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List of high-quality screw manufacturers

THIS IS A WORK IN PROGRESS
In this page, I will be gathering a list of screw manufacturers for critical bolted unions, mostly socket-head cap screws. Preferably available wholesale and not only through custom orders. Preferably certified EN9100 since it seems the 2 aerospace industries (aircraft+spacecraft) are the only industries that are really serious about PA/QA and traceability.

Bufab/Bulten	Bumax brand, not 9100, EN9120 for distribution, made in Sweden
Holo-Krome	owned by Fastenal,not 9100, made in the USA
Unbrako	Formerly US-based, sold-off now HQ and manufacturing based in India) link at Eng-tips
LLS Screws	EN9100, Titanium and specialty alloys only, Italy
Misc, batch and custom orders:
LLS Screws	EN9100, Italy
Smith Bullough	not EN9100, made in the UK
Aerospace:
Saturn Fastener	EN9100 for manufacturing, made in USA(TBC), Nadcap
Rabourdin	EN 9100, manufacturing in Paris France, std and custom orders
AHG	EN 9100/Nadcap, manufactured in Toulouse France, std and custom orders
Spacecraft specific:
Yohann Maier	EN9100, batch and custom orders, Germany