Boutique Marketing & Social Media Services in Cambridge

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We bring tailored social media, PR, content, and brand strategies to Cambridge businesses ready to elevate their presence and leave a lasting impression. With deep roots in the community, having grown up here through intermediate and college years, our connection to Cambridge is personal. It’s a place that shaped us, and we're proud to now call it home again today.

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Why Partner With O’Sullivans in Cambridge?

Having grown up here and attended both intermediate and college at St Peter’s Cambridge, we know the local business scene inside out. Cambridge is a place where boutique shops, creative makers, and innovative thinkers thrive - and we love being part of it.

Our strategies are never cookie-cutter. We take the time to understand your unique voice, values, and goals, designing a bespoke approach that feels as genuine and considered as the community you serve.

And yes - we’re local too, so we get it!

What We Do

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What They Said…

O’Sullivans have been incredible to work with. They’re on point and really know their stuff. Highly recommend.

— MRTY

We have experienced a 45% increase in wedding and event bookings since working with O’Sullivans. We have done no other forms of marketing.

— The Red Barn