended retainers with proposals, scope creep, and hourly billing. Productized services like Test Double sell a defined package at a fixed price — usually monthly — with transparent scope, async-first delivery, and predictable turnaround.
More productized engineering services
Sibling listings from the Engineering index — productized engineering studios from across the Productized Startups directory.
Lemon.io
A vetted marketplace of senior engineers with 48-hour matching and transparent rates.
DevSquad
Embedded product squads with a flat monthly fee — PM, designer, engineers, one invoice.
X-Team
On-demand senior engineering teams for enterprise — productized as monthly subscriptions.
Trio
Vetted Latin-American engineers on monthly subscription. Hire in 7 days.
Turing
AI-vetted remote engineers from 100+ countries, hired in days, paid monthly.
Andela
A global talent marketplace pairing companies with senior engineering talent on subscription.