Reachflow, founded by Gabriel Martínez in Spain, is the leading outbound agency specializing exclusively in cold email outreach for B2B businesses.
With a strong focus on humanized, brand-aligned outbound systems, Reachflow helps clients achieve measurable growth by meeting their objectives and adhering to the highest market best practices.
Gabriel and his team have been operating in the agency space for over four years. Initially focused on content creation for social media clients acquired through cold emailing, Reachflow gradually transitioned to specialize fully in cold outbound.
Today, they are recognized as the top outbound agency in Spain, known for their deep understanding of local ICPs and creative response-generating tactics.
Before adopting Smartlead, Reachflow experimented with multiple lead generation and cold outreach tools. While some platforms offered extensive lead generation features, none met the critical requirements for efficient cold email marketing.
Deliverability issues, limited API functionalities, and inadequate customer support made it difficult to scale campaigns and achieve consistent results.
Their core challenges were:
After extensive industry discussions and peer recommendations, Reachflow decided to switch to Smartlead. The key factors influencing their decision were:
Unlike other platforms, Smartlead’s API allowed seamless integration of their entire lead flow and campaign structure, enhancing automation and efficiency.
Smartlead’s constant updates and innovations, including SmartDelivery, SmartSenders, and SmartServers, ensured their emails landed in primary inboxes, driving higher engagement.
Responsive and knowledgeable support made a significant difference in maintaining smooth operations.
Features that supported hyper-local campaigns aligned with Reachflow’s strategy of targeting prospects geographically close to clients.
Gabriel remarked, “Smartlead is centered around deliverability and constantly evolving. Their API is not like any other platform. The customer support is always ready to help, which makes all the difference.”
Reachflow integrated Smartlead fully into their outbound process, leveraging its capabilities to:
Reachflow’s partnership with Smartlead led to outstanding outcomes:
In one notable campaign targeting a consultancy firm in a specific Spanish region, Reachflow achieved a 28% reply rate with 322 replies in total. Remarkably, the positive reply rate was 47%, resulting in 153 highly engaged leads. This translated directly into over €500,000 in closed contracts from just one campaign.
Another client, a marketing firm with over 1000 employees, reported a 35% revenue increase within a year solely by leveraging cold email outreach powered by Reachflow and Smartlead.
Gabriel attributes this success to Reachflow’s focus on localizing outreach and making it feel close and personal to prospects:
“When you contact people from their own city or region, it feels near, familiar. This lowers resistance and increases engagement.”
Smartlead’s powerful API allowed Reachflow to fully automate their lead import, campaign setup, and reporting workflows. This automation replaced manual processes, saving time and reducing errors.
Features like SmartDelivery and SmartServers ensured emails reached the primary inbox, significantly improving open and reply rates. Continuous platform updates helped maintain top deliverability standards.
Smartlead’s flexibility enabled Reachflow to run campaigns segmented by geographic location and language, crucial for markets like Spain with regional language differences.
Responsive support and the active Smartlead Slack community provided Reachflow with timely assistance and industry insights, supporting ongoing optimization.
Gabriel shared that as Smartlead continues to evolve, they hope to see:
Reachflow’s journey with Smartlead demonstrates how a deliverability-focused, API-powered platform can transform cold email outreach, even in competitive and localized markets. By integrating Smartlead into their workflows, Reachflow has not only boosted response rates and client revenue but also streamlined operations and scaled efficiently.
“Smartlead covers all our needs. The focus on core features like deliverability and API integration is unmatched. Their evolving platform and customer support empower us to deliver consistent, high-impact campaigns.” – Gabriel Martínez, Founder, Reachflow
This case study highlights how businesses can leverage Smartlead to drive significant growth in B2B outbound marketing, especially when combining powerful technology with deep local market understanding.
Join us to elevate your outreach!
Founder, StackOptimise
Smartlead's combination of automation, unlimited inboxes, and easy campaign management has completely transformed how we run cold email campaigns.
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Founder, Cold Email Hackers
We have about 15 companies and we use Smartlead for all of them.
Founder, DutchSave Media
One of the things I love about using Smartlead is the deliverability feature. If they landed in the bounce or spam folders, we could resolve this quickly.
Co-Founder, Growth Today
I want to continue to use Smartlead to make operations more seamless - the plan is to bring more clients here and build more SOPs.
Founder, FueltoFly
Smartlead listens to the agencies and customers and builds according to what people want, that has really made things easier for us.
Founder, OutboundSync
We build an infrastructure product, and OutboundSync communicates with Smartlead itself. I love the webhook and API. They're really well done and keep getting better.
Founder, Axoleads
With SmartDelivery, you can put all of that in the hands of the tool. It ensures your emails land in inboxes, and by running a simple test, you can see if you're hitting the mark.
Founder, Claygen
Deliverability is the cornerstone of cold email outreach. You could have the best email copy in the world, but if no one is seeing it, it's useless. I really love the feature where you can actually give client accesses to your clients.
Co-Founder, Cymate
I do not want to switch to another software. Pick a solution you trust, stick with it, and keep refining your copy.
CMO, Avalanche Capital
Managing large volumes of emails through multiple inboxes used to be a logistical nightmare. With Smartlead, the process is seamless. We book thousands of discovery calls through cold emails. These campaigns are generating leads at a scale we never thought possible.
Founder, Growth Engine X
We came for the unlimited inboxes, and we stayed for the API. 1.5M cold emails/month, 7,767+ inboxes managed.
Head of Community & Ecosystem, TxtCart
You cannot replace having 10,000 touches with potential clients. When you have that much distribution and reach, you really start to see incredible results. The simplicity of Smartlead made all the difference. It doesn't require you to be a technical wizard.
Founder, Hyperke
Smartlead has been a game-changer for us. It increased our appointment volume, improved ease of use, and offered valuable features. 80% increase in appointments/month, peak of 276 appointments in a single month.
Founder, Kinetyca
Smartlead has been our cold email backbone from day one. The platform evolves constantly, keeping pace with how deliverability and personalization need to work today. 21% overall reply rate, $175K in 4 months for multiple B2B clients.
Founder, Reachflow
Smartlead is centered around deliverability and constantly evolving. Their API is not like any other platform. Smartlead covers all our needs. The focus on core features like deliverability and API integration is unmatched.
CEO, Halfwarm
Our approach to crafting conversational emails led to reply rates that many of my peers thought were unattainable.
Co-Founder, letstrike
We've grown on zero capital, zero marketing, purely cold emailing - and that's the story we love to tell. The best approach is no approach if you can't handle domain meltdown. The second best is something like Smartlead that's built from the ground up for deliverability at scale.
Founder, Fenixtal
Smartlead's white-labeling and automation let us punch above our weight. The 12M euros sales potential? That's what happens when you combine human creativity with Smartlead's precision.
Co-Founder, Digital Creativs
Nine out of 10. Ninety percent of our clients are on Smartlead unless they come in with an existing setup. That's the default.
Co-Founder, BuildingReach
At the end of the day, you have to take a bet on one tool or another. It was a no-brainer taking that bet on Smartlead. We had to even turn down the volume of our marketing campaigns - Smartlead was capable of driving more volume than our sales team was able to fulfill.
Founder & MD, Prospectiv
Since starting the business in January of this year, we've already generated $200K in sales exclusively from cold email. Smartlead has been central to our operations and has exceeded our expectations.
Founder, Growthlynk
There's so much stuff built on top of it. I would be dead if I had to rebuild it with another tool. I can manage hundreds of senders easily. I can send hundreds of thousands of emails.
Founder, Corebits
The platform's HubSpot integration, real-time Slack updates, and advanced campaign customization have been game changers for our business and our clients'.
Founder, Apex Ascension
From day one, we've never used anything else.
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