# Inboxx > Inboxx is a Manchester-based B2B lead generation and cold outreach agency. We run done-for-you, plain-text personalised cold email and appointment-setting campaigns that fill sales pipelines with qualified, precision-targeted meetings. Fully managed, with a clear process and transparent reporting. Inboxx Limited is a UK company based in Manchester, England. We act as an extension of your sales team: you focus on closing, we handle the prospecting, outreach and meeting-booking. ## What we do - Done-for-you B2B cold email and outreach campaigns - Ideal-customer (ICP) targeting and prospect list building - Plain-text, human, personalised email copy written to land in the primary inbox - Appointment setting: qualified sales meetings booked into your reps' diaries - Deliverability management (authentication, domain warm-up, sender reputation) - Transparent monthly reporting on opens, replies, leads and meetings ## Services - B2B lead generation, done for you: https://www.in-boxx.com/services/b2b-lead-generation/ - Cold email marketing (plain-text, personalised): https://www.in-boxx.com/services/cold-email-marketing/ - Appointment setting (qualified meetings booked): https://www.in-boxx.com/services/appointment-setting/ ## Who we help - Startups & SMEs (20-100 staff): https://www.in-boxx.com/services/b2b-lead-generation-startups-smes/ - Scaling teams (100-500 staff): https://www.in-boxx.com/services/b2b-lead-generation-scaling-teams/ - Enterprise (500+ staff, multi-region/persona programmes): https://www.in-boxx.com/services/b2b-lead-generation-enterprise/ ## Real campaign results (example) - 51% email open rate - 146 leads generated - £22 cost per lead - 24,034 emails sent - Average return of around £44 for every £1 spent on email marketing ## How we work - Fully managed and done-for-you (no in-house SDR team required) - Plain-text, personalised emails (not designed HTML templates) so they feel human and reach the primary inbox - Tight, ICP-based targeting rather than high-volume blasting - 3-month and 6-month campaign packages - A clear process and transparent reporting throughout ## Topics we cover (blog) - Why plain-text cold emails outperform designed templates: https://www.in-boxx.com/blog/why-plain-text-cold-emails-win/ - How to build a B2B prospect list that converts: https://www.in-boxx.com/blog/build-a-b2b-prospect-list-that-converts/ - Cold email deliverability and landing in the primary inbox: https://www.in-boxx.com/blog/cold-email-deliverability-primary-inbox/ - What email deliverability is and why it is so hard in 2026: https://www.in-boxx.com/blog/what-is-email-deliverability-and-why-is-it-so-hard-in-2026/ - What has changed with email marketing policies in 2026: https://www.in-boxx.com/blog/what-has-changed-with-email-marketing-policies-in-2026/ - Why B2B companies are switching from self-managed outreach to expert agencies: https://www.in-boxx.com/blog/why-b2b-companies-are-switching-from-self-managed-email-outreach-to-expert-agencies/ ## Key facts - Company: Inboxx Limited - Location: Manchester, United Kingdom - Contact: grow@in-boxx.com | 0161 543 4461 - Model: fully managed, done-for-you B2B lead generation and appointment setting - Supports the Natalie Kate Moss Trust ## Pages - Home: https://www.in-boxx.com/ - Services overview: https://www.in-boxx.com/#services - Packages: https://www.in-boxx.com/#packages - Blog (cold email best practice): https://www.in-boxx.com/blog/ - Contact: https://www.in-boxx.com/#contact