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SDR & Lead Gen Services

Big Business Agency

Digitising and unifying operations from Sale to Service

Custom pricing
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Big Business Agency is a Belfast-based B2B sales consulting and lead generation agency that uses HubSpot-centric technology, omnichannel advertising and workflow automation to build predictable, high-intent pipeline for complex B2B organisations.

Pricing
Custom pricing
Best for
B2B manufacturing, TIC, technology and professional services businesses that want a senior, consulting-led partner to design and run omnichannel lead generation while also fixing the underlying HubSpot CRM and quote-to-cash stack.
Platforms
Web
Free trial
No
Free plan
No
Headquarters
Belfast, Northern Ireland, United Kingdom
Company type
Private
The honest take

What reviewers love, and what to watch

A balanced view of Big Business Agency, drawn from public reviews and product research.

Pros

  • Deep HubSpot CRM implementation expertise, including complex migrations from Salesforce and tailoring HubSpot to each clientu2019s processes.
  • Strong project management and governance heritage that keeps implementations on time, on budget and aligned to PRINCE2-style delivery standards.
  • Ability to simplify complex B2B sales and quote-to-cash workflows into clear frameworks and playbooks that teams can adopt quickly.
  • High-touch, collaborative engagement styleu2014clients highlight the team as knowledgeable, fun to work with and highly responsive when issues arise.
  • Proven results for mid-market and enterprise B2B firms in TIC, manufacturing and technology, including Fortune 500/1000 brands.
  • Unique combination of sales consulting, advertising services and systems integration, allowing one partner to own the full lead-to-revenue lifecycle.

Cons

  • Very limited volume of public third-party reviews (a small number across Google and HubSpot Marketplace), making statistical benchmarking against larger agencies difficult.
  • Small specialist team (roughly 2u201310 employees), which may constrain capacity for very large, multi-region rollouts or high SDR headcount without partnering.
  • Best suited to organisations standardising on HubSpot and compatible ERPs; companies heavily invested in alternative CRM stacks or pure B2C models may see less direct fit.
Where it fits

What teams use Big Business Agency for

  • B2B lead generation and SDR enablement
  • Account-based marketing and pipeline acceleration
  • HubSpot CRM implementation and migration
  • Quote-to-cash automation and CPQ
  • B2B eCommerce and customer portal deployment

Key strengths

  • Strong strategic sales and GTM expertise grounded in the founder's enterprise software leadership and consulting background.
  • End-to-end capability across paid media, SDR enablement, CRM, CPQ, customer portals and eCommerce, reducing vendor fragmentation.
  • Proven ability to integrate HubSpot with major ERPs and WMS via Commercient, enabling full-funnel visibility from lead through fulfilment.
  • Boutique engagement model with direct access to senior consultants, high-touch support and on-site training and workshops.
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Questions, answered

Frequently asked about Big Business Agency

The short version is on the surface. Open any question to go deeper.

Big Business Agency is a specialist B2B sales consulting, lead generation and systems-integration firm that helps companies digitise and unify operations from sale to service. The agency designs GTM strategies, omnichannel LinkedIn and Google Ads programmes, and SDR enablement while implementing HubSpot-centric CRM, CPQ, customer portals and quote-to-cash automation, particularly for complex B2B organisations in sectors like TIC, manufacturing, professional services and software.
Big Business Agency does not publish standard pricing or packaged SDR seat rates; engagements are scoped and priced custom based on project complexity, services involved and technology footprint. Third-party directories indicate typical minimum project sizes in the USD $5,000-$10,000+ range and an average hourly rate in the premium band, but official pricing is only available by contacting the firm directly.
Key capabilities include ICP and target-account mapping, omnichannel lead-generation campaigns across LinkedIn, Google Ads and email, Ad Intent Data for real-time attribution and lead capture, lead scoring and automated nurturing, sales enablement and Big Deal coaching, HubSpot CRM implementation and optimisation, CPQ and quote-to-cash automation, B2B eCommerce portals, customer-service workflow automation and analytics dashboards that tie marketing activity to revenue.
In the SDR and B2B lead-generation space, buyers often compare Big Business Agency with outsourced SDR and appointment-setting providers such as CIENCE, Belkins, Martal Group and Sopro, as well as with other HubSpot-focused consultancies and RevOps agencies. The key difference is that Big Business Agency emphasises senior sales consulting, HubSpot and ERP integration and omnichannel campaigns over providing large pools of outsourced SDRs.
Big Business Agency can be a strong fit for ambitious small and mid-sized B2B companies that sell higher-value offerings and are ready to invest in HubSpot, process design and targeted lead generation. However, very small or budget-constrained businesses looking for low-cost, self-serve tools, or B2C-only brands with simple funnels, may find the consulting-heavy engagement model and typical project sizes more than they need.

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