Will you send from my main domain?

Never. We buy and warm secondary domains that redirect to your main site, so your primary domain's deliverability is fully protected. If we ever get flagged, your main sender reputation stays clean.

How do you keep emails out of spam?

Full DNS setup (SPF, DKIM, DMARC), 4–6 weeks of inbox warming, low daily volume per inbox, and continuous deliverability monitoring across Instantly and Smartlead. We check inbox placement weekly.

How personalized are the emails at scale?

Every email pulls at least one personalization variable enriched by Clay — a recent hire, funding round, tech stack signal, or LinkedIn post. Nothing generic, nothing that reads like a template blast.

What reply rates should I expect?

3–8% positive reply rate is our benchmark for a healthy campaign, depending on ICP. We optimize on positive replies and booked meetings, not vanity open rates.

Our in-house copywriters, working from your ICP, offer, and case studies. Every sequence is A/B tested and iterated monthly based on reply data.

Cold Email

Cold email that lands and replies.

Deliverability-first cold email at scale—engineered for the inbox, not the spam folder.

Book a call

60%+inbox placement across our sending stack

Meetings bookedStraight to your calendar

Weekly reviewSee what the market says

Why our emails actually get replies.

Cold email is 20% copy and 80% infrastructure. Get the infra wrong and the best copy in the world goes to Promotions. Here's how we keep every send in the primary inbox.

Inside the cold email pod

Domain setup, DNS, DMARC & warming
Per-prospect personalization at scale
A/B tested sequences with reply-rate targets
Deliverability monitoring & inbox rotation
Clay-enriched send lists with intent signals
Positive-reply meetings booked to calendar

Why our email lands when everyone else's spams.

Cold email is 20% copy and 80% infrastructure. We built an email operation where every piece — the domains, the warming, the copy, the testing loop — is tuned for one job: positive replies from your ICP.

We never send from your main domain — your sender reputation stays clean.
Every inbox is warmed 4–6 weeks before a single cold send.
Every email carries at least one Clay-enriched personalization variable.
Sequences are A/B tested monthly against positive replies, not opens.
Bounce rates stay under 2% — every address is validated before sending.

G2 · Client reviews

See what clients say about working with BizDev Labs.

★★★★★5.0 on G2View our G2 reviews

“Working with BizDev Labs was a no-brainer. We generated a consistent lead flow, created great content, and closed multiple enterprise deals. We're still seeing inbound leads from BizDev Labs today.”
CEO and Co-Founder
Voiceflow

“BizDev Labs has been an integral component of our sales strategy. Their flexibility in meeting the needs of a SaaS startup has been impressive.”
VP of Marketing
Zuper

“In just three months, BizDev Labs helped us increase SQLs by 50% and build a more diverse, future-ready pipeline. Their team quickly became an extension of our team: responsive, flexible, and deeply invested.”
Director of Marketing & Operations
Axiell

How cold email is implemented, week by week.

The channel enters the same 14-day build, approval loop and measurement plan as the rest of your outbound engine.

1
Days 1 to 14
20 question intake, domains bought and authenticated, list one built in Clay, three angles written, approved and launched.
2
Week 2
Calling live, volume ramps, recordings shared from day one, first conversations start.
3
Month 1
1,000 dials a week per caller. Three angles left untouched. First meetings from week three.
4
Month 2
Losing angles killed, ICP tightened on disposition data, objection library written.
5
Month 3
Playbook handed over. Monthly meeting number agreed in writing. First exit gate.
6
Months 4 to 6
Second play, new segment, monthly insight report, quarterly gate.

What we put in writing.

Live in 14 days from signature, or month one is free.
1,000 dials a week per caller, evidenced in the dialer, not claimed in a slide.
A weekly report with real learnings, or that week is free.
Every list, script, sequence, recording and playbook is yours, during and after.
Quarterly exit gates. If we are the reason it is not working, you leave.
We will not invent a meeting number before your market has answered.

The email implementation

Email starts on infrastructure we control, then earns volume as the inbox gives us evidence.

Secondary domains with SPF, DKIM and DMARC configured in week one
Warmed mailboxes only, with low-volume ramping
Three angles per campaign, tested against positive replies

The full sending stack, built for you.

Sending infrastructure

Instantly + Smartlead, warmed inboxes, and secondary domains.

Messaging framework

Panic → Relief → Invitation copy tuned to your ICP.

Weekly reporting

Reply rate, positive reply rate, meetings booked, pipeline created.

Cold Email clients we ship for.

What cold email clients say.

Real quotes from B2B founders and revenue leaders.

See all client testimonials

“Working with BizDev Labs was a no-brainer. We generated a consistent lead flow, created great content, and closed multiple enterprise deals. We're still seeing inbound leads from BizDev Labs today.”

Braden Ream

CEO and Co-Founder, Voiceflow

$15M Series A

“BizDev Labs has been an integral component of our sales strategy. Their flexibility in meeting the needs of a SaaS startup has been impressive.”

Rob Freedman

VP of Marketing, Zuper

$32M Series B

“In just three months, BizDev Labs helped us increase SQLs by 50% and build a more diverse, future-ready pipeline. Their team quickly became an extension of our team: responsive, flexible, and deeply invested.”

Emily Gumpel

Director of Marketing & Operations, Axiell

$25M revenue

“Our experience with BizDev Labs has been exceptional. Their deep understanding of ABM and lead generation, combined with strong expertise, advanced tools, and AI helped us generate qualified leads at scale.”

Rachan Raj

Business Development & Projects, Biostate AI

Raised $12M

Cold Email FAQs.

Questions we get about cold email.

Let's talk about your market

Ready to send email that actually gets read?

Book a call and we'll audit your current domain setup, deliverability, and copy — then map the first 30 days of sending.