[AI Agents]

AI agent development,
in your own tenant.

Selleris builds custom AI agents for B2B SaaS and tech-enabled companies: 42 engineers, HubSpot Breeze where native fits, Azure AI Foundry in your own tenant where it doesn't. Revenue agents wired into your CRM, business agents wired into your operations, every account and license registered in your name.
Start with a free diagnostic
The diagnostic is free, takes ten days, and ends with a day-90 pipeline floor computed from your data.
[The Tenant]

What custom AI agent development means, done right

Custom AI agent development is building agents for your workflows on your infrastructure: prospecting, deal work, customer success, and back-office processes, running under your SSO, your audit logs, and your data residency, not inside a vendor's black box.
Most agent vendors sell you a seat in their cloud. We build on Azure AI Foundry inside your tenant, and on HubSpot Breeze inside your portal, so the agents survive any vendor decision, including ours.
Rented agents are features. Owned agents are assets.
The economics behind it are in the GTM engineering manifesto.
[What We Build]

Agents for revenue, and beyond.

Outreach agents

Signal-triggered sequences drafted, personalized, and routed by agents under your brand; your team closes.

Deal agents

Follow-ups, meeting prep, and next steps drafted inside HubSpot, Breeze native or custom. Deals stop dying of forgetfulness.

Customer success and upsell agents

Onboarding, health signals, churn alerts, and renewal plays run by agents; warm handoffs to humans.

Business process agents

Quotes, invoicing, reporting, and internal copilots on Azure AI Foundry: agents beyond the revenue floor.

Orchestration and integrations

Agents wired to your CRM, ERP, and data layer through one integration spine, not a zoo of webhooks.

Guardrails and evaluation

Approval gates, eval suites, logging, and cost control, so agents ship with brakes, not just gas.

Two runtimes, one team

Where HubSpot's native Breeze agents fit, we configure them inside your portal. Where they end, we build custom on Azure AI Foundry in your own tenant: your SSO, your audit logs, your data residency, consumption billed by Microsoft directly to you. One team across both, no vendor seams.

Running as: Breeze inside your HubSpot, custom agents on Azure AI Foundry inside your tenant.
See Azure Management
1 tenant
yours: SSO, audit logs, data residency
Breeze agents configured in your portal
Custom agents built on Azure AI Foundry
Run under Azure Management plans, from $249 a year
42
engineers and architects building revenue systems since 2005: from the first CRMs to AI agents in your own cloud
4
years average client relationship. Free to leave any month; most stay for years.
100%
of licenses, accounts, and data registered in your name from day one.
[The Practice]

AI agent development, priced in the open.

Standalone agent work is scoped from the free ten-day diagnostic and priced as a fixed project: agents, integrations, guardrails, and documentation, never open-ended hours.

Inside the Revenue Loop, revenue agents ship as layers of the $55,000 six-month program with the day-90 pipeline floor in the contract. Ongoing runtime is covered by Azure Management plans, published from $249 a year, with Azure consumption billed by Microsoft directly to you.

We are a HubSpot and Microsoft Solutions Partner, and every agent ships documented in the Glass Box, registered in your name from day one.
[The Questions]

AI agents, answered straight.

The questions teams ask before they commission custom agents. If yours is missing, bring it to the diagnostic call.

What is an AI agent?
How do you build a custom AI agent?
Whose cloud do the agents run in?
Breeze agents or custom agents: which do we need?
Are AI agents just chatbots?
What does AI agent development cost with Selleris?
Line drawing of a globe showing simplified continents and latitude and longitude lines.
[The Diagnostic]

Bring your growth target. Leave with the math.

Get the free diagnostic
Ten days. No charge.

You tell us the number your plan depends on; we turn it into the chain that has to produce it: target growth, new ARR needed, qualified pipeline required, and the exact floor we would put in a contract.

If we're not a fit, we say so straight, and the math is still yours to keep.