[GTM Engineering on HubSpot]

We build the revenue system your growth needs.
You own it from day one.

You have customers and bigger plans, and Selleris is a GTM engineering agency that builds the revenue system to match. For B2B SaaS and tech-enabled SMBs with mid-market ambitions, we connect data, AI agents, automation and reporting in HubSpot across demand generation, prospecting, sales, onboarding, retention and expansion.

That system is Selleris Revenue Loop, our Build & Improve program. We design and implement the capabilities your growth needs, then improve them as your priorities evolve. Your team runs it.
Get your free diagnostic
The diagnostic shows what each month of waiting costs you. Fixed price agreed before we start. No upfront Selleris delivery fee. No result, no invoice. You keep what we build in the diagnostic, whatever you decide.

HubSpot Solutions Partner and Microsoft partner. 100% of licenses in your name, not ours.

42
people in our engineering team
Partner
HubSpot Solutions Partner
100%
of licenses in your name, not ours
[Who this is for]

You have a growth target.
Your revenue system needs to keep up.

You have customers and bigger plans. But missed opportunities, stalled deals and gaps in onboarding or account growth keep getting in the way. Whether you lead sales yourself or have an established team, those gaps cost time and money.

Selleris Revenue Loop helps you tackle the right problem first. We design, build and improve your revenue system in HubSpot, so you do not have to piece it together yourself. You own it. Your team runs it.
[The Architecture]

Ownership isn't a feature. It's the architecture.

Whether you already run HubSpot or create a free account in your name, the work happens in your account: everything Selleris builds there during the Free Revenue Diagnostic and the proof of concept is yours before any payment, and stays yours if you decide not to continue.

Your data.

Your revenue data stays in systems you control, with HubSpot at the center. We connect the platforms needed for the agreed scope. Your access does not depend on ongoing Selleris services.

Your playbooks.

Documented in your workspace. Every sequence, score, and decision rule, written where your team can read it, not locked in our heads.

Your agents.

Native agents run in your HubSpot account. Where custom capabilities are needed, we deploy them in your Azure tenant. Agents prepare work first; autonomous actions require explicit permission, with exceptions handed to your team.

What we engineer.

Foundation
Data
Business context, data and scoring

Your market, buyers and use cases mapped to the agreed lead and customer base. Enrichment, segmentation and explainable scoring help your team prioritize prospects and understand existing accounts.

Demand
AEO
Answer Engine Optimization

Research and content built around the questions your buyers ask. Definitions, comparisons and evidence make your expertise easier to evaluate, with AI visibility tracked separately from leads and revenue.

Identification
Signals
Buying signals and visitor identification

Identify visiting companies where data is available and connect website activity with relevant account signals in HubSpot. Assess fit, context and timing before deciding the next action.

Prospecting
AI agents
Account research and signal-based outreach

Agents research accounts, prepare personalized outreach and route replies with context. Sending is enabled only within agreed permissions, with exceptions passed to your team.

Sales
AI agents
Deal preparation and follow-up

Agents prepare discovery, meeting briefs and follow-ups using SPICED by Winning by Design. Customer needs, decision criteria and next steps stay connected as the deal progresses.

Success
AI agents
Onboarding and customer health

Carry sales commitments into onboarding with clear owners and milestones. Connect adoption, support history and value evidence to surface delays and retention risks for your team to review.

Expansion
AI agents
Renewal and expansion opportunities

Bring together usage signals, changing customer needs and renewal dates. Agents prepare account reviews and next actions, with commercial decisions and exceptions routed to your team.

RevOps
Reporting
Revenue reporting you can act on

Connect pipeline, revenue, onboarding, retention and expansion in reports your team can use. Keep activity, observed effects and forecasts distinct, and use the findings to prioritize Improve work.

Selleris Revenue Loop builds the whole revenue system on HubSpot, in accounts you own, and is paid per verified result. The diagnostic defines your initial scope; further work is agreed separately.
[Proof]

What clients say about our CRM engineering work.

"They are nice people, and they know what they are doing, with structured approaches, great communication, and technical expertise."

Smiling bald man with a beard wearing a buttoned-up shirt, standing against a plain wall.
Jens Stoklund
Strategic Business Developer at Conversio

"Selleris people are creative and have a solution even for difficult cases."

Man with short dark hair and beard wearing a black t-shirt and a conference lanyard is speaking with a headset microphone and gesturing with his hands.
Dr. Dmitry Koplovich
CEO at Meteoblue
5
+ years
Average client relationship
Excellent
rating on Trustpilot

"They understand the platform, meet deadlines, and focus on results."

Smiling man with glasses, short dark hair, and wearing a grey sweater over a white collared shirt against a plain light background.
Raphael Schönen
Operations Manager at Linxys

"Our platform today is even better, more widely implemented, and generally more valued by the organization."

Smiling man with short brown hair and light beard wearing a light blue checkered shirt in an office setting.
Søren Collstrup
COO at Arnsbo Group
Trustpilot
[Project experience]

CRM engineering in practice. Direct and partner delivery.

Revenue platform for a multinational brand
Built for the local operations of a global company: deals, teams, and approvals in one system of record.
Legacy CRM migration
A SuiteCRM implementation migrated to a modern CRM platform, including deals, contacts and reporting.
One revenue engine, many companies
Multi-company architecture: separate brands, shared pipeline logic, per-company data isolation, consolidated reporting.
One source of MRR truth
Recurring-revenue metrics engineered into the CRM: MRR, churn, and expansion visible to leadership, finance, and sales in the same place.
Signal-driven campaigns
CRM events trigger campaigns across digital channels and direct mail: one audience logic, results landing back in the system.
Recurring billing automation
Recurring deals, renewals, and invoicing automated inside the revenue platform.
Service signals in the revenue engine
A helpdesk built into the CRM: support conversations become churn and expansion signals the revenue team can act on.
Click-to-close attribution
End-to-end tracking from ad click to closed deal. Marketing spend answers to revenue, not to traffic dashboards.
[FAQs]

Frequently asked questions.

GTM engineering, Build & Improve, costs and ownership. What to know before we start.

What is GTM engineering?
GTM engineering vs RevOps: what's the difference?
What is a GTM engineer, and should we hire one?
What is answer engine optimization (AEO) for B2B software companies?
What is an AI SDR, and is Selleris one?
How much does Selleris Revenue Loop cost?
Why HubSpot?
What tools and systems do you integrate with?

How to buy this.

Step 1
Free
Book the Free Revenue Diagnostic

No fee, no obligation. Bring your growth target; we sign an NDA and arrange the data and access the diagnostic needs.

Step 2
10 days
Get the plan, its forecast value and one fixed price

Ten calendar days after your data and access are ready: the priority constraint, what leaving it costs you each month, the proposed results and one fixed total price, side by side.

Step 3
Your call
Say yes to one initial Build, or take the findings and stop

One recommended solution, not a menu. The proposal is valid for 30 calendar days; signing reserves your team and start window without an advance.

Step 4
Per result
Pay per verified result

No upfront Selleris delivery fee, no automatic retainer. Each result is checked against criteria agreed before work starts: no result, no invoice. Software and cloud costs go directly to providers, with zero markup.

Already on HubSpot? We work in your account through official partner access, under NDA.
Not on HubSpot yet? You create a free account in your name and we set it up. Either way, the system is yours from day one.
Line drawing of a globe showing simplified continents and latitude and longitude lines.
[The Diagnostic]

Bring your growth target.
Leave with a plan and one fixed price.

Get your free diagnostic
Ten calendar days after your data and access are ready: the plan, its forecast value and one fixed price. The diagnostic shows what each month of waiting costs you.

From you: two conversations, your data under NDA, and the people who will run the system. Everything else is on us.

No Selleris fee, no obligation.