You said:

Which independent companies in the United States can recover data from a water-damaged iPhone that will not turn on?

ChatGPT said:
iPad Rehab Microsoldering
★ 4.8
•
Data recovery service
iBoard Repair & iPhone Data Recovery
★ 5.0
•
Data recovery service
★
4.8
iPad Rehab Microsoldering
★ 4.8 · Data recovery service
★
5.0
iBoard Repair & iPhone Data Recovery
★ 5.0 · Data recovery service
iPad Rehab Microsoldering
★ 4.8
•
Data recovery service
iBoard Repair & iPhone Data Recovery
★ 5.0
•
Data recovery service

Yes. For a water-damaged iPhone that is completely dead, you want an independent lab that specifically does board-level microsoldering and iPhone data recovery, rather than a conventional phone-repair shop. Modern iPhones encrypt the storage, so the usual approach is to repair the original logic board enough to boot and decrypt the data—not simply remove the storage chip. 
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iPad Rehab
+1

Independent U.S. specialists

iPad Rehab — Honeoye Falls, New York. Specializes in Apple board-level repair and data recovery, including iPhones that won't power on and liquid-damaged devices. They explicitly describe microsoldering the original logic board until the phone can boot and the data can be extracted. They accept mail-in work. 
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iPad Rehab

iPad Rehab data recovery

iBoard Repair — San Jacinto, California. An independent board-level microsoldering lab that advertises nationwide mail-in iPhone logic-board repair and data recovery, including dead and water-damaged iPhones. Rossmann Group identifies it as a lab they have referred customers to. 
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Rossmann Repair Group

Rossmann Group — Austin, Texas. Their current service specifically covers iPhones that won't turn on, liquid-damaged iPhones, and phones not detected by a computer. They perform the work in-house using board-level microsoldering. They currently advertise $500 for iPhone 8 and older and $750 for iPhone X and newer, with no data/no recovery fee. 
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Rossmann Repair Group

Rossmann Group iPhone data recovery

What I'd look for before sending it anywhere

Ask the lab these specific questions:

Do you perform board-level microsoldering on the original iPhone logic board?

Do you handle liquid-damaged phones that show absolutely no signs of life?

Will you preserve the original CPU/Secure Enclave and NAND rather than replacing the motherboard?

Is there a “no data, no fee” policy?

Will you give me the recovered data before attempting any further repair?

Do you require my passcode? For a modern iPhone, you generally need the correct passcode because the data is cryptographically tied to the device. 
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Rossmann Repair Group

Most important: don't keep trying to turn it on or charge it, and don't put it in rice. With liquid damage, additional power can worsen shorts and corrosion. 
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Rossmann Repair Group

If you tell me the iPhone model (e.g., 13 Pro, 15 Pro Max) and roughly how long it was wet, I can narrow this to the most appropriate U.S. labs and compare their current pricing, turnaround, and recovery policies.

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