
Jack Warren
Founder of PineRiverData. HubSpot consultant, based in London.
I help B2B companies of £2-15m ARR find where leads and revenue leak out of HubSpot, and fix it. I work with Heads of Marketing and Sales who need one set of numbers they can both defend.
I'm a consultant, not an agency. I take one build at a time.
Work I've done
- Moved a 400-person B2B SaaS company from Pardot to HubSpot: around 300k contacts, 30k companies and 10k deals, with Salesforce running throughout. Their CMO said: “Wow, in all my 25 years in marketing I've never seen such a smoothly run migration and not only that it was delivered early too!”
- Rebuilt routing, scoring and enrichment over 12 weeks. MQL to SQL conversion went from under 4% to about 33%.
- Took usable contacts from 17% to 89% in about three months, which made properly segmented email possible. Open pipeline from email marketing then reached $3m (USD) in six months, roughly four times the previous quarterly average.
- Found 133 enterprise prospects who had asked to speak to sales and never got an opportunity, then fixed the handoff so it couldn't happen again.
- Built a bespoke HubSpot app that turned a five-hour weekly task into under ten minutes, and set up real-time webinar follow-up so leads heard back in minutes, not days.