Cold email agency

Your UK B2B cold email agency

Opportunities created and pipelines built – it’s time to win with cold email outreach that works.

Sopro runs fully managed B2B cold email campaigns that put your brand in front of the right decision-makers, start conversations, and deliver sales opportunities at scale.

  • Focused targeting – Outreach built around your ICP and exclusive buyer data
  • Personalised outreach – AI-augmented sequences that read like real conversations
  • Total transparency – Track replies, engagement, and ROI in real time

Power your pipeline

The UK cold email marketing agency you can trust

Review
4.9
Review
4.7
Review
4.7
Review
4.7

Cold email doesn’t have to mean spam. Done right, it’s one of the most effective ways to break into new accounts, spark conversations, and fill your pipeline.

At Sopro, we don’t send generic blasts. We design tailored cold outreach strategies that cut through inbox noise and deliver genuine business conversations with high-value accounts.

Common cold email challenges we solve

Do any of these roadblocks sound familiar?

  • Lots of emails sent, but few meaningful replies
  • Generic templates that don’t feel personal
  • Poor targeting that wastes time and budget
  • Compliance concerns holding you back

When cold email starts feeling like more risk than reward, it’s time to bring in the experts.

With Sopro, your campaigns are built strategically around your audience, personalised to each decision-maker, designed to generate responses, and managed end-to-end by experts.

  • Built strategically around your audience
  • Personalised to each decision-maker
  • Designed to generate responses
  • Managed end-to-end by experts

Book a demo to see what you can achieve by outsourcing your cold email outreach to experts.

Book a demo

It’s time to win big with B2B cold email

When cold outreach is done well, it opens doors at scale. Here’s what that looks like…

Predictable pipeline growth

A consistent flow of qualified leads for your sales team to turn into booked meetings.

Prospects that match your ICP

Outreach to the right people, every time, and maximise results.

Scalable, reliable outreach

Dial up campaign efforts or pull back to fit your growth needs.

Accelerated market entry

Start high-value conversations in days, not months, and close competitor gaps in record time.

Hands-off management

Sopro handles everything, from data sourcing to replies.

Always-on engagement

Protect your pipeline with steady outreach that avoids peaks and troughs.

How Sopro’s cold email campaigns work

Here’s our step-by-step process for delivering high-performance cold outreach:

1

Audience definition and preparation

We define your target accounts and decision-makers, align messaging to buyer pain points, and set measurable goals.

2

Data sourcing and compliance

We source and double-verify GDPR-compliant prospect data. Every record is enriched with job role, seniority, and relevant context for maximum impact.

3

Copywriting and campaign setup

Generative AI messaging makes messaging work harder and delivers better bang for your buck. Expert cold email copywriters use trained AI to scale without losing impact.

4

Outreach cadence and automation

We build natural email sequences (not spam blasts), with spacing, follow-ups, and behavioural triggers that mimic real sales engagement.

5

Learning and optimisation

We test subject lines, angles, and send times continuously to improve open and reply rates. Your audience never stands still, and neither do we.

6

Reporting and insights

Track every open, click, and reply in your live campaign dashboard to book more meetings and close more deals.

Like what you see? This is only the beginning.

Book a demo to discover how Sopro’s B2B email marketing fills your pipeline with the right opportunities.

Lets talk

Cold email tech to power your B2B outreach

Our proprietary outreach tech stack combines Sopro’s in-house tools with best-in-class integrations to keep your campaigns firing on all cylinders.

Fast setup

Launch cold outreach campaigns in weeks with streamlined onboarding and ready-to-go integrations.

Accurate targeting

Reach the right people with verified, enriched prospect data built around your ICP. Zero fluff or false leads; just high-impact sends.

Clear reporting

Get full visibility and manage interactions from the very first touchpoint with performance data you can trust when it matters most.

Seamless CRM sync

Plug Sopro into your existing CRM so that every reply and contact flows directly into your systems for effortless follow-up.

Why choose Sopro for cold email marketing?

Cold email outreach is powerful…but only when it’s done right. Here’s by leading B2B brands specialising in SaaS, recruitment, telecoms, marketing, financial services, and more trust us to deliver.

Outreach expertise

With 300+ specialists and thousands of campaigns delivered, we know how to cut pique interest and spark genuine sales conversations.

Compliance built-in

Every campaign is GDPR and CAN-SPAM-compliant with verified data and ethical outreach, protecting your brand while delivering the results you need to see.

Your data, forever

We source and enrich prospect lists tailored to your ICP. Once campaigns are sent, this is your data to keep and use forever.

Managed end-to-end

From targeting and copy to delivery, replies, and optimisation, our team of experts run your cold email campaigns from start to finish.

AI enhancements

We combine human expertise with AI trained on 100M+ emails, creating personalised outreach sequences that scale.

Full transparency

Track every open, reply, and conversion in your live dashboard, with clear reporting that shows the true impact of your cold outreach campaigns.

Don’t risk your brand with poor-quality cold outreach. Choose the agency that’s been running compliant, high-performing campaigns for over a decade.
Start seeing results

Sopro vs other cold email providers

Looking for cold email marketing that does more than talk a big game? You could keep things in house or rely on third-party software, but if you’re serious about results, you need to experts by your side. Here’s how Sopro stacks up:

Sopro In-house teams Email software
Strategy & messaging Fully managed Resource heavy DIY templates, often rigid without training
Prospect data Verified and fully-compliant Limited to what’s in your CRM List uploads only
Outreach cadences Bespoke, natural, and refined with performance data Needs training and experience to succeed Standard automation
Compliance Built-in safeguards for regional targeting Risk sits with you Varies by platform
Optimisation Continuous testing for always-on improvement Time-consuming Basic
Reporting and ROI Pipeline-level insights on demand Manual tracking Open and click rates only

With Sopro, you get more than emails in inboxes. Much more. Our experts design outreach sequences to start real conversations with your target audience, all with the speed and precision your business needs to thrive.

Ready to win more of the right leads?

Build my campaign

Don’t just take our word for it

The proof is always in the pudding. Or, in the case of B2B cold email marketing, the trust is in the testimonials.

Read more reviews

“I get 25 prospecting emails a day, and they’re always the same. Amongst the noise, Sopro’s emails stood out. They were amazing. My co-founders and I forwarded them to each other and immediately put together a business case.”

Steve Foster

Steve Foster | Head of Customer Success

“The results exceeded our expectations. The response was overwhelming in the best way possible. We secured key partnerships, expanding our corporate relationships in ways we hadn’t been able to before. It’s been incredibly successful.”

John Hayward-Cripps

John Hayward-Cripps | CEO

“It’s really opened the door to some significant companies we’d previously struggled to reach… The ROI from the Sopro campaign has been very, very positive.”

Alan Byrne

Alan Byrne | Commercial Director for Mid-Market

B2B cold email solutions for your sector

Cold outreach works differently in every industry. We adapt each campaign to your buyers, their priorities, and the way decisions get made in your market.

Saas

Fuel consistent pipeline growth, from product-led growth models to enterprise deals.

IT

Engage tech decision-makers with targeted, technically relevant outreach.

Telecoms

Connect with the right B2B buyers in fast-moving, competitive markets.

Design

Win high-value contracts with outreach that speaks to the right creatives.

ISPs

Target the right B2B internet service buyers with laser precision.

Training & Coaching

Book meetings with prospects actively investing in people development.

Staffing & Recruitment

Engage hiring managers and HR leaders with a proven approach to lead gen.

Marketing & Advertising

Reach CMOs and brand directors with campaigns that cut through the noise.

Financial Services

Generate leads in regulated sectors through compliant, effective outreach.

Management Consultancy

Secure meetings with senior decision-makers who value strategic insight.

Your business is our business. Not sure where you fit in?

Lets talk

Bespoke B2B cold email marketing data

Cold email marketing is nothing without rock-solid data. We build each campaign from the ground up, using award-winning data from millions of sources.

This means you benefit from:

  • Precision targeting – every contact is a verified match for your audience.
  • Full ownership – all data is yours to keep, download, and reuse.
  • Deeper insights – get access to campaign engagement data to inform future outreach.
Bespoke enrichment points
Over 12 million B2B sites crawled monthly
24/7 portal access

Cold email marketing success stories

See how we’ve helped ambitious brands like yours drive standout growth with cold email outreach.

Alan Byrne

“It’s really opened the door to some significant companies we’d previously struggled to reach… The ROI from the Sopro campaign has been very, very positive.”

Alan Byrne | Commercial Director for Mid-Market

Tom Newham

“I was so impressed with the results that after the first three months, we decided to double our spend. It was that good. And since then, it’s grown even more so.”

Tom Newham | Managing Director

Kathryn Strachan

“It was a month or two into working with Sopro that we got our first closed deal. That one deal covered all of Sopro’s expenses and still continues to. ”

Kathryn Strachan | Managing Director and Owner

More success stories

Ask the experts about our B2B email marketing services

Got questions? We’ve got the answers.

Here’s what Megan Thomas, one of our cold email specialists, has to say about common questions businesses ask before getting started with Sopro:

We can launch in three weeks. That time allows us to define your ICP, source and double-verify data, and create messaging sequences that resonate with busy decision-makers. Trying to move faster often means cutting corners on targeting or compliance, which risks poor delivery and weaker results. Three weeks gives us the solid foundation for outreach that works from day one.

Cold email is designed to spark sales conversations, so the key metrics are replies and opportunities. Results vary depending on your market and goals, but most clients see genuine responses and qualified leads in the first few weeks. To give you confidence, we publish two years of live campaign performance data (which is updated daily) so you can see exactly how Sopro campaigns perform across industries.

Not much. We manage the heavy lifting, from building prospect lists and writing copy to running campaigns and monitoring replies. Your role is simple: join onboarding calls, pick up the leads we generate, and give feedback so we can fine-tune campaigns. The more insight you share about your ideal customers, the better we can tailor outreach to your market.

Yes. All data is yours to keep forever. That includes verified contact details, reply history, and enriched prospect information mapped to your ICP. You can use it across sales, marketing, or CRM systems long after the campaign has ended, making every outreach project a long-term investment.

Yes, when it’s done right. Bad cold email (bought lists, generic templates, spammy cadences) gives the channel a bad name. But with verified data, personalised sequences, and compliance-first practices, cold outreach remains one of the fastest ways to open doors with senior decision-makers.

Not with Sopro. Deliverability is a huge part of our process. We manage sending domains, warm-up, cadence spacing, and messaging to protect your reputation and ensure emails land in inboxes.

It’s easy to think that scaling up any sort of marketing messaging ends up diluting the quality, but we do things differently. Our copywriters build bespoke sequences and then use Sopro’s AI engine, which is trained on over 100M live prospecting emails, to scale personalisation without losing the human touch. Every message feels direct, relevant, and written for the individual.

In our experience, it’s going too broad. Many businesses waste effort by blasting generic messages to poorly matched lists. We flip that on its head, leveraging cold email as a channel to execute account-based engagement strategies. every campaign starts with ICP mapping, so you’re only talking to the right roles in the right companies with the right message.

250+ multi-channel experts
10+ years of innovation and experience
Over 127m messages sent

Get our cold email expertise straight to your inbox

Sharp insights, proven tactics, and data-led strategies to help you master cold outreach and turn conversations into pipeline.

Learn more about B2B cold email

Cold email marketing, and then some

Cold email is just the first step. From there, Sopro helps you expand into multi-channel lead generation, demand generation, and beyond, building a complete growth engine around your business for lasting impact.

Lead generation

Turn interest into action with targeted lead gen campaigns that deliver high-quality, sales-ready opportunities. From audience insight to opportunities, we handle everything.

Explore lead generation solutions

Multi-channel marketing

Reach your audience wherever they are. We combine email, LinkedIn, phone, retargeting, and more to create integrated campaigns that keep your brand front of mind until the deal is done.

Explore multi-channel marketing solutions

Demand generation

Build market awareness, stay visible, and convert high-intent interest into opportunity. Our campaigns sync targeted outreach with your content and ads to fill your funnel from the top down.

Explore demand generation solutions

Ready? It’s time to get growing

Tell us your growth goals, and we’ll show you how Sopro’s expert-led cold email campaigns can help you reach them.

  • See results in weeks
  • Cold emails that convert
  • Full transparency from day one
  • Campaigns tailored to your tech and team

Ready for a warmer conversation?