Outbound. Engineered.
We build and run outbound systems that reach the right people at the right time — reliably, precisely, and at scale.
No gimmicks. No guesswork. Just infrastructure that performs.
Real results from real clients.
Therapy matching platform simplifying the search for mental health professionals.
30-Day Performance
Emails Sent
30,398
Interested Prospects
1097
emails per positive reply
Sports team management platform creating fair teams and stress-free seasons.
30-Day Performance
Emails Sent
18,182
Interested Prospects
93
emails per positive reply
Medical device company creating products to help surgical wounds heal properly and prevent complications.
30-Day Performance
Emails Sent
5,858
Interested Prospects
50
emails per positive reply
Therapy matching platform simplifying the search for mental health professionals.
30-Day Performance
Emails Sent
30,398
Interested Prospects
1097
emails per positive reply
Sports team management platform creating fair teams and stress-free seasons.
30-Day Performance
Emails Sent
18,182
Interested Prospects
93
emails per positive reply
Medical device company creating products to help surgical wounds heal properly and prevent complications.
30-Day Performance
Emails Sent
5,858
Interested Prospects
50
emails per positive reply
From zero to inbox in 4 weeks.
Build the infrastructure
Strategy locked. Domains authenticated. Warming begins.
Build the lists
Lead lists created. Data enriched. Targets defined.
Craft the message
Copy drafted. Reviewed. Refined.
Go live
Warm-up complete. Emails sending. Pipeline activated.
Optimize and scale
Responses monitored. Messaging A/B tested. System tuned.
We engineer outbound systems that source, send, and sync.
Source. Send. Sync.
Furnace runs the outbound stack end to end—data sourcing, inbox operations, and sales handoff—so prospects meet you with intent and your reps stay in motion.
List Intelligence & Enrichment
We pair Clay with custom scripts to pull, enrich, and clean every record before a single send goes live.
Quality Gate
Multi-point verification (NeverBounce + SMTP), persona scoring, and global block-list scrubs keep every contact on brief before activation.
Data Sources
Inbox Fleet & Deliverability
Every domain, inbox, and warm-up routine is managed with one goal: keep deliverability high and campaigns running without interruption.
Inbox Fleet Monitor
150% CapacityWarm-up routines, health scoring, and rotation playbooks keep campaigns steady when a mailbox dips.
Deliverability Guardrail
- SPF / DKIM / DMARC enforcement
- Custom tracking domains
- Content QA & spam heuristics
- Adaptive throttling & send windows
Campaign Automation
Sequencing keeps volume distributed across warmed inboxes, pacing sends so reputation stays healthy.
Conversion & Handoff
Replies route through the Furnace Master Inbox, get triaged, and sync straight into your systems so sales has context immediately.
Furnace Master Inbox
Every reply lands in a central master inbox where we tag outcomes, queue next steps, and hand responses back with full context.
CRM & Sales Alignment
Native integrations push qualified responses into your CRM; dashboards (rolling out soon) keep revenue teams aligned in real time.
Weekly Reviews
Weekly checkpoints surface insights, refresh targeting, and feed new tests back into Acquire and Activate.
Outbound isn't about volume — it's about control.
It's about knowing exactly who you're reaching, when they'll see you, and why they'll care.
Most agencies chase quick wins. We build machines.
Our clients don't just send campaigns — they own complete systems that move cold prospects into warm conversations with clarity and consistency.
We combine automation, CRM integration, and custom engineering to make outreach flow through your stack like it was built in-house. It's how we keep every email intentional — not wasted heat, but directed energy.
Thinking about doing it yourself?
Check out our cold email campaign checklist to make sure you are set up to succeed.
Transparent Pricing
No hidden fees. No surprises. Just results.
Custom Services
Development & Maintenance
$100/hourCustom enrichment tools, system maintenance, and development work outside of email campaigns
Data Enrichment Services
Pricing depends on data source costs • $500 minimum for standalone enrichment
Website Traffic
Monthly pricing tiers based on number of identified visitors
Email Campaign Plans
Bronze Plan
$1,000/month• 20 sending inboxes
• 10 standby inboxes (50% backup)
• BYOL (Bring Your Own Leads)
Additional inboxes: $25/month each
Silver Plan
$1,500/month• 30 sending inboxes
• 15 standby inboxes (50% backup)
• Source and basic enrichment
Additional inboxes: $50/month each
Gold Plan
$2,000/month• 40 sending inboxes
• 20 standby inboxes (50% backup)
• Deep enrichment
Additional inboxes: $75/month each
Add-ons
Website traffic campaign included at no extra cost when both email and traffic services are active.
Let's build your outbound the right way.
Schedule a quick call — we'll show you how Furnace systems turn cold outreach into predictable opportunity flow.