Second-year scholars Callum Pritchard-Ellis, James Ballie, Callum Saunders, James Jones, Fraser Murdock and Perry Ng have all been offered senior deals.
Davis told BBC Radio Stoke: "We're delighted to have another strong group.
"Producing our own younger players is going to be more important. It only bodes well for the future of the club."
Additionally, three under-16s have also signed first-year scholar contracts.
Crewe's under-21s have enjoyed success again this season, reaching the Professional Development League Two final thanks to a 4-0 win against Cardiff on Wednesday.
Crewe will now play Queens Park Rangers in the final at Loftus Road.
"The secondary scholars have all been fairly strong," Davis added. "It took a lot of meetings to decide which of the players we would take.
"The future, at the moment, looks very healthy.
"It's harder to recruit players now, because of the demands of some of the players and the agents.
"Experienced players are more or less a 'no, no' for us, particularly names that people know. Financially, they're always out of our domain. Our own players can give us a better style of playing."

But archaeologist Steve Clarke believes this fortified farmhouse once stood on stilts on a manmade island in an Ice Age lake 4,900 years ago.
The "crannog's" timbers survived and carbon dating said they were built on Jordan Way, Monmouth, 2,917 years BC.
A slab of timber was discovered when the estate was constructed in 2003.
It is the second crannog discovered in Wales.
But the first, at Llangorse Lake, in the Brecon Beacons, is thousands of years younger than the recent discovery.
"This is very important, it was a huge lake that was here until the Iron Age," said Mr Clarke, 70.
"This will tell us what was happening here in the Stone Age - we know so little about that period."

4 May 2016 Last updated at 17:39 BST
The way players navigate the 3D levels in Sea Hero Quest will be anonymously tracked and sent to the researchers.
Understanding how people navigate 3D environments is important because the skill is often one of the first lost by people who have dementia.
Researchers say the game could generate an unprecedented amount of data.
Read the full story: Mobile game 'helps dementia research'
Crewe Alexandra manager Steve Davis says the future of the club looks very healthy as six academy graduates are offered professional contracts.
[NEXT_CONCEPT]
This ancient fort could not look more different to the red brick housing estate currently occupying suburbia in Monmouthshire.
[NEXT_CONCEPT]
Dementia researchers have developed a video game that could lead to the development of early diagnostic tests for the disease.