James Connelly, Built, exited, building again → Board Advisor. CEO @ Charlie Oscar. We bring marketing science to modern marketing, growing brands at scale.

Built, exited, building again → Board Advisor. CEO @ Charlie Oscar. We bring marketing science to modern marketing, growing brands at scale.

  • Charlie Oscar
  • Marketing & Advertising
  • United Kingdom
Rank
#679of 18,993
  • 9.4K followers
  • 28 posts / 60d
  • 0.4% avg engagement
  • 179 follower growth / 30d

James Connelly ranks #679 of 18,993 creators on the LinkedIn Ranking, working in Marketing & Advertising and based in United Kingdom. They have 9.4K followers and published 28 posts in the last 60 days at a 0.4% average engagement rate.

The roast

James Connelly runs an agency called Charlie Oscar, which is exactly the kind of name a mid-life crisis gives to a boat it’s too afraid to sail. He claims to bring marketing science to his clients, yet manages a 0.75% engagement rate, the statistical equivalent of a flyer stuck to a pole.

About James

I founded my first agency from my kitchen table in 2009. I exited to Dentsu in 2018. Now I’m building again with Charlie Oscar - with a world-class team and the benefit of experience. I write about: - Marketing effectiveness (what drives growth vs what just looks good in a report) - AI (what’s changing - and what brands need to do about it) - Business + personal growth (the messy stuff people avoid talking about) When I’m not in our London office, I’m usually in the gym or on a golf course. If you're into any of the above, let’s connect. www.charlieoscar.com

Highlights

  • Top 5% Creator

    : 28 posts in 30 days

  • Top 10% in United Kingdom

    : Ranked #95 of 1840 creators

  • Top 10% in Marketing & Advertising

    : Ranked #90 of 1092 creators

  • Top 25% Audience

    : 9,360 followers

Recent posts

  • Full circle moment. Meet Henry. Our 9 year old Cocker Spaniel. 5 years ago, in search to find Henry the best possible diet for a long, happy and healthy life, we found Different Dog. Henry loved the food so much, and I loved the unit economics, we invested. Ever since, we rolled up our sleeves and partnered with the wonderful founders Charlie Thurstan and Alexandra Thurstan to help them deliver their mission of Changing Dogs lives with real food. The business is 4x bigger now with huge ambitions. But most excitingly, Henry got his big break in a social media campaign, created by my agency

    29 reactions · 5 comments · 0 reposts

  • Inference. It's a word I first learned of and understood in the context of AI. It was at a CMO roundtable with Alex Schultz, then the CMO of Meta and now their Chief Data Officer. One of his big priorities and concerns was inference. I hadn't even heard of it and was sat there thinking, this is a bit embarrassing 😅 If you don't know what it is either, the short version is this: The more people use AI, the slower it's going to get. The speed, the usage and the volume all depend on the capacity. Capacity in power, chips, infrastructure and so on. If you remember when everyone was on the int

    8 reactions · 0 comments · 0 reposts

  • I've been in influencer marketing since 2016, and the thing that's surprised me most is how long it took Meta to take their slice. They've taken it now, and I don't think that was an accident. The trade used to be obvious. A brand moved budget out of paid media into influencers and got a better return from the organic reach than the ads could deliver. That money was coming out of Meta and going to people posting on Meta for nothing. Then the algorithm changed. Commercial content from influencers doesn't get the same organic reach, so it has to be supplemented with partnership ads. Meanwhile

    25 reactions · 0 comments · 0 reposts

Last updated 2026-08-01