Big Business Agency

Big Business Agency is a boutique B2B sales consulting and lead generation firm based in Belfast, Northern Ireland. The agency positions itself as a full-lifecycle partner for complex B2B organisations, combining senior-level sales strategy with hands-on HubSpot implementation, omnichannel advertising, and workflow automation. Rather than offering a standard SDR-as-a-service model, Big Business Agency focuses on designing and executing custom go-to-market programmes that integrate CRM, CPQ, customer portals, and paid media into a single, measurable system.

The agency's key differentiator is its ability to own the entire lead-to-revenue lifecycle. Most lead generation firms stop at appointment setting or top-of-funnel activity, but Big Business Agency also handles HubSpot CRM migrations, quote-to-cash automation, B2B eCommerce portal deployment, and customer service workflow design. This end-to-end scope reduces vendor fragmentation and gives clients a single point of accountability for pipeline performance. The team's deep HubSpot expertise, including integrations with major ERPs via Commercient, allows them to build full-funnel visibility from lead capture through fulfilment.

Pricing is custom-scoped per engagement, with typical minimum project sizes in the $5,000-$10,000+ range. There are no published seat rates or packaged SDR plans, which reflects the consulting-heavy nature of the work. This model works well for companies that need strategic guidance and systems integration alongside lead generation, but it may feel expensive or over-engineered for businesses that simply want a low-cost outsourced SDR team. The agency's small team (roughly 2-10 employees) means clients get direct access to senior consultants, but also limits capacity for very large, multi-region rollouts.

Big Business Agency is best suited for mid-market and enterprise B2B firms in manufacturing, testing/inspection/certification (TIC), technology, and professional services. These sectors often have complex sales cycles, long deal times, and a need for CRM and CPQ integration - exactly the areas where the agency excels. Companies already standardised on HubSpot or planning a migration will find the most value, while those using alternative CRM stacks or operating in pure B2C models may see less direct fit.

The agency's strengths lie in its strategic grounding and hands-on delivery. The founder's background in enterprise software leadership and PRINCE2-style project management gives engagements a rigour that many smaller agencies lack. Clients consistently praise the team's responsiveness, collaborative style, and ability to simplify complex workflows into actionable playbooks. The main drawback is the limited volume of public reviews, which makes it harder to benchmark against larger competitors like CIENCE or Belkins.

Overall, Big Business Agency is a strong choice for B2B organisations that need more than just leads - they need a partner to redesign their sales technology stack, align marketing and sales processes, and run targeted omnichannel campaigns. For companies ready to invest in a consulting-led approach and standardise on HubSpot, this agency delivers a rare combination of strategic depth and technical execution.