GrowFlex
GTM engineering services

GTM engineering from people who know both GTM and engineering. We build connected, orchestrated systems that get repeatable results with AI.

Productized services, so the build is fast. The right tools for the job, tailored to your operations. Performance, cost and visibility tuned for better decisions.

Get a Stack Audit

Repos, accounts, config and data are yours; three GrowFlex-operated tools, listed with their exit terms.

How we deliver it

Software engineers with deep GTM experience.

Deep expertise in GTM architecture, engineering and applied AI. Our services are productized: modular systems, production tested, cost-optimized and customized to your business, so builds are fast and you see results with less lead time.

We build GTM architecture for

  • ICP and signal-based audience targeting. Including the hard signals to listen for.
  • Full-funnel engagement and attribution.
  • Orchestrated messaging, personalization and activation.
  • AI where reasoning is needed, deterministic rules where it's not.
  • Reporting, monitoring and feedback loops.

All of it optimized for performance and CAC, including data-provider and LLM spend.

What we build

Four parts of one GTM system.

Each part lands in the same app, in your accounts. We start where it hurts and build to your priorities.

01

Audience

Who to talk to, and why now.

  • ICP and persona definitions
  • Internal and external signals
  • Prospecting and enrichment data, optimized for spend
  • Web research and social listening
  • CRM hygiene and complex company-hierarchy modeling
  • Account- and signal-based targeting

Service lines: Audiences & Signals

02

Engagement

Every touch tracked, and in your system of record.

  • Tracking across web, mobile, activation tools and product
  • A complete event schema, implemented end to end
  • Attribution solutions for every touchpoint
  • Available in your CRM, CDP or system of record

Service lines: Stack design · Product-led activation

03

Activation

The right play for every account, sales-led or product-led.

  • Outbound email and LinkedIn, with a human approving every batch
  • Inbound orchestration, qualification and routing
  • Lifecycle plays: pursue, expand, win back
  • Personalized messaging, pluggable where it's needed
  • A sales-led and product-led mix

Service lines: Sales-led activation · Product-led activation

04

Orchestration

Tested, monitored and production-ready.

  • Custom API, MCP tools and sub-agents for your team and its agents
  • Webhooks, events and add-ons that fill the gaps in and between tools
  • Any playbook as a plugin, in a skills marketplace your team runs from Claude

Service lines: AI for GTM · Full-stack product engineering

Proof

Production grade tools.

Used in GTM systems we've built for B2B SaaS clients running in production every day.

Every company in the CRM is kept graded under a versioned rule set, re-checked by a nightly sweep.

Every new contact is classified and graded shortly after it is created.

Target-account stage is computed in real time from deals and meetings, not maintained by hand.

The sales team installs and runs its playbooks as skills from a private marketplace in Claude.

Read how it works

How an engagement runs

Scoped for your priorities and budget.

Every engagement starts with the Stack Audit — a thorough review of your practices, tech stack and priorities.

  1. 01

    Stack Audit

    1 week, fixed scope. We guide you through a review of your practices, tech stack and priorities: every job each current tool does, where they overlap, and a CRM health sample. You receive the written audit, a one-hour readout, a fixed-fee proposal for the next step.

  2. 02

    Recommendations and plan

    A detailed set of recommendations, covering work in your tools, commercial products and custom glue. Your biggest pain points and opportunities are planned first, within your budget, each as an entry offer with a fixed scope, a timeline and a day-one deliverable, priced as a fixed fee.

  3. 03

    Build against real volume

    We build in your accounts, provisioning your tools, against your real records. Every change is previewed as a dry-run plan before it is applied, a human approves every batch, and new rules run in shadow before they go live.

  4. 04

    Handover, or stay embedded

    On a project, the agreed item is handed over with its runbook and your team runs it with the skills. Embedded, we stay on as your part-time GTM engineer until you hire a team to operate it, hire an in-house engineer to extend it, or keep us on.

The person who scopes the work builds it. There is no handoff to an implementation team.

Who we work with

Who we build for.

Bootstrapped and founder-funded companies, where the founder still touches the CRM or a lean team with big goals.

Not a fit if

  • You want software to buy and run yourselves, with no engineer involved
  • You want outbound run for you (sending stays with your team)
  • Your CRM is neither HubSpot nor Attio
  • You are looking for a strategy deck

Start with the Stack Audit.

It takes 1 week. You receive the written audit, a one-hour readout, a fixed-fee proposal for the next step. If we are not the answer, we will say so.

Get a Stack Audit

Not ready for the audit? The intro call is 30 minutes, no charge, with the person who would build it.