Logo for main company and separate divisions

C'est ce que Main Group Logo - "Oakstone Construction Group"; each separate brand will have Oakstone + the division name recherchait dans leur logo design

We need logos for the main company (Group) and each separate brand. Our company is a construction company based in the UK. We would like to see designs that use the colours in the examples attached and have some link to oak (wood/tree / leaf) and stone (brick). The final designs should include "O". The styling is premium, modern and suitable for
residential and commercial sectors promoting heritage and reliability.

UPDATE 21/08/26: Have uploaded an additional image to brief. Please consider how a logo featuring oak rings may work? Looks a bit like a finger print representing our DNA in construction

UPDATE 22/08/26: have uploaded some other ideas looking at a completely different concept. Would also like to see logo ideas that stand out, have impact, say quality and trust Voir plus