Wordsmiths – a word that means absolute confidence in your company's products?

Still no?

Chavtastic?

cacodoxy

Caloyers

Compurgator

Corrugant

Cotquean

Crucigerous

Cruentate

Cynosure

Catagmatick as in
‘I put on a catagmatick emplaster, and, by the use of a laced glove, scattered the pituitous swelling, and strengthened it.’

Charismatic

Was it Charlotte Church?

How could I have forgotten this?

If he has a child in Spain he must know it, poor chap.

Credulous?

Colin Hunt

Conceited?
Doctrinaire?
Complacent?
Incontrivertible?
Cachet?
Cockalorom?
Codswalluop?

Or something related to crede/credal.

Champion ( the wonderhorse)???

Canonical?

Charlie Drake?

To be honest, if the word you’re looking for is so obscure that no-one here can unearth it, it’s probably not worth using in the first place.

Oh, and ‘wordsmith’ is a particularly awful word used mostly in recruitment-speak by ad agencies and print publications run by mouldering ex-Fleet Street hacks 😉

Even if it wasn’t the original word, I still maintain that “evangelical” carries the meaning OP is after, in that context.

Charlie Dimmock?