Should you build or buy M&A Process Management?
M&A process management software tracks deal pipeline, due diligence checklists, secure document sharing with counterparties and post-merger integration milestones through a single acquisition and beyond. Corporate development, M&A and integration teams use it to keep a deal on schedule from first target screen through closing and the first 100 days.
Do not assume you need an M&A suite. Run pipeline, diligence tracking and integration on the work-management platform you already license, with a governed template and one owner, and buy a data room only for secure external diligence. Move to a dedicated platform when deal volume, cross-deal reporting or external permissions outgrow the general tool, as Infoblox and Progress did, and treat AI diligence tools as bounded analytical helpers with human review.
Build it, buy it, or bridge?
When building makes sense
Do not assume you need a dedicated M&A suite before checking what the tool you already license can do. Named acquirers run deal pipeline, diligence checklists and integration milestones on Smartsheet, Airtable and similar work-management tools they already pay for, and some run a double-digit number of acquisitions a year that way. Reviews of the category consistently note that spreadsheets remain the default tool for a large share of corporate development teams, which tells you the software is not the constraint most teams hit first. Build on the work-management platform you already run, with a single governed template and one clear owner, for pipeline tracking, diligence checklists and integration milestones. The limit is external access: a general tool was not built for counterparty document sharing under strict permissions, so buy a data room separately for that piece rather than trying to force it into Smartsheet.
When buying makes sense
Move to a dedicated platform once deal volume, cross-deal reporting needs or external counterparty access outgrow the general tool you started on, the way Infoblox did after its Excel, Smartsheet and Salesforce stacks began duplicating data across systems as deal volume grew. DealRoom, Midaxo and similar platforms exist for exactly that transition, and once volume is high enough, the reporting and audit-trail features earn their subscription. But go in with eyes open: the stages are the same at every acquirer, and the software encodes no proprietary strategy. Reviews on file handling and reporting suggest even buyers know they are paying largely for convenience. Treat AI diligence tools as bounded analytical helpers that still need human review, not as a reason to buy or build a bigger platform than your deal volume actually requires.
The desk read
Build-versus-buy analysis for M&A Process Management is being written. In the meantime, the framework that drives every B4 call is on the B4 Index page.
Frequently asked
Do we really need dedicated M&A software, or will Excel work?
For most acquirers, longer than you'd think. Spreadsheets remain the default tracking tool for a large share of corporate development teams, and named acquirers run governed Smartsheet or Airtable templates for years before ever buying a dedicated platform.
What actually forces a move to a dedicated platform like DealRoom?
Infoblox hit the wall this way: its Excel, Smartsheet and Salesforce stacks started duplicating data as deal volume and cross-deal reporting needs grew, and it eventually replaced that patchwork with a dedicated M&A platform.
Can a general tool like Smartsheet handle secure diligence access for counterparties?
Not well. A general work-management tool was not built for permissioned external document sharing at the level a data room provides, which is why even teams running pipeline and integration tracking on Smartsheet still buy a dedicated data room separately for that piece.
Are AI diligence tools worth adopting now?
As a bounded helper, yes, for first-pass document review and summarization on live deals. Treat the output as a first pass that still needs human review rather than a reason to skip a dedicated diligence process entirely.