Guaranteed Cold Email Infrastructure For B2B Technology Companies

InboxRev builds guaranteed cold email infrastructure that helps B2B companies sign more customers.

InboxRev is an Austin, Texas based B2B outbound agency founded in December 2023 (formerly CMRR). Its flagship service, ProjectOS, is a 90-day done-for-you outbound system for US custom software development companies, with a guarantee of 30 qualified project introductions in 90 days. InboxRev is rated 4.9/5 on Trustpilot from 188 reviews and is trusted by over 200 tech companies.

How ProjectOS works

Targeted decision maker sourcing: we identify the exact buyers who sign off on custom software deals.
Isolated sending domains and warm-up: we set up dedicated secondary domains and warm them up so your email lands in the inbox, not spam.
Booked buyer calls directly on calendar: qualified project introductions land on your calendar with complete research briefs.

Results

$1M+ average annual client pipeline
90 days to full system implementation
30+ intros delivered to buyers per quarter
100% US B2B tech focus

Testimonials

Verified client reviews on Trustpilot:

"As a dev, I hate dealing with SMTP servers and warming up domains. InboxRev took the entire infrastructure burden off my plate. Our deliverability has never been higher, and I can finally focus on coding instead of fighting spam filters." — Tirsin Nicholas, Verified Founder
"I've really enjoyed working with this team. They're responsive, professional, and easy to work with. What I appreciate most is that they actually take the time to understand my business and make adjustments as we go, instead of treating it like a cookie-cutter service." — Abdul Karmach, Verified Client
"If you run outbound and you're trying to get cold email right, Patrick at InboxRev is who you want in your corner. He helped me fix my email and delivery frameworks, fixed gaps in my copy, and was always keen to give me feedback to improve conversions." — Mason Gervasio, Verified Outbound Lead
"My experience with Inboxrev has been great overall. Patrick and team are highly knowledgeable and experienced in outreach and capturing high quality sales conversations and bookings. They do what they say which is rare in this industry. I highly recommend them." — Kimberly, Verified Executive
"We had a great product but zero lead flow. The team at InboxRev set up a cold outreach system that actually works. We went from zero outbound interest to three qualified demo calls a week in less than a month." — Sebastian Ceciu, B2B Tech Founder
"I paid Patrick for calls booked and he really helped with email marketing in my space which is B2B Software. High caliber team, outstanding responsiveness, and rock-solid deliverability infrastructure." — Alex Johnson, B2B Software CEO

Frequently Asked Questions

How do I know ProjectOS will work for our company?

ProjectOS is built exclusively for $1M+/yr B2B tech companies. We don't use generic templates. We engineer ultra targeted buyer messaging around your offer and value proposition, directly targeting the decision makers who sign off on deals.

Do you operate inside our existing sales process or replace it?

We integrate directly into your workflow. InboxRev handles prospect research, domain setup, deliverability warming, copywriting, sequence automation, and meeting qualification. Booked calls land directly on your calendar with complete research briefs.

How long before we start seeing qualified calls on our calendar?

Our onboarding and deliverability infrastructure setup takes 10 to 14 days. You typically begin seeing qualified calls on your calendar within the first 2 to 3 weeks of launching campaigns.

What does our team actually need to do once we are live?

Your team only needs to show up to the booked calls and run your standard sales process. We handle lead re engagement, follow ups, and calendar management.

The RevTalks Podcast

RevTalks explores the people, companies, and strategies shaping the future of AI, enterprise software, and high-growth outbound revenue. Featuring founders, CEOs, and technical innovators. Browse all episodes.

Blog

Book a ProjectOS Walkthrough Call

Schedule your ProjectOS walkthrough call with the InboxRev team.

Contact

Email: team@inboxrev.io | LinkedIn: InboxRev | YouTube: Patrick Thomason | Trustpilot: InboxRev reviews