The "Buy-Build-Blend" strategy describes how most companies actually make decisions today, even if they rarely refer to it by that name. Almost no one buys only off-the-shelf software, and hardly anyone builds everything in-house.
"Buy" means licensing off-the-shelf software; "Build" means developing your own software; "Blend" means a combination of the two. Blend is the norm in industry and retail. The dividing line runs along the individual process: generic processes you buy in, processes with a real competitive advantage you build yourself.
of spending on enterprise software goes into combinations of buying, building, and connecting. Pure buy or pure build remains the exception.
Gartner via TECHSY, May 2026
What the "Buy-Build-Blend" Strategy Actually Means
"Buy" means purchasing and licensing off-the-shelf software, usually as a SaaS subscription. "Build" means having a solution developed from scratch. "Blend" means combining both approaches: using SaaS tools for standard processes and writing your own code for processes that truly set your company apart (TECHSY, 05/2026).
| Model | Suitable for | A typical example | Main Risk |
|---|---|---|---|
| Buy | generic processes without differentiation | Accounting, Time Tracking, Standard CRM | Licensing costs increase as the number of users grows |
| Build | Processes That Make a Difference | Custom pricing logic, production control | Fixed Costs for Development and Operations |
| Blend | almost all real-world software environments | Standard ERP plus a custom production application | Interfaces must be maintained on an ongoing basis |
The rule of thumb behind this is easy to state, even if putting it into practice takes work. “Buy” is appropriate for generic processes that follow the same pattern across industries. “Build” is worthwhile for processes that truly set a company apart (Exagon). Those who fail to draw this line either buy too much customization for standard processes or too little customization for their own strengths.
A Real-World Calculation Example
A case study of a B2B SaaS company with $50 million in annual revenue illustrates the impact in numbers. A pure SaaS stack cost $487,000 over five years, while a proprietary platform offering the same functionality cost $312,000 (TECHSY, May 2026). The in-house solution was more cost-effective in this case because, with a large user base, the company outgrew the licensing model of the SaaS providers.
How to Identify Differentiating Processes
The most challenging part of the Buy-Build-Blend strategy is the groundwork. Which processes truly set you apart? A simple test question can help: Would a customer notice the difference if this process suddenly worked exactly the same way as it does at your biggest competitor? When it comes to payroll accounting, the answer is almost always no. In the case of a proprietary pricing model in retail or a specialized production control system, the answer is often yes.
A second consideration concerns the available data. Processes for which a company has built up its own data and process knowledge over the years are better suited for a “build” approach, because this knowledge is not reflected in off-the-shelf software anyway. Processes without this history are usually implemented more quickly and cost-effectively using off-the-shelf software.
How to Get Started with Analysis
The first step toward developing your own buy-build-blend strategy is to take stock of your key business processes, sorted by degree of standardization and value of differentiation. We have outlined twelve criteria for this very assessment—ranging from the degree of process standardization to exit scenarios—in the article on custom software and off-the-shelf software . The criteria can be applied to individual processes, not just to an entire system.
The second step is not to treat the technology stack as a one-time decision. A process that is generic today can become a differentiator in three years if a company develops its own method for it. The technology stack should therefore be reviewed regularly, not just during the initial system implementation.
Organize Your ProcessesName three core processes. We'll tell you which ones fall under "Buy," which under "Build," and which are a hybrid.
Frequently Asked Questions
What exactly does “blend” mean in the buy-build-blend strategy?
"Blend" refers to using SaaS tools for standard processes and writing custom code for the processes that truly set a company apart (TECHSY, 05/2026). A typical "Blend" stack, for example, combines standard ERP software for accounting with a custom-developed application for core production.
How can you identify differentiation processes?
A process is distinctive if customers would notice the difference compared to the competition were it to suddenly be standardized. Another indicator is the company’s own process knowledge, built up over the years, which is not reflected in any standard software.
How do you get started with analyzing your own software stack?
The first step is to take stock of all relevant business processes, evaluating them based on their standardization level and differentiation value. This list then determines which processes are suitable for “Buy,” which for “Build,” and which for a combination of the two.
The Next Step
torck implements Buy, Build, and Blend in its own projects, with development teams in Maxhütte-Haidhof, Vienna, and Rabat for industry and retail. We say openly where a SaaS solution is enough and where custom code pays off. The point of contact and contractual partner is always the German torck GmbH. In the Initial Consultation we classify your processes together.
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