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GTM AI agents you own. Not an agency you rent.

Most of what's sold as a "GTM AI agency" in Australia is a retainer wrapped around rented tools. We build the other thing: a go-to-market agent installed in your own tenancy — research, verified leads, outreach drafted in your voice, a human approving every send. When we walk away, the engine stays.

Drafts-only outbound Human gate on every send Installed in your tenancy No lock-in

The short answer

TL;DR: A GTM AI agent is an AI system that does go-to-market work end to end — it watches for buying signals, verifies leads, drafts outreach in your voice and logs every action, with a human approving anything before it sends. The distinction that matters is ownership: an owned GTM agent is installed in your own tenancy and stays with you, where agency retainers and SaaS stacks leave when the invoices stop. Tech Horizon Labs builds and operates owned GTM agents — ours is called Theo — for Australian businesses.

What a GTM AI agent is

A GTM AI agent is software built on frontier language models that runs the repeatable work of go-to-market as governed, logged actions: market research, lead identification and verification, outreach drafting, proposal assembly, reporting. Not a chat window. Not a template sequencer with an AI badge on it.

The test is simple. Can it take a raw signal — a tender posted, a director change, a review landing — through research, checks and a finished draft without a person driving every click? And can you read a log of exactly what it did and why? If yes, it's an agent. If a person is doing the thinking between every step, it's a tool with good marketing.

The second half of the definition is the part that determines whether it was worth buying: who owns it. An agent that lives in a vendor's platform, or inside an agency's internal stack, is capability you're renting. An owned GTM agent lives in your tenancy, works through your real email identity, writes to your CRM, and stays — fully documented — if the relationship ends. We've written a long-form explainer on the distinction if you want the full argument.

How an owned GTM agent actually runs

Every piece of work Theo does follows the same six-step pattern, and every step lands in the log. A signal comes in. The agent verifies it against multiple sources. Guards check fit before a word is written. It drafts, in your voice, from the research it just did. Then it stops.

theo · one run, end to end
signaldirector change filed · QLD engineering firm
verifycontact confirmed · 3 sources agree
guardICP fit · not a current client · proceed
draftoutreach drafted in your voice → review queue
humanyou read it · edit two words · press send
logevery step recorded · append-only · yours

The human gate is the point, not a limitation. Nothing sends without a person reading it and pressing send — enforced in the tooling, not promised in a contract. Measured honestly, precision beats volume: one client campaign booked 3 meetings from its first 50 emails — small, verified, personalised batches from your real sending identity.

See the full Theo infrastructure page →

The three ways to buy GTM AI

To be fair to the alternatives: SDR agencies deliver labour, and Apollo- and Clay-style platforms are genuinely good at data and workflow. The question is who operates the machine, and who keeps it when the engagement ends.

SDR agency Data/sequencer stack (Apollo/Clay-style) Owned GTM agent (Theo — what we build)
Who owns the system The agency. You buy outcomes; the process and tooling stay theirs. The vendor. You licence seats on their platform. You. Installed in your tenancy; agents, prompts and playbooks are handed over.
Voice quality Depends on the rep assigned to you; templated at volume. Merge-field personalisation; the writing is whatever you build. Drafted from real research, in your voice — and you edit it before it sends.
Human gate before send Not per-message — sending on your behalf is the service. Sequences send on schedule once switched on. Structural. Drafts-only outbound; a person approves every message.
Data ownership Lists, replies and learnings often live in the agency's stack. Your data sits in the vendor's platform; you export what you can on exit. Your CRM, your inboxes, your run log. Nothing to export — it never left.
Lock-in Monthly retainer, commonly with a minimum term. Per-seat subscriptions; leaving breaks the workflows built on them. None. Fixed-priced phases; cancel and the system keeps running.
Cost shape Retainer for as long as it runs. Subscriptions plus the staff time to operate the stack. Fixed-priced build (from A$5,000 per phase), then optional flat-rate operation (A$2,000/month).

What the market data says

The direction isn't in question. Salesforce's latest State of Sales research — a survey of more than 4,000 sales professionals — found top-performing sellers are 1.7 times more likely than underperformers to use prospecting AI agents for outreach (Salesforce, State of Sales). McKinsey's 2025 State of AI survey puts 62 per cent of organisations at least experimenting with AI agents (McKinsey, The State of AI).

The follow-through is the problem. Gartner predicts over 40 per cent of agentic AI projects will be cancelled by the end of 2027 — escalating costs, unclear business value, inadequate risk controls (Gartner, June 2025). Those three failure causes are exactly what ownership, fixed-priced gates and an audit log are for.

What it costs

Published, like everything we sell. Block One — discovery across your systems, a working pilot, and a sequenced roadmap with every build phase fixed-priced before it starts — is A$8,000. Install phases are from A$5,000 each, approved one gate at a time. Ongoing operation under the Partner Tier is A$2,000/month, month-to-month, 30 days' notice. All + GST. The full ladder, including the entry-level Get Found Sprint, is on the pricing page.

Questions we actually get

What is a GTM AI agent?

A GTM AI agent is an AI system that does go-to-market work end to end: it watches for buying signals, verifies leads, drafts outreach in your voice, assembles proposals and reports, and logs every action it takes. A person stays in the loop — nothing sends without human approval. The distinction that matters is ownership: an owned GTM agent is installed in your own tenancy and stays with you, where agency retainers and SaaS stacks leave when the invoices stop.

How is this different from Clay or Apollo?

Clay and Apollo are good tools — data enrichment and sequencing, respectively — but they are platforms you operate. Someone on your team still wires them together, writes the copy, polices what goes out, and pays per seat, and your workflows live inside the vendor's product. An owned GTM agent is the operator: one governed system that runs research, verification, drafting and reporting inside your own tenancy, with the prompts, playbooks and logs handed over to you.

Does it send emails on its own?

No. All outbound is drafts-only: the agent researches, verifies and drafts, then queues the message for a person to review. Every draft is read by a human before send, and the human presses send. That gate is enforced in the tooling, not just promised in the contract.

Do we own it?

Yes. The agent is installed into your tenancy — your email, your CRM, your databases. The agents, prompts, playbooks and the append-only run log are yours. If we part ways, the system keeps running and the full history stays with you. Nothing is rented back to you.

What does it cost?

The ladder is published: Block One (discovery, a working pilot, and a fixed-priced roadmap) is A$8,000; install phases are fixed-priced from A$5,000 each; ongoing operation under the Partner Tier is A$2,000/month, month-to-month with 30 days' notice. All prices + GST. Full detail is on the pricing page.

Further reading

What is a GTM AI agent? — the long-form explainer → Theo — the infrastructure page → Published pricing →

See whether it fits before you spend anything.

Twenty minutes, no deck, no obligation. We'll tell you plainly whether a GTM agent is the right build for your business — or whether the honest answer is something smaller.

Book the free pre-discovery call →
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