Case studies · Operations Stack Design
A specialized professional services team launching a new firm needed a CRM, phone, invoicing, and payroll that talked to each other automatically — no manual re-keying, no enterprise pricing. Three of the seven tools came free.
No double entry between phone, CRM, invoice, and payroll — every client interaction is recorded exactly once, in whichever tool it started, and everything downstream updates on its own.
The founding team runs the stack day-to-day — entering the occasional manual contact, sending invoices, running payroll. Neuralogic doesn’t operate it going forward; we come back only when one of the upgrade triggers below actually fires.
This is what process-first sequencing looks like when the process is “start a firm,” not “fix a 40-person shop.” The mapping still comes before the tools — there just isn’t an existing broken workflow to untangle first.
A specialized professional services team was launching a new business and needed to operate professionally from the first client conversation — with a connected CRM, a business phone that logged calls automatically, integrated email and calendar, clean invoicing, and payroll. The goal was to close clients and manage engagements without the operational drag of stitching things together manually every day.
The standard problem for businesses at this stage is a forced choice: enterprise platforms that handle the integrations well are priced for enterprise buyers, while the affordable options require managing data across disconnected tools — email here, spreadsheet there, phone call notes somewhere else. Both paths cost more than they should. The first in dollars, the second in time and errors.
The explicit brief: minimize monthly software cost, but do not accept a setup that requires manual data entry between systems. Every client interaction should flow through a single source of truth without re-keying.
Neuralogic mapped the operational requirements before selecting any tool. The non-negotiables were: a CRM that serves as the single record for all client-facing activity, a business phone with automatic call logging, integrated email and calendar, invoicing with automatic bank reconciliation, and payroll. Every tool selected had to connect to at least one other tool natively — no middleware, no Zapier, no custom connectors that break when either platform updates.
The design principle was to treat HubSpot Free as the hub and select every other tool based on whether it had a native, direct integration with HubSpot. This constraint eliminated a large number of otherwise reasonable options and identified a seven-tool set where data flows automatically between all of them.
| Category | Tool | Integrates with | Cost |
|---|---|---|---|
| CRM & pipeline | HubSpot Free | OpenPhone, Google Workspace, Apollo, QuickBooks — all native | $0 / mo |
| Prospect research | Apollo.io (free tier) | HubSpot (manual entry of repliers only) | $0 / mo |
| Business phone | OpenPhone Business | HubSpot — native call log + AI summaries per contact | $23 / mo |
| Email & calendar | Google Workspace | HubSpot — Gmail + Calendar two-way sync, native | $10 / mo |
| Banking | Mercury | QuickBooks — native bank feed; built-in invoicing via Stripe rails | $0 / mo |
| Accounting | QuickBooks Online | Mercury (bank feed) + Gusto (payroll journal) — both native | $25 / mo |
| Payroll | Gusto | QuickBooks — journal entry sync, native, same-day | $49+ / mo |
Gusto base rate $49/mo + $6 per employee per month. Three of seven tools are free. Paid tools total $58/mo without payroll; $107+/mo with Gusto running payroll for one employee.
HubSpot Free connects natively to Google Workspace, OpenPhone, QuickBooks, and Apollo with no middleware. Salesforce Starter lacks AppExchange at that tier, meaning no QuickBooks connector without a paid plan. HubSpot delivers all required integrations at $0, with a 1,000-contact free limit that comfortably covers early-stage pipeline volume.
Mercury invoices clients directly; card and ACH payments run on Mercury’s built-in Stripe rails (2.9% + 30¢ for cards, $0 for ACH). The Mercury bank feed syncs natively to QuickBooks, eliminating both a standalone Stripe account and the connector that would be needed to link it. QuickBooks Payments charges 1% uncapped on ACH — Mercury ACH is free.
Apollo’s free tier caps exports at 10 contacts per month. At target outbound reply rates (~2–3 repliers per week), only confirmed responders get hand-entered into HubSpot — keeping HubSpot’s contact count well under the 1,000-contact free limit. The upgrade trigger: if reply rate exceeds 3% at Day 30–45, Apollo Basic ($49/mo) unlocks native HubSpot sync and eliminates manual entry.
OpenPhone Business is the only option in its price tier with native HubSpot call logging and AI-generated call summaries. Calls placed or received automatically create a log against the HubSpot contact record with a summary attached. RingCentral’s HubSpot integration only works on paid HubSpot tiers. Google Voice has no HubSpot integration.
HubSpot Free includes a built-in meeting scheduler — one personal booking link, two-way Google Calendar sync, and auto-creation of the contact record with the meeting logged in HubSpot. This covers discovery calls without adding cost. Calendly Standard ($10/mo) is added only when a second distinct booking type is needed (e.g., separate links for a 30-minute discovery call vs. a 90-minute process health check).
The stack is designed around one outcome: zero manual reconciliation between systems. Every client interaction from first email to paid invoice moves through HubSpot without re-keying.
The team launched with a professional, fully connected operations stack at $107 per month — a monthly software cost lower than a single client dinner, with the same data hygiene a much larger firm would spend significantly more to achieve.
“[Client quote — to be added]”
Each upgrade has a defined trigger — spend increases only when volume or workflow complexity warrants it.
| Tool | Cost | What it adds | Trigger |
|---|---|---|---|
| Apollo Basic | +$49/mo | Native HubSpot sync, LinkedIn sequence steps, higher export volume | Reply rate ≥ 3% at Day 30–45 |
| Calendly Standard | +$10/mo | Multiple booking types (discovery, health check, partner intro) | Need a second distinct event type beyond HubSpot Meetings |
| Lemlist | +$59/mo | Personalized images/video in email, LinkedIn + direct mail in sequences | Volume justifies dedicated multichannel outreach beyond Apollo |
The outcome follows directly from starting with the integration constraint. Most tool selection processes start with features and price — the question is “what can this tool do and what does it cost?” The more useful constraint is “does this tool connect to the hub natively, without middleware?” Applying that filter first eliminated the options that would have required a connector subscription or broken on the next platform update, and identified the set that actually flows together.
The free tier strategy is also deliberately conservative. Each free tool has a defined trigger for when the paid upgrade becomes warranted — no preemptive spending on capacity the business hasn’t yet needed. A startup’s biggest ops risk isn’t paying for the wrong tier of a tool; it’s building a workflow that depends on manual data entry and then scaling that workflow before fixing it.
This build is now a packaged offering — see New Business Launch if you’re starting a business and want the same treatment.
We map the workflow requirements first, then select tools that connect natively and upgrade only when volume warrants it. Book a free 30-minute discovery call.
Book a discovery call ← All case studies