Even the most straightforward of modifications have some risks involved, and it often helps to get the assistance of someone experienced. We don’t currently provide a modding service, but we sure know some of the best modders and builders in the community. We’re happy to connect you with them.

 
Bob Mods USA
BobMods (Roberto Gualan): A sort of Game Boy Macro wizard, practicing his magic on wayward DS and DS Lites - giving them new life!
• Modifications: Yes
• Custom console sales: Yes

8bitaesthetics
8bitaesthetics is very active on Instagram, where you can see all of his builds, both for customers and for sale. They’re beautiful!
Facebook | Instagram | Website
• Modifications: Yes
• Custom console sales: Yes

linklooklisten
linklooklisten (Matt G): Avid modder with a penchant for mobile consoles, known simply as Matt G.
• Modifications: Yes
• Custom console sales: No

sjm4306
sjm4306 (Shawn Maxwell): Electrical engineer and retro enthusiast, helping the gaming community understand what's under the hood.
• Modifications: Yes
• Custom console sales: No

Perth Retro Gaming
Chris (@perth_retro_gaming on Instagram) of course does console modifications, and can also simply refurbish your console to get it back like-new.
• Modifications: Yes
• Custom console sales: No

Atomik Mods
Atomik Mods (Kain De Rivera): Passionate Chiptunes artist with a penchant for modding more than just gaming consoles.
• Modifications: Yes
• Custom console sales: No

Jellybelly Customs
Jellybelly Customs (Matt Whitehead): Custom console, parts, and accessories hand-crafted by owner Matt Whitehead.
• Modifications: Yes
• Custom console sales: Yes

Note
1) Hand Held Legend is solely acting as a free listing service to connect people and reputable businesses. Any transactions with, or work by, a business is solely between the individual and that business. Hand Held Legend is not responsible for any work performed.
2) Additional modders can be found on BennVenn’s forum.