Written by Akif Bulent Keskin, Founder & CEO of Monarch Defender. Updated June 21, 2026.
The short answer
How they differ
Monarch Defender and Helderburg both build custom Defenders in the United States, but they appeal to different buyers. Monarch focuses on ground-up bespoke commissions with modern GM V8 power. Helderburg, based in Sharon Springs, New York, is known for heritage-oriented builds that preserve more of a Defender's original character, often with 3,000 or more hours of craftsmanship per car.
Where Monarch is the stronger fit
Monarch suits a buyer who wants a modern, V8-powered bespoke Defender built new in the United States, with build documentation and a 12-month warranty. Specification is fully open, and a current Defender can be applied as trade-in credit.
Where a heritage builder may fit better
A buyer who prioritizes originality and period character over modern V8 performance may prefer a heritage-focused shop. There is no wrong choice here, only a different priority.
| Monarch Defender | Helderburg | |
|---|---|---|
| Build location | United States (IL) | Sharon Springs, NY, USA |
| Approach | Ground-up bespoke, single-owner commission | Heritage restoration, one-of-one |
| Powertrain | Modern GM LS3 (430 hp) / LT1 (460 hp) V8 | Range of options, originality preserved |
| Price (approx.) | ~$250k–350k+ | ~$245k–480k+ |
Monarch Defender vs Helderburg. Approximate, as of June 2026; see each builder's site for current figures.
Frequently Asked Questions
What is the difference between Monarch Defender and Helderburg?
Monarch Defender builds ground-up bespoke Defenders with modern GM V8 power in the United States. Helderburg is known for heritage-oriented builds that often keep more original character. The right choice depends on whether you want a modern V8 bespoke build or heritage character.
Looking for an alternative to Helderburg?
If you want modern GM V8 performance in a ground-up bespoke build rather than a heritage restoration, Monarch Defender is a US-built alternative with the LS3 and LT1 V8 and a 12-month warranty.
Keep reading
Commission your Defender
Every Monarch is a bespoke, ground-up build. Talk to our team about your specification.