RH
Founder, Advazon

I Build Outbound Systems
That Actually Land.

Rakibul Haque · B2B Lead Generation & Email Deliverability

We started Advazon because we kept watching businesses get sold the same broken promise: send more emails, hire more SDRs, buy a bigger list. Almost nobody talked about whether the emails were even landing in the first place.

My Story

Why I Started Advazon.

The short version: I got tired of watching good products fail because nobody fixed the infrastructure underneath them.

I got into B2B lead generation in 2017, doing list-building work for small clients on Upwork. Back then I thought the job was simple: find the right people, write a good message, send it. I was wrong about which part actually mattered.

Over the next two years, I watched the same pattern play out with client after client. They'd write great copy. They'd build a solid list. They'd hit send. And almost nothing would happen. Open rates near zero. Replies that never came. Everyone blamed the message. Almost nobody checked whether the email ever reached the inbox at all.

"I stopped asking clients what their open rate was. I started asking whether their domain had ever been checked for a blacklist."

That shift changed everything about how I worked. I started digging into SPF records, DKIM signatures, DMARC policies, and warmup protocols, not because it was glamorous, but because it was the actual problem nobody was solving. Most freelancers and agencies were optimizing subject lines while their client's domain was quietly burning.

By 2021, I wasn't just building lead lists anymore. I was rebuilding entire outbound systems from the ground up, infrastructure first, copy second. Clients started seeing the difference immediately. Not because the messaging got smarter, but because the emails finally arrived.

I founded Advazon in 2023 to do this work properly, for companies that wanted a real system instead of another freelancer who'd disappear in three months. The mission hasn't changed since: build the infrastructure right, then everything else gets easier.

The Path Here

Seven Years, One Focus.

Every step added a layer to what Advazon does today.

2017

Started in B2B Lead Generation

Began doing list-building and outreach for small clients. Learned fast that a good list means nothing if the emails never land.

2019

Shifted Focus to Deliverability

Started specializing in domain authentication, warmup, and inbox placement after seeing infrastructure, not copy, was the real bottleneck.

2021

Expanded Into Full Outbound Systems

Added LinkedIn outreach, CRM automation, and multi-domain campaign builds. Started taking on larger, more technical engagements.

2023

Founded Advazon

Formalized everything under one brand. Built a process that scales without losing the direct, no-disappearing-act relationship clients actually want.

Today

200+ Campaigns, US Clients First

Working primarily with SaaS companies, agencies, and B2B teams across the United States, with additional clients in the UK and Australia. Still doing the audit calls myself.

The Proof

You Don't Have to
Take My Word for It.

Here's what the numbers and the reviews actually say.

200+
Campaigns Delivered
99%
Upwork Job Success
5.0
Average Client Rating
7+
Years in B2B Outbound
U

Top Rated Plus on Upwork

Ranked in the top 3% of freelancers on the platform, with a 99% Job Success Score maintained across seven years of active client work.

F

Top Rated Seller on Fiverr

A 5.0 rating across every completed order in B2B lead generation and cold email deliverability work.

L

9 Verified LinkedIn Recommendations

Real recommendations from founders, agency owners, and enterprise clients, including a Chief of Staff at LinkedIn and a Forbes 30 Under 30 CEO.

In Their Words

What Clients Say
After the Work.

★★★★★

"He built a cold email engine that reached over 20,000 attorneys with an 86% average open rate. The infrastructure work alone justified the engagement."

N
Nick
Founder, Vikk.ai
★★★★★

"Inbox placement went from around 40% to over 94%, and reply rates jumped to 8.4%. He knows email deliverability better than anyone we've worked with."

J
Jason Simmons
Founder, DeadSoxy
★★★★★

"His strategic approach to building contact lists for our drip campaigns significantly boosted our results. I was genuinely impressed by the execution."

L
Lindsey Imperatore
President, CREtech
Let's Talk

I'll Look at Your Setup
Myself.

Book a free 30-minute audit. You'll talk directly with me, not a sales rep, and you'll walk away knowing exactly what's working and what isn't.

WE RESPOND WITHIN 24 HOURS · NO LONG-TERM CONTRACT · NDA AVAILABLE

Verified Client Reviews

What Clients Say
After the Work.

★★★★★86% Open Rate

We are finally getting real conversations and real downloads. Advazon built a cold email engine that reached 20,000+ attorneys with an 86% average open rate.

N
Nick
Founder · Vikk.ai · LegalTech SaaS
★★★★★Upwork Verified

Advazon set up our entire cold email infrastructure from scratch. Our inbox placement went from around 40% to 94%+ and reply rates jumped to 8.4%.

JS
Jason Simmons
Founder · DeadSoxy
★★★★★LinkedIn Verified

I was exceedingly impressed by their adept management of LinkedIn campaigns. Their strategic approach to building contact lists significantly boosted our results.

LI
Lindsey Imperatore
President · CREtech
★★★★★LinkedIn Verified

I wholeheartedly endorse them for exceptional lead generation services on LinkedIn. His expertise and unwavering commitment have significantly enhanced our outreach endeavors.

ER
Ellen Rudolph
Co-founder & CEO · WellTheory
★★★★★LinkedIn Verified

Rakibul is the best lead gen expert that I have ever worked with. He is easy to work with, friendly and always delivers quality, in good time.

GJ
Guy Jackson
The Scale-up Launchpad · Investor
★★★★★LinkedIn Verified

His expertise in using LinkedIn and email outreach was invaluable in generating high-quality leads for us. Communication was excellent every step of the way.

DE
Daniel Eskandar
Founder · Dartera / Akquire
★★★★★3+ Year Client

I have worked with Rakib for over three years because he exemplifies reliability, efficiency, and quality. Highly recommend.

RC
Ransley Carpio
Consumer Brands · ex-L Catterton
★★★★★99% Data Accuracy

I hired Advazon for two urgent research projects. Very quick, very responsive, and my data had 99% accuracy — very impressive for lead gen.

AH
Angela Hamilton
SDR Ops & Enablement Leader
★★★★★LinkedIn Verified

Rakib was instrumental in helping my team enter a new customer segment. Highly responsive, receptive to feedback, and delivers projects quickly and accurately.

KG
Kathryn Gissiner Treser
Chief of Staff @ LinkedIn