#1 Lead Growth Services

Generate more leads with cold email marketing that works

At Intentzy, we help businesses consistently book qualified sales meetings through data-driven, hyper-personalized cold email campaigns.

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Delivered high-impact emails

Emails sent
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Active Users
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More than 900,000 people has using OneSecond and satisfied with our platform.

Client business served

Worked with 1.5K+ industries

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OneSecond
Who We Are

A cold email agency built for results results

We’re a cold email marketing agency built for one purpose: helping businesses connect with their ideal customers and close more deals. Instead of wasting time on unqualified leads, we craft outreach campaigns that put you in front of the right decision-makers at the right time.

Our Service

Cold email marketing that delivers that delivers

We specialize in done-for-you cold email marketing campaigns that take the stress out of lead generation. From research to execution, we manage the entire process so you can focus on closing deals.

Targeted Lead Research & List Building

Identify and compile highly relevant prospects who match your ideal customer profile.

Verified Contact Data

Ensure accuracy with validated emails that reach inboxes, not spam folders.

Personalized Email Copywriting

Craft tailored outreach that resonates and gets real replies.

Campaign Setup & Automation

Launch fully managed campaigns with seamless workflows.

Deliverability Optimization

Maximize inbox placement and improve open rates.

A/B Testing & Improvements

Continuously refine subject lines, messaging, and timing for better results.

Weekly Reporting & Insights

Get transparent metrics and actionable insights every week.

Ready Now

Start your cold email campaign today

Book more qualified meetings while we run your outreach end-to-end.

Why Choose Us

Proven Outreach, Predictable Results

We don’t just send emails — we build campaigns that convert.

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Proven track record of helping businesses scale with predictable leads.

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End-to-end service: from strategy and copy to automation and reporting.

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Hyper-personalized outreach that cuts through inbox clutter.

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Continuous testing and optimization to maximize results.

Client Wins

Campaigns that deliver real results

Our cold email campaigns have consistently helped businesses achieve measurable growth

Qualified Meetings
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Book 200+ qualified meetings within 3 months.

Close high-ticket deals worth $50K+ through targeted outreach.

High-Ticket Deals
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Expand into 5+ new markets in under 6 months.

New Markets
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Reply Rates
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Achieve 65%+ reply rates with hyper-personalized campaigns.

User Reviews

See how OneSecond transforms email marketing for our users

28 Feb 2025

OneSecond transformed our email marketing strategy. Our open rates have doubled, and customer engagement is at an all-time high. Their automation tools make everything so much easier. Truly a game-changer for digital marketing!

James Carter

Marketing Manager

04 Jan 2025

I used to struggle with email campaigns, but OneSecond simplified everything. My sales have significantly increased since using it!

Sarah Collins

Business Owner

18 Feb 2025

OneSecond has been a lifesaver for our company. Their analytics give us deep insights into customer behavior.

Mark Davis

CRM Specialist

31 Dec 2024

With OneSecond, our email campaigns feel more personalized and effective. We’ve seen a noticeable increase in responses and conversions. Their customer support is also fantastic—always ready to assist whenever needed!

Michael Robert

Product Manager

21 Jan 2025

OneSecond makes email marketing effortless from start to finish! The A/B testing feature helped us optimize subject lines and email content, leading to significantly higher open rates. I wish we had switched to them much sooner!

Olivia Brown

Growth Marketer

16 Dec 2024

Our newsletter engagement has skyrocketed thanks to OneSecond. Their easy-to-use platform and smart segmentation features.

Emily Watson

Content Strategist

Find Your Solutions

Your guide to understanding OneSecond's capabilities

Cold email marketing is the process of sending personalized outreach emails to potential prospects who haven’t interacted with your business yet. At Intentzy, we combine targeted lead research, personalized copywriting, and deliverability optimization to connect you with decision-makers who are most likely to respond.

While results vary depending on your industry and offer, many of our clients book 50–200+ qualified meetings within the first 3 months. We focus on building a consistent and scalable pipeline of opportunities for your business.

We handle everything — from targeted lead research and verified contact data to setting up campaigns. You don’t need to provide your own lists unless you prefer to.

We use verified data, domain warm-ups, deliverability best practices, and regular A/B testing to maximize inbox placement. Our team constantly monitors and optimizes campaigns to keep deliverability rates high.

If you sell a B2B product or service and need more qualified leads or booked meetings, cold email marketing can work for you. We tailor each campaign based on your target audience and goals.

Unlike generic outreach services, we provide done-for-you campaigns that are hyper-personalized, data-driven, and continuously optimized. Our focus isn’t just sending emails — it’s generating real business results.

Get Started

Book your free strategy call

Ready to generate more qualified leads and grow your business? Let’s talk.