Guides
Technology Strategy
Build, Buy, or Partner: How Should You Make Technology Investment Decisions?
CH2 Solutions
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8
min read
The question isn’t whether you can build it. It’s whether building it is where your technology investment creates the most value.
LEADERSHIP CHALLENGE
Leadership Question How should technology leaders decide whether to build a capability internally, buy an existing solution, or bring in an external technology partner?
Technology leaders are often asked to make investment decisions before the path is obvious.
A new capability is needed. A system is holding the business back. A competitor is moving faster. A team is stretched. AI is creating new possibilities. The question quickly becomes whether the company should build something internally, buy an existing solution, or bring in an external partner.
Each option can be the right answer.
The risk comes from choosing based on habit rather than strategy. Companies sometimes build because they want control, buy because it appears faster, or partner because internal capacity is tight—without asking which approach creates the most value for the business.
The better decision starts with understanding what is strategically important, where differentiation matters, how quickly the capability is needed, and what the organization is realistically equipped to own.
Executive Summary
Build, buy, and partner are not competing philosophies. They are different ways of acquiring technology capability.
Building internally can make sense when the capability creates meaningful competitive differentiation, requires deep business knowledge, or needs to remain tightly controlled.
Buying can be the better choice when the problem is common, mature solutions already exist, and custom development would add cost without creating strategic advantage.
Partnering can make sense when the capability matters but the organization needs specialized expertise, additional capacity, or faster execution than the internal team can provide alone.
The strongest technology decisions start with the business outcome—not the preferred delivery model.
Start with the business outcome, then choose the model that creates the most value. Build where differentiation and ownership matter. Buy where the market already solves the problem well. Partner when expertise, capacity, or speed is the constraint. Many strong technology strategies use all three.
At a Glance
Technology Investment Decision
Build, Buy, or Partner?
BUILD
Best when the technology creates strategic differentiation, requires deep business context, or needs significant internal ownership.
BUY
Best when a mature solution already solves a common business need and custom development would add cost without meaningful differentiation.
PARTNER
Best when the capability matters but specialized expertise, additional capacity, or speed is the constraint.
Start with the business outcome, then choose the model that creates the most value. Build where differentiation and ownership matter. Buy where the market already solves the problem well. Partner when expertise, capacity, or speed is the constraint. Many strong technology strategies use all three.
Key Takeaways
Build when the capability creates meaningful differentiation or requires deep ownership and business context.
Buy when the problem is well understood and mature solutions already solve it effectively.
Partner when speed, specialized expertise, or internal capacity makes doing everything internally impractical.
Consider the long-term cost of ownership, not just the initial implementation cost.
Start with the business outcome and strategic importance of the capability—not a predetermined preference for building, buying, or outsourcing.
Technology Investment Decision
A build, buy, or partner decision is a technology investment decision about how an organization should acquire a needed capability.
Build means creating and owning the solution internally.
Buy means adopting an existing commercial product or platform.
Partner means working with an external technology provider to add expertise, capacity, or delivery capability while the organization retains appropriate ownership and direction.
The right choice depends on strategic differentiation, speed, internal capability, cost of ownership, risk, and how important the technology is to the business.
Build, Buy, or Partner?
1. Start with the business outcome
Define what the organization is actually trying to accomplish before discussing technology or delivery models. What changes if this investment succeeds?
2. Determine whether the capability differentiates the business
If the technology is central to how the company competes, serves customers, or creates intellectual property, greater internal ownership may be justified.
If it solves a common business problem that does not differentiate the company, buying may create more value.
3. Assess internal capability and capacity
Ask whether the organization has the skills, leadership, and available capacity to build and maintain the capability well. Being technically capable of building something does not necessarily mean doing so is the best use of the team.
4. Evaluate speed, risk, and total ownership
Compare how quickly each option can create value, the implementation and operational risks, and the long-term cost of maintaining, integrating, supporting, and evolving the solution.
5. Choose the model that creates the most business value
The decision does not have to be purely build or buy. A partner can help close gaps in expertise or capacity while allowing the organization to retain product direction, architectural ownership, and strategic control.
Leadership Lens
Technology teams are capable of building almost anything. That does not mean they should.
One of the most important technology leadership decisions is deciding where your team’s time and expertise create the most value.
We see companies invest significant engineering capacity rebuilding capabilities that already exist in the market while strategically important work waits. We also see the opposite: companies force a generic platform into an area where their technology is actually part of what differentiates the business.
The same applies to partnering. Bringing in an external team should not mean handing over ownership or putting work over the wall. The strongest partnerships add capabilities or capacity while keeping product direction, technical judgment, and accountability aligned with the internal organization.
The goal is not to build less, buy more, or partner more often.
It is to be deliberate about what your organization should own—and where your engineering investment creates the greatest advantage.
FAQ
How do you decide whether to build or buy software?
Start by determining whether the capability creates meaningful differentiation for the business. If mature products already solve a common problem effectively, buying may provide faster value with lower long-term ownership costs. Building becomes more compelling when the capability is strategically important, unique to the business, or central to the customer experience.
When should a company use a technology partner?
A partner can be valuable when the organization needs specialized expertise, additional engineering capacity, or faster execution than the internal team can provide alone. The strongest partnerships complement the internal team rather than replacing its strategic ownership.
Is building custom software more expensive than buying software?
Not always, but the comparison should include total cost of ownership. Custom software requires ongoing maintenance, infrastructure, security, support, and engineering capacity. Commercial software carries licensing, implementation, integration, and potentially increasing subscription costs. The better investment depends on the specific capability and how strategically important it is.
What should companies build internally?
Companies should consider building capabilities that create competitive differentiation, contain important intellectual property, require deep integration with proprietary processes or data, or are central to the customer experience.
What technology should companies buy rather than build?
Buying is often appropriate for mature, standardized capabilities where existing products solve the problem well and building a custom alternative would not create meaningful strategic advantage.
Can a company combine build, buy, and partner strategies?
Yes. Many effective technology strategies use all three. A company might buy a platform, build the capabilities that differentiate its business, and use an external partner to provide specialized expertise or additional engineering capacity.
Sources and Further Reading
Harvard Business Review — IT Doesn’t Matter
Nicholas Carr’s influential examination of when technology creates strategic differentiation and when widely available technology should be treated more like infrastructure.
IT Doesn’t Matter — Harvard Business Review
Martin Fowler — Products Over Projects
Explores the shift from treating software as temporary projects toward long-term product ownership—an important consideration when deciding what technology an organization should build and continue to own.
Products Over Projects — Martin Fowler
McKinsey & Company — Developer Velocity: How Software Excellence Fuels Business Performance
Research into the organizational, technical, and talent capabilities associated with stronger software development performance and business outcomes.
Developer Velocity — McKinsey & Company
Thoughtworks — Technology Radar
An ongoing assessment of technology techniques, tools, platforms, and languages that can help leaders evaluate technology choices and understand the maturity of different approaches.
