AI-powered GTM experimentation
Outbound should be
an experiment, not a bet.
Test messaging angles, personas, and channels at a speed no human team can match — so you lock in message-market fit before you pour fuel on it.
Built for teams finding their GTM motion
Early-stage to scaling. Whether you’re doing founder-led sales or building out a team — if outbound feels like guessing, this is for you.
You’re closing deals and writing cold emails in the same afternoon.
We run the experiments so you can focus on closing. Test messaging across personas and verticals without splitting your attention.
You get a full outbound motion without a full-time hire.
You found something that works — but you don’t know why, or how deep it goes.
We systematically explore what’s resonating. Right persona, wrong pain point? Right angle, wrong channel? We find the edges.
You get clarity on exactly what’s converting — and where the upside still is.
Your reps are sending, but nobody knows what’s actually working.
We bring structure to the chaos. Every variant is tracked, every result feeds the next experiment.
Your team gets a playbook, not guesswork.
Your team is growing faster than your playbook.
We keep running email and LinkedIn at scale while your reps focus on the channels that need a human touch — calls, events, and field sales. They inherit a tested playbook, not tribal knowledge.
Your reps sell with conviction — grounded in messaging that’s been tested, not assumed.
From prospect to personalized outreach
Every email is grounded in real prospect research and your brand context — not templates.
Maya Chen
VP of Sales at Ridge
Recent LinkedIn post
“Excited to share that we just closed our Series B. Now it’s time to scale our outbound motion...”
persona/vp-sales.mdPain points: scaling outbound without adding headcount...
product/core.mdExperiment Outbound runs structured experiments on your behalf...
messaging/warm-v2.mdTone: warm precision. Lead with their challenge, not our features...
Receipts
How we compare
We’re not the cheapest or the fastest to set up. But if you want deep prospect research, structured experimentation, and real learning velocity — a system that gets sharper with every send — here’s how the options stack up.
Not the cheapest option. But the cost covers research, infrastructure, experimentation, and a dedicated team. Others charge separately for each — or skip them entirely.
No hiring, no onboarding, no tool setup. We bring the stack, the process, and the people. Mailbox warmup takes ~2 weeks, but we build your campaigns in parallel — so the moment infrastructure is ready, multiple campaigns go live on day one.
You share context about your product and ICP. We handle everything else — research, copy, infrastructure, iteration. You review results, not drafts.
A human reviews every campaign before it sends. AI does the heavy lifting; people make the judgment calls. You get a team, not a dashboard.
Every prospect gets individual research: LinkedIn activity, company context, role signals. Not just a job title and a merge tag.
We run structured A/B tests across messaging angles, personas, and channels simultaneously. Not one campaign at a time — dozens of variants in parallel.
Every experiment feeds the next. We know what’s working within days, not quarters. Context compounds — your system gets sharper over time.
Domain rotation, warmup, send scheduling, inbox placement monitoring. We own deliverability so you don’t have to think about it.
Volume goes up, quality stays locked. The AI + context system means prospect #5,000 gets the same research depth as prospect #5.
How it works
We build your context together
A kickoff call to map your ICP, product positioning, messaging, and voice — encoded into structured context that evolves as your product does.
- Persona definitions, pain points, and trigger events
- Messaging guidelines and tone of voice
- Context stays current — updated as your market shifts
We run structured experiments
AI researches every prospect and generates personalized campaigns. Multiple messaging variants tested simultaneously across email and LinkedIn.
- 10,000+ emails and/or 500 LinkedIn connection requests per month
- 4–8 messaging variants tested per campaign
- Human review before anything sends
You get warm replies and clarity
Qualified conversations in your inbox, plus data on what resonates — with whom, and why.
- We hand you warm replies — your team closes
- Weekly reports on what's working and why
- Full data export: contacts, enrichments, and every email generated
What’s included
Your team
Your campaigns
Your data
Your ownership
Built for quality at scale
Generic personalization gets ignored.
Deep prospect research
AI researches every prospect's LinkedIn activity, company news, hiring signals, and role context before writing a single word.
AI emails sound like AI.
Context-grounded generation
Every email is generated from your brand context — product positioning, messaging guidelines, persona definitions, and voice rules. No templates.
persona/vp-sales.md# VP of Sales Persona
Pain: scaling outbound without
adding headcount or burning list
Trigger: just raised a funding round
or announced expansion plans
Tone: direct, peer-level
You don't know what's working until you've burned through your list.
A/B testing at scale
Test 4-8 messaging variants simultaneously across different angles, personas, and value propositions. Converge on what resonates before you scale.
Winner: Bold angle
Deliverability is a full-time job.
Managed delivery infrastructure
We handle sending domains, inbox placement, suppression lists, and compliance. Your emails actually arrive.
Methodical by design
Structured workflows, versioned context, and rigorous quality checks. Every campaign is engineered — not eyeballed.
Every campaign follows a structured workflow — from prospect research to persona matching to multi-channel outreach.
Integrates with
Why we built this
This started as a Slack message to a client.
We were running outbound for a client and hit a wall. The messaging angles weren’t resonating. Setting up each campaign in Clay meant rewriting prompts from scratch. There was no way to learn from what worked and carry it forward.
So we started building — an agentic workflow with persistent memory that could assess fit, generate copy, and iterate on its own understanding of each ICP. That turned into list building. Then enrichment. Then a full workflow engine.
Experiment Outbound is that engine, available as a managed service.
Built by The Workflow Company
August 29, 2025 — the message that started itOne plan. Full engine.
Everything you need to run outbound as a continuous experiment — not a one-shot bet.
Month to month. No long-term contract.
Campaigns & copy
- Multiple campaign variants launched per week
- Fully individualized AI copywriting per contact
- Structured A/B testing with isolated results
- Sandbox testing on real contacts before launch
Strategy & reporting
- Weekly performance report and update
- Biweekly strategy sync and progress update
- Async Slack access to our team via Slack Connect
- Own your data — full data export anytime
Infrastructure
- Outbound email infrastructure and maintenance
- Deliverability monitoring and optimization
- CRM integration (Attio, HubSpot, Salesforce)
- Slack integration for human-in-the-loop review
- Custom signals support via webhooks
LinkedIn outreach, custom signal-triggered workflows, and custom enrichment available as add-ons. Let’s talk about what fits.
Frequently asked questions
About the Service
SDRs and tools give you the components — you still need to assemble the strategy, write the emails, manage deliverability, and run experiments. Experiment Outbound handles all of that as a managed service, powered by proprietary AI that tests systematically and compounds learnings across every campaign.
Upfront: a few hours to share your ICP, product context, and messaging preferences. Ongoing: a brief weekly sync to review results and refine strategy. We handle everything else — research, generation, testing, delivery, and optimization.
Week 1: context onboarding and ICP definition. Week 2: first campaigns live with 4-8 messaging variants. Weeks 3-4: iterate based on results. Ongoing: continuous experimentation with monthly strategy reviews.
We complement your team. We handle prospect research, messaging, and experimentation — your reps handle warm replies and closing. If you don’t have SDRs yet, we’re your outbound engine until you’re ready to hire.
B2B SaaS companies from Seed to Series B. Our context architecture adapts to any ICP — we learn your specific market rather than applying a generic playbook.
About AI Quality
Yes. Every campaign is reviewed by our team before it goes live. AI does the research and generation at scale — humans provide the strategic judgment and quality control.
Every email is generated from scratch using the prospect's LinkedIn activity, company context, role-specific pain points, and your brand messaging. No templates, no mail-merge fields. Each email is unique.
Every campaign runs through our Preflight Lab — a dry-run against sample prospects — before anything sends. Our team reviews the output. If something doesn’t match your voice, it gets caught before it reaches anyone’s inbox.
About Results
First campaigns go live within 2 weeks of onboarding. Initial experiment data within the first month. Most clients identify their winning messaging angles within 4-6 weeks.
That's the point of experimentation — not every angle will work, and we expect that. We iterate rapidly, testing new variants based on data from each campaign. Underperformance is signal, not failure.
Logistics
Email campaigns start at $8,000/mo, month to month. LinkedIn outreach, custom signal-triggered workflows, and custom enrichment are available as add-ons. Book a call and we'll scope it for your situation.
CRM sync with Attio, HubSpot, and Salesforce. Slack for real-time notifications and campaign approvals. We handle all sending infrastructure — you don’t need to provide any tools.
You do. At the end of every engagement, you get full CSV exports of all contacts, enrichment data, email copy, and campaign results. No lock-in.
Still have questions? Book a 30-minute call →
For your next outbound experiment.
Built from the campaigns we actually run, not the generic outbound playbook.
- Services Managed outbound services, agency models, and execution options.
- Alternatives Comparisons for teams choosing between tools, agencies, and AI SDR vendors.
- Use Cases Outbound plays for founders, lean GTM teams, and teams avoiding SDR headcount.
- Signals Outbound plays tied to funding, hiring, leadership, and tool-adoption moments.
- Growth Plays Strategic outbound plays for pipeline, playbooks, operations, and campaign learning.
- Buying Questions Candid answers to the risk, ownership, timing, and ROI questions buyers ask before choosing managed outbound.
- Outbound Diagnostics Diagnostic guides for weak reply rates, list quality, deliverability, qualified replies, and campaign postmortems.
- Outbound Engineering Systems thinking for versioned context, QA, observability, and reliable AI-assisted outbound.
- GTM Engineering GTM engineering guides for outbound infrastructure, automation, signal-driven campaigns, and AI-assisted revenue systems.
- Methods Guides to outbound experimentation, message-market fit, and GTM learning loops.
- Pricing Buying guidance, scope, and pricing pages for managed outbound.
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Managed outbound service
Experiment Outbound is a managed outbound service for B2B SaaS teams that want prospect research, campaign execution, and outbound experimentation without another tool to run.
Ready to stop guessing?
Book a strategy call. We’ll show you what Experiment Outbound would test for your ICP — no commitment.
Starts at $8,000/mo · month to month
No commitment. See a real campaign plan in 15 minutes.