Top SaaS Lead Generation Companies in the UK

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UK SaaS teams are leaning heavily toward partners that offer structure, compliance, industry fluency, and reliable multi-channel execution. Below is a simplified, scroll-friendly breakdown of the top SaaS lead generation companies helping UK firms win more qualified sales conversations in 2026.

1. Callbox

A global lead generation company with strong traction in the UK SaaS space.

Why UK SaaS teams trust Callbox:

• AI-assisted prospecting + human-led qualification

• Strong voice outreach (preferred by many UK buyers)

• Deep experience in cybersecurity, AI, fintech, enterprise SaaS

• Multi-touch sequencing built for long UK sales cycles

• Consistent access to hard-to-reach enterprise decision-makers

Do UK buyers respond to multi-channel outreach?
Yes — especially when email, LinkedIn, and voice are used with strong timing signals.

See how Callbox drove sales for a UK workflow automation company.

2. Sopro (Brighton)

Best known for highly personalised, GDPR-safe email outreach.

Why SaaS companies choose them:

• Email-first strategy aligned with UK culture

• Manually verified, compliant, clean data

• High deliverability and sender reputation protection

• Works well for SaaS selling into regulated sectors

Is email-only effective?
Yes — but works even better when paired with light phone outreach.

3. Punch! (London)

A creative and strategic ABM agency known for enterprise-focused campaigns.

What sets them apart:

• High-end creative assets that help SaaS brands stand out

• ABM built for complex buying committees

• Strong insight-led outreach

• Ideal for large enterprise targets

Does ABM work for mid-market SaaS?
Yes — especially ABM Lite or targeted account programs.

4. Strategic IC (Kent)

Specialists in ABM, inbound strategy, and marketing operations.

Why SaaS teams rely on them:

• Strong content-driven demand generation

• Experience with long SaaS sales cycles

• Solid role-based UK buyer messaging

• Tight alignment between automation and SDR workflows

Do UK buyers rely on content?
Absolutely — as long as it’s practical and industry-specific.

5. Cognism (London)

A leading UK data provider powering compliant outbound outreach.

Why they’re influential:

• GDPR-safe, highly accurate UK B2B data

• Strong intent scoring

• Automated outbound with targeted segmentation

• SDR support for scaling teams

Is compliant data a competitive advantage?
Yes — UK SaaS teams rely heavily on it for clean outreach.

6. Lead Forensics (Portsmouth)

Helps SaaS teams turn anonymous website visitors into sales opportunities.

Why SaaS companies use them:

• Identifies hidden inbound demand

• Strong intent signals for SDR prioritisation

• Great for SEO- and content-heavy SaaS

• Ideal for ABM retargeting workflows

Is visitor identification considered intent data?
Yes — when paired with behavioural patterns.

7. Pearl Lemon Leads (London)

Fast, multi-channel outbound for startups and scale-ups.

Why they’re effective for SaaS:

• Quick setup and flexible outreach

• Email + LinkedIn + phone combinations

• Ideal for early-stage SaaS refining their ICP

• Budget-friendly compared to enterprise-focused agencies

Do rapid outbound experiments work?
Yes — when monitored and optimised quickly.

8. Gravitai (London)

RevOps and lifecycle automation experts, especially for HubSpot and Salesforce.

Why SaaS teams choose them:

• Strong RevOps and CRM implementation

• Builds nurture and automation for long UK cycles

• Great for teams improving internal processes

• Supports full-funnel demand strategies

Do UK SaaS companies need nurture workflows?
Yes — nurturing prevents long-cycle lead decay.

9. MarketMakers (Portsmouth)

One of the UK’s most established voice-led SDR and telemarketing operations.

Why they stand out:

• Highly trained UK-based SDR teams

• Strong focus on voice qualification

• Effective for SaaS requiring consultative discovery

• Ideal for mid-market and enterprise conversations

Do phone-led SDR programs still work in 2026?
Yes — especially for enterprise buyers.

10. The Lead Generation Company (Glasgow)

Phone-first appointment setting across tech, SaaS, and professional services.

Why SaaS companies work with them:

• Structured call processes

• Regionally aware UK buyer approach

• Great for SaaS selling into operations or finance

• Strong at converting cold accounts into active conversations

Is phone outreach still trusted in the UK?
Yes — when done professionally and supported with pre-call warm touches.