How devlo personalizes outreach at scale and closes $50k deals with lemlist

Meet devlo, B2B outbound experts

devlo helps companies generate leads and grow revenue through targeted, personalized, multichannel prospecting.

Led by CEO Charles Perret, the agency supports clients across industries including cybersecurity, real estate, learning and development, human resources, and sustainable development.

Companies can outsource their B2B prospecting to devlo or learn to manage it themselves through dedicated training.

The challenge: Make every email feel personal, at scale

devlo’s clients needed more than visibility. They needed qualified meetings and new customers. For some, reaching their sales demo targets was also an important step toward their next funding round.

To deliver, Charles and his team needed to capture prospects’ attention and generate positive replies without spending hours personalizing individual emails.

The question was simple: how could they create emails that felt relevant to each prospect while reaching hundreds of people?

Charles found his answer in a LinkedIn post from lemlist’s founder, Guillaume, about personalizing images at scale.

It was such an amazing idea to differentiate our cold emails from the mass.

— Charles Perret, CEO @devlo

The solution: Combine personalized images with tailored copy

Give each prospect a reason to pay attention

With lemlist, devlo added personalized images to its clients’ campaigns, making each email feel more relevant to the recipient.

For campaigns using different images for different leads, the team imported image URLs as custom variables and inserted them into the email template.

I'm one of the biggest fans of custom images because they let me be creative and find original ways to impress the leads we prospect. Sometimes, we can communicate the value of the solution we’re promoting using the custom image. We help the prospect to picture what the product is about since a picture is worth a thousand words. But other times, we also like to crack a joke!

— Charles Perret, CEO @devlo

This allowed devlo to deliver personalized visuals across a campaign without manually editing every email.

Adapt the message to the recipient

Charles also used Liquid syntax to tailor the email copy automatically based on prospect data.

Alongside custom variables for details such as names and companies, conditional content helped the team adapt parts of the message to different recipients within the same campaign.

Together, personalized images and tailored copy gave devlo more ways to make its outreach feel thoughtful and relevant at scale.

The results: More conversations, more sales opportunities

lemlist is helping us achieve fantastic results across all outbound campaigns. In just a year, when we combine all the campaigns we did for our clients, our average response rate is 43% - that's crazy. Almost one prospect in two responded! They say they like our approach because it's disarming, direct, and original.

— Charles Perret, CEO @devlo

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Across its client campaigns within a year, devlo reported an average reply rate of 43%, almost one reply for every two prospects contacted.

Prospects responded to the team’s direct, original approach, helping devlo start conversations and create new opportunities for its clients.‍

The agency reported booking 900+ sales demos for clients, with the story highlighting closed deals worth up to $50k.

It was the first effective solution to start building relationships with my prospects (and break the ice).

‍For Charles, lemlist became a way to connect strong client offerings with the people who could benefit from them:

lemlist helps us boost our customers' sales. Our clients have great solutions, but they're having trouble getting the word out: lemlist is one of our best tools for doing just that.

— Charles Perret, CEO @devlo

Curious to see what your team can achieve?

Explore how lemlist helps you personalize outreach at scale, start more conversations, and turn replies into revenue: Start your free trial