Amit Kapoor
Chief Executive Officer
@ First Line Technology
We weren’t just a project to them. Even now, they catch up and ask how the app is running, and not from a sales standpoint. They really care about our end-users.…
- 100% US-based engineers
- Claude Select Services Partner
From legacy to
AI-first software.
A senior US engineering partner that modernizes old systems, builds products, and puts AI to work across your business.
Our Solutions
Gnar builds the software your business runs on.
Application Modernization
ERP and order-management modernization, built alongside the ERP you keep, plus codebase audits, rebuilds and migrations, starting with a free read of your existing code.
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AI Transformation
Strategy and workshops, workflow automation, custom agents, enterprise AI integration and forward deployed engineers, from a Claude Select Services Partner.
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Product Engineering
Strategy, design, web, mobile, integrations and AI features, built by senior US engineers at a fixed milestone price.
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The triple guarantee
The Only Firm To Offer A Triple Guarantee
Guaranteed Price
The number we quote is the number you pay. Any overage is on us.
Guaranteed Outcome
The software works the way we agreed, or we fix it.
12-Month Warranty
For 12 months after launch, we fix any code that doesn't work the way we agreed, at no charge.
4.8/5 on Clutch
From 20 verified client reviews.
Claude Select Services Partner
Part of Anthropic's Claude Partner Network.
10+ years of client work
Shipped and live for WHOOP
$50M+ in product development for teams from Boston to San Francisco, all by senior US engineers.
100+
projects shipped
Map of the United States. Sand dots mark the headquarters of 126 Gnar clients, including Fitbit (San Francisco), University of California Natural Reserve System (Oakland), AARP Foundation (Washington), Wealth Kitchen (Chicago), Predictive Sports Science (Odds-R) (Louisville), Tap Inspect (Louisville), Alden Scientific (Cambridge), Conformis (Billerica), ezCater (Boston), General Insulation Company (Medford), Gridly (Boston), GrubHub (Boston), Investment Management Support Solutions (Data-Centrix) (Hudson), Katalyst (KatalystOS) (Raynham), Kolide (Somerville), Mass General Brigham (Somerville), Mass. Dept. of Early Education and Care (Boston), Mass. Dept. of Public Utilities (Boston), Mass. Disabled Persons Protection Commission (now CPPD) (Braintree), MBTA (Boston), OnePak (Westfield), Qeepsake (Newton), Salsify (Boston), Shepherdly (Boston), SystemOne (Northampton), TORQ Interface (Boston), Valor Performance (Boston), WHOOP (Boston), Johns Hopkins University (Daily24 study app) (Baltimore), Candlebuilders (Newfields), Tahoe Sierra Clean Air Coalition (Tahoe evacuation app) (Incline Village), Ollie (New York), Optimizely (New York), Laborocity (Radnor), First Line Technology (Fredericksburg), Trusted Advisor Associates (Arlington), Sparkle Stories (Monkton), Vermont Mutual (Montpelier), plus 88 more from Gnar's client records.
Client spotlight
Built by Gnar. Used by 700,000+ families.
User Growth
“After seeing 20x growth in our user base and meaningful revenue, we’ve seen Qeepsake mature from a product into a thriving business, a huge leap forward.”
Jeff McNeil,
CEO, Qeepsake
Figures as published on thegnar.com: 20x user-base growth, a Shark Tank deal, and over 50 million memories saved for more than 700,000 families.
A fixed price before we build
Find out what we’d build first
Tell us where you are and what you’re trying to do. After discovery you get the build plan and a fixed build price, with the Triple Guarantee in writing.
INDUSTRIES
Built where the work gets complex
Every card opens the case study behind it.
Security
We built Kolide’s secure device management for enterprise IT.
Insurance
Embedded engineers on Vermont Mutual’s quote platform.
Healthcare
Diagnostic test results and a mobile app for on-the-go surgeons.
Fitness
We built WHOOP’s engine for third-party integrations.
Logistics
Reverse logistics and labor marketplaces: we built the front ends they run on.
E-commerce
Product data at Salsify, print-on-demand at Candlebuilders.
Public Sector
AARP Foundation and two Massachusetts agencies: policy turned into software.
Consumer Apps
Qeepsake grew 20x and landed a Shark Tank deal on the app we built.
In their words
Hear it from our clients
James WongDirector of Product Management
@ Vermont Mutual
…They've been able to integrate with our team. We don't view them as a third-party at all.
Noelle MykolenkoCEO
@ Trusted Advisor Associates
I always felt like they cared about us and our success more than just completing the work.
WoodyCEO Co-Founder/COO
@ Laborocity
After a few meetings with the founding team, I was confident they would deliver on what they promised and they did.
Co-founderHome inspection software
@ Tap Inspect
Their Ruby on Rails engineer was able to jump right into our productivity tools and go.
Jeff McNeilChief Executive Officer
@ Qeepsake
After seeing 20x growth in our user base and meaningful revenue, we've seen Qeepsake mature from a product into a thriving business, a huge leap forward.
Our proven process
Context Driven Development
Context Driven Development
Four steps from the first conversation to software your business can run on.
Define: discovery, the build plan and a fixed price.
Prototype: a working prototype you approve before we build.
Build: production-ready code.
Verify: tested and accepted by you, then maintained after launch.
Triple Guarantee on every fixed-price build: price holds · works as agreed · 12‑month warranty
FAQ
Frequently Asked Questions
How does The Gnar handle pricing?
We price by milestone, and the price is fixed before we start. The triple guarantee means the price holds, the outcome is guaranteed, and the build carries a 12-month bug-free warranty. The one exception is Embed, our staff augmentation model, which is billed time and materials because we are reinforcing your team rather than running the project.
What makes The Gnar different from other software partners?
Three things. AI-Native delivery, so the same scope ships faster and at a lower price. A 100% US-based senior team with a founder in every engagement. And the industry's only triple guarantee: fixed price, guaranteed outcome, and a 12-month bug-free warranty. Most agencies offer none of the three.
What does The Gnar do?
We help B2B leaders in three ways: AI Strategy & Fluency (adopt AI and ship a real automation), Custom Software Development (build the software your business runs on), and Legacy Software Modernization (modernize or rebuild an aging system). Every build is backed by the triple guarantee.
How long does it typically take to build software?
It depends on scope, but AI-Native delivery compresses the timeline. Work that takes a traditional shop six months often ships in three to four with us. We give you a milestone plan with real dates before the build starts.
How does The Gnar's Bug-Free Warranty work?
For a full year after release, we repair any non-conforming code at no charge. The warranty is possible because our engineering practice is rigorous enough to stand behind it. It covers code that doesn't work as specified; feature additions and ongoing support are handled through our maintenance offering.
Can The Gnar integrate with our existing team?
Yes. That's Embed, our staff augmentation model. Senior US engineers work as an extension of your team when you need velocity or a specific skill set. Embed is billed time and materials and is the one engagement that does not carry the triple guarantee.
What happens after launch?
The codebase is yours, documented for hand-off, and covered by the 12-month warranty. You can transition to your internal team with our support, or keep us on through Maintain, our optional monthly support retainer.
Let’s Talk
Contact Us
Tell us what you’re trying to build or fix. That first conversation is step 1 of the process, Define.
