How to integrate small acquisitions and still retain its brand uniqueness?

Companies look for smaller acquisitions to either gain access to technology, broaden its service offerings or for entry to new markets. Small firms agree to be acquired as they get access to capital to further grow and leverage acquirer brand and customer base to expand their footprint.

Should there be a different M&A integration playbooks as per deal size? What should be the target operating model to integrate smaller businesses yet not dilute their technology know-how and growth?