Inbound and outbound marketing in one system. Not four vendors.
Your website, your content and your cold outreach, run by one team on one plan. Buyers find you. Buyers hear from you. $1,995/month.
Free audit. You keep the report either way. Nothing goes out without your OK.
- Your site turns visits into leads.
- You show up on Google and in AI answers.
- Your content lands where buyers already scroll.
- We build the list, warmest data first.
- 5,000+ cold emails a month, plus LinkedIn DMs.
- You approve every message before it sends.
LinkedIn acceptance rate
LinkedIn reply rate
cold emails sent a month
first-page keyword rankings
YOY website traffic growth
more leads in 6 months
Client results across UnderdogOS
- The problem
Four vendors. Four reports. Zero outbound.
You hired a web guy. Then an SEO shop. Then someone for content. Each one sends a report. None of them read each other’s. And nobody is going after the buyers who don’t know you exist yet. So you wait, and you manage four vendors while you do it.
SEO shop: Your monthly report is attached.
Web guy: Can we push that update to next week?
Outbound: Nobody’s doing it.
Four logins. Four invoices. Still waiting for the phone to ring.
Inbound without outbound is waiting. Outbound without a site that closes is wasted. You need both, run as one system.
- The three pillars
Three pillars. One team. One price.
Each pillar makes the other two work harder. All three are included in UnderdogOS for $1,995/month. Want ads too? UnderdogOS+ is $2,995/month.
Cold Outreach.
5,000+ cold emails a month across multiple mailboxes, plus LinkedIn DMs. We build the list and write the copy.
Website.
CRO, SEO and AEO. Your site turns visits into leads, ranks on Google and shows up in AI answers.
Thought Leadership.
Content that keeps your name in front of buyers, on the platforms where they already spend time.
Why not run it yourself?
Because it only works if it runs every day. Most teams start strong, get busy and stop. We built multiple seven-figure businesses on this system, and we keep up with every change so you don’t have to.
- How it works together
One buyer. Three touches. Zero handoffs.
Here’s what happens when one team runs all three pillars. See how our cold outreach works →
Outbound opens the door.
A short cold email and a LinkedIn DM reach buyers who weren't looking yet. That's most of them.
Your site closes it.
The buyer checks you out. CRO, SEO and AEO make sure what they find turns into a lead.
Content keeps you close.
Not ready today? Your content keeps showing up where they scroll, so you're the name they remember.
One team sees all of it.
No finger-pointing between vendors. One plan, one team, and nothing goes out without your OK.
- From our Google reviews
★★★★★
“They’ve played a major role in helping my payroll firm grow and scale, and I couldn’t be happier with the results.”
Google review
★★★★★
“We continue to see steady growth in followers, many of whom have ultimately turned into prospects and, more importantly, clients.”
Google review
★★★★★
“The team at Underdog simply delivers. If you want the best marketing bang around – look no further. Mission + team = results. They have it all.”
Google review
- Your options
Four ways to grow. Only one runs it all.
| Do it yourself | In-house hire | Four vendors | UnderdogOS | |
|---|---|---|---|---|
| Cold email and LinkedIn | More work for you | If they know how | Usually skipped | 5,000+ emails a month, plus DMs |
| Website (CRO, SEO, AEO) | When you have time | If you hire for it | One vendor | Included |
| Content where buyers are | Nights and weekends | Your hire | Another vendor | Included |
| Who you manage | Yourself | Your hire | Four vendors and four reports | One team, one plan |
| Who writes it | You | Your hire | Templates | American copywriters. You approve it. |
| What you pay | Tools plus your time | Salary, benefits and management | Four retainers | $1,995/month |
- How it starts
Three steps. Then we run all of it.
Get your free audit.
We look at your site, your outreach and your content.
Get your plan.
You keep the report whether you hire us or not. If it’s a fit, we start with your warmest data.
We run it.
Website and content work starts right away. New mailboxes warm up for 2 to 4 weeks, then outreach goes live.
- FAQ
UnderdogOS questions, answered
By Matt Vaadi, Founder, Underdog Digital · Updated October 2026
What is UnderdogOS?
UnderdogOS is Underdog Digital’s inbound and outbound marketing system for B2B companies. One team runs three pillars: Cold Outreach, Website and Thought Leadership. You get one plan instead of four vendors.
Why not just run all three pillars myself with AI tools?
AI can write a post, an email or a landing page. It can’t decide which ones matter, tell you why nobody replied, or keep all three pillars working together every week. And if you can’t tell good copy from okay copy, you can’t prompt your way there. We use the same AI tools. The difference is a team that knows what good looks like and runs the whole system for you.
How much does UnderdogOS cost?
UnderdogOS is $1,995/month with all three pillars included. List building and copywriting are part of it. Want ads too? UnderdogOS+ is $2,995/month. See the full breakdown on our pricing page.
Why run inbound and outbound marketing together?
Inbound catches buyers who are already looking. Outbound reaches the ones who aren’t looking yet, which is most of them. When a cold email lands, the buyer checks your site. That site has to close. One team running both means nothing falls through the gap between vendors.
What's included in each pillar?
Cold Outreach: a list built for you, 5,000+ cold emails a month across multiple mailboxes, LinkedIn DMs and copy from American copywriters. Website: CRO, SEO and AEO. Thought Leadership: content on the platforms where your buyers already spend time. See how our cold outreach works.
Do I approve what goes out?
Yes. Nothing goes out without your OK. American copywriters on our team write every cold email and LinkedIn message. Short, in your voice, one clear ask. You approve the copy before it sends.
Do you book meetings for us?
No. Underdog Digital does not book meetings or set appointments. When a prospect replies, the reply goes straight to you, so you or your team can take it from there in your own words. Our job is to keep the right buyers hearing from you every day.
How long does it take to see results?
Outbound moves first. New mailboxes warm up for 2 to 4 weeks, and replies can start as soon as sending does. SEO and content compound over months. We don’t promise a timeline, but we start with your warmest data to get early wins.
Who is UnderdogOS for?
UnderdogOS is for B2B companies tired of waiting on referrals and inbound alone. That includes service firms, software companies and professional services teams. Run a payroll firm or a CPA firm? See our pages for payroll companies and CPA firms.
- Your move
Stop managing vendors. Start running a system.
Get your free audit. We look at your site, your outreach and your content, and you keep the report either way.
Not ready to talk? Grade My Website. Rather call? (803) 310-2112.