Quick Answer: Origami has a built‑in email sequencer, so you don’t just build a list of AI Engineering Leaders at Seed & Series B startups—you run the entire outreach campaign from one platform. Free plan gives you 1,000 lead‑enrichment credits (no credit card). Paid plans from $29/month include the sequencer at no extra cost; you only pay for the credits you use to find and enrich leads.

This guide assumes you already have a prospect list. If you don’t, our step‑by‑step list‑building post walks you through typing a plain‑english prompt into Origami and getting verified names, emails, phone numbers, and company details in minutes. Now let’s turn that list into replies.

Step 1: Build Your List in Origami (Recap)

Even though this is a companion post, here’s the 60‑second version so everything you need is in one place.

Go to Origami and log into the free plan.
Type a prompt like:
“AI Engineering Leaders at Seed and Series B funded startups in the United States, with names, verified emails, titles, LinkedIn profiles, and company headcount.”
Origami’s AI agent searches the live web, chains data sources, enriches contacts, and qualifies leads.
You get back a CSV‑ready list with: first name, last name, title, company, verified email, phone number, LinkedIn URL, company size, funding stage, and often tech‑stack hints (inferred from job postings, open‑source contributions, etc.).

If you already built your list while reading the parent post, open it in the Origami dashboard and jump to Step 2. If you’re starting fresh, the free 1,000 credits let you enrich 30–50 highly targeted leads right now—no credit card required.

Step 2: Refine and Qualify the List

A list of “AI Engineering Leaders” at early‑stage startups can still be noisy. Before you write a single email, spend 15 minutes scrubbing and segmenting inside Origami.

What to remove

Founders wearing an engineering hat but whose primary role is CEO/CTO with zero hands‑on AI work.
Research scientists at startups that aren’t actually shipping product (look for “Principal Researcher” or “Head of AI Research” without “Engineering” in the title—these people rarely control tool budgets).
Leads at companies with > 100 employees. Even if they’re tagged “Seed”, they’ve likely outgrown the scrappy decision‑making phase you want to catch.

How to segment

Origami’s enrichment gives you company size, funding stage, and tech‑stack clues. Use the platform to create sub‑lists:

Seed stage (< 20 employees): The AI leader is probably hands‑on, writing code, and obsessed with speed. Messages here should speak to shipping an MVP fast.
Series A/B (20–80 employees): The AI leader is now hiring a team, thinking about scaling, cost control, and evaluation frameworks. Reference infrastructure headaches.
Tech stack signals: If Origami’s data shows a company uses LangChain, LlamaIndex, or open‑source LLM monitoring, tag them. You’ll use this in your email to show you’ve done homework.

What “qualified” looks like for this audience

Titles: VP of AI / AI Engineering, Head of AI / ML Engineering, Director of AI, Staff ML Engineer (at a sub‑20‑person startup), or CTO with hands‑on AI.
Company: raised Seed, Series A, or Series B in the last 18 months, 10–80 employees.
Location: US or Canada (if you need timezone overlap for calls).
Active hiring for AI roles (another signal Origami can surface from job boards).

Aim to keep your final list between 50 and 150 carefully vetted contacts. That’s the sweet spot where personalization can still shine.

Step 3: Create the Email Sequence

With your cleaned list in Origami, you have two options for building the sequence:

Paste your own templates. Write the messages yourself, set the delays between touches (e.g., Day 1, Day 3, Day 7), and let Origami insert the personalization tokens.
Let the agent write it. Ask Origami’s AI agent to generate a personalized 3‑day email sequence for each lead, using their title, company, industry, and any tech‑stack signals. The agent crafts messages that feel custom, not like a merge‑tag blizzard. You review and edit before launching.

For this guide, I’m giving you the exact copy I’ve used to book meetings with AI Engineering Leaders at pre‑Series‑B startups. Steal it, tweak it, and make it yours.

3‑Touch Sequence (Copy‑Paste Templates)

Cadence: Day 1 (initial) → Day 3 (follow‑up, new angle) → Day 7 (breakup). All messages are 50–100 words, direct, and built for fast‑moving AI builders.

Touch 1 – Day 1

Subject: quick thought on {company_name}’s AI pipeline
Preview text: are you still stitching it together with glue code?

Hi {first_name},

I saw {company_name} raised your {series} and are shipping AI features fast. Most seed‑stage teams I talk to are hitting the same bottlenecks: prompt‑versioning chaos, LLM cost spikes, and no clean way to compare model outputs.

We built [your tool] to stop those problems before they slow down a launch.

Worth 15 minutes to show you what 3 AI‑focused Seed/Series B teams are using right now?

Best,
{your_name}

Touch 2 – Day 3 (Follow‑up from a different angle)

Subject: Re: quick thought on {company_name}’s AI pipeline

Hey {first_name},

Following up with one concrete idea. The Head of AI at [peer startup name] told me they were surprised by how many fine‑tuned models silently degrade in production. They added lightweight evals that caught a 12 % accuracy drop before it hit users.

If you’re open to it, I can share how they set that up with [your tool]. No pitch—just the architecture.

{your_name}

Touch 3 – Day 7 (Breakup)

Subject: Re: quick thought on {company_name}’s AI pipeline

{first_name},

Last one, I promise. If AI pipeline tooling isn’t a priority right now, no worries—you’re clearly heads‑down building.

If you ever want to see how other Seed/Series B AI teams are cutting inference costs by 30‑40 % and shipping evals in hours, I’m a quick email away.

Good luck with the next launch.

{your_name}

A few notes on personalization:

{company_name} and {first_name} are automatically populated by Origami from your enriched list.
{series} can be replaced with “Seed round” or “Series A” based on Origami’s funding data. If you have the exact round name, even better.
[peer startup name] should be a real, non‑competing AI startup you’ve talked to. If you don’t have one, replace the paragraph in Touch 2 with a genuine observation about the recipient’s tech stack—something Origami’s enrichment might have hinted at (e.g., “I noticed you’re using LlamaIndex; we often see teams combining that with …”).
Every message stays under 100 words. AI leaders at early‑stage startups read on mobile and will delete a wall of text.

Step 4: Send the Sequence Directly from Origami

This is where the “built‑in” part matters. You don’t export a CSV, upload it to another tool, and hope the formatting survives. You launch from the same dashboard where you built the list.

Inside Origami, select your refined prospect list.
Open the Email sequencer. Add your three touches, set the delay between each (Day 1, Day 3, Day 7—or whatever cadence you prefer).
Paste your templates (or let the AI agent generate them). Preview how they look with a real lead’s data.
Hit Launch. Origami starts sending immediately. You can pause, edit live, or add a step at any time.

What happens after you hit send

All tracking lives inside Origami: opens, clicks, and replies are shown right next to each contact, along with their enriched profile (title, company, tech‑stack clues). You know why you reached out without opening another tab.
Automatic un‑enrollment: If someone replies—even a “not interested”—Origami removes them from the sequence. No sending a breakup email after a booked meeting.
60‑second follow‑up: When a lead replies, you see their entire profile in the same view. You can respond personally, knowing their stage, team size, and context.
Sequencer is free on all paid plans. You only pay for the credits used to enrich leads. The sending, tracking, and sequencing cost nothing extra.

What response rate to expect

For this audience—AI Engineering Leaders at Seed & Series B startups—a well‑targeted, 3‑touch cold email campaign typically sees:

40–60 % open rate if your domain is warmed and subject lines reference their company.
3–5 % reply rate, with about half of those being positive or neutral.
1–2 % meeting‑qualified rate (a booked call) on a cold list. These numbers climb when you layer in LinkedIn connections or preceding engagement.

If your reply rate drops below 2 %, the problem is usually one of two things: list quality or messaging. In Origami, you can easily test both without switching tools.

When to iterate on messaging vs. iterate on the list

Messaging pivot: If you’re getting opens but no replies, your subject lines work but the body doesn’t land. Use Origami’s sequencer to clone the campaign, tweak Touch 1’s body, and split‑test by sending to half your list.
List pivot: If opens are below 30 %, your emails are bouncing or landing in spam. Double‑check that your list is built from verified emails (Origami verifies every address). Then audit fit—are you emailing true decision‑makers? An ML team lead at a 100‑person company is not the same buyer as a Staff AI Engineer at a 12‑person startup. Re‑segment using Origami’s filters and try again.

Rotate Your Device

How to Run a Cold Email Campaign Targeting AI Engineering Leaders at Seed & Series B Startups in 2026