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Signal key

company_type_change

Category

Structure

Source

Company Professional Network page (company type field).
The company’s entity type changed.

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When it fires

Trigger condition

company_type field value changes (for example, Privately Held → Public Company).

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Magnitude

High, entity-type shifts are rarely minor.
For the full bucket definitions used across percentage-based signals, see Magnitude buckets.

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Why it matters

Entity-type shifts are rarely minor. Moving from Privately Held to Public Company is an IPO; other transitions reflect acquisitions or restructurings. This signal underpins the ipo_signal composite.

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How to use Company Type Change Signal?

The scenario. You handle business development at a mid-market accounting firm. Your best new engagements do not come from companies shopping for accountants, they come from companies whose legal structure just changed underneath their existing accountant, creating work the incumbent was never scoped for. The goal. Detect entity-type changes among regional businesses, because each one drags a tail of tax elections, filing obligations, and advisory questions that must be answered on a deadline. The signal fires. company_type_change fires for Weller Bros. Construction, a 150-person contractor two counties over: their company type has changed from partnership to privately held corporation. What it tells you. Nobody converts a partnership to a corporation casually. The usual drivers are bringing in outside investment, preparing for a sale, succession planning between generations, or liability restructuring after a scare. Every one of those drivers means new tax elections with clocks attached, S-corp elections have filing windows, basis calculations need rebuilding, and the owners’ personal tax pictures just changed shape. A generalist bookkeeper who served the partnership fine is often out of depth the day the conversion closes. The play.
  1. Lead with the deadline, not the relationship: converted entities face time-boxed elections, and missing them costs real money.
  2. Write to the owners with one concrete, checkable item: the election window that applies to their conversion date, and what choosing wrongly costs a company their size.
  3. Offer a post-conversion review as a fixed-fee engagement, an audit of the decisions their conversion just forced, which either validates their current advisor or replaces them.
  4. Ask, gently, why they converted; the answer is your roadmap to the next engagement, sale prep means valuation work, investment means audit readiness.
Automate it. A monthly Company Signals API pull on company_type_change in your region surfaces conversions while their election windows are still open. Why it lands. Companies rarely switch accountants out of dissatisfaction. They switch when the work outgrows the incumbent overnight, and a type change is exactly that night.

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How to read it

Lifecycle event

Type changes mark major corporate milestones.

IPO trigger

Private → Public is the basis of ipo_signal.

Budget reshape

Public status changes scrutiny and spending.

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Outreach playbook

Major event. Private → Public means new budget and compliance tooling needs.

Nonprofit to For-Profit

The company changed between nonprofit and for-profit status.

Subsidiary Status Change

The company became or stopped being a subsidiary.

IPO Signal

A company went from private to public.

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