Building a Company Culture That Drives Performance

Key Takeaways

• Company culture is the sum of the behaviors actually rewarded and tolerated every day, not the set of values on the wall.
• Culture is tied directly to financial performance, as highly engaged teams achieve significantly higher profitability than disengaged ones.
• Building a high-performance culture runs through four moves, namely defining the culture the strategy needs, leaders modeling it, reinforcing it through systems, and measuring to close the say-do gap.
• Middle managers carry culture to employees every day, so investing in management capability is investing in culture.

Many leaders still treat culture as a soft factor, nice to have but hard to measure and hard to tie to business results. The reality is the opposite. According to Gallup’s large-scale analysis of hundreds of thousands of business units, those in the top quartile for engagement achieve about 23% higher profitability than those in the bottom quartile, driven by higher productivity and fewer departures, errors, and absences. Culture is therefore not a welfare cost but a performance lever. The problem is that most companies have not tapped that lever. This article moves from what company culture is and why it drives performance, to how to build it, the role of middle managers, and why so many efforts fail.

What Company Culture Is and Why It Drives Performance

Company culture is the set of shared behaviors, norms, and assumptions that shape how people work and make decisions every day. The most useful way for leaders to see culture is through what actually gets rewarded. A company can hang collaboration on the wall, but if the person who gets promoted is always the strongest internal competitor, its real culture is competition. Employees learn culture not from a handbook but by observing which behaviors are rewarded and which are ignored.

The gap between these two columns is exactly where real culture lives, and that gap is sizeable. According to Gallup, only about 20% of employees feel truly connected to their organization’s culture, even though those with a strong connection tend to be far more engaged, less likely to leave, and less prone to burnout. In other words, most employees are working inside a culture they do not feel they belong to.

In Vietnam, company culture remains under-invested despite its role in shaping strategy and retaining talent, as Talentnet has noted. For multinationals running multicultural teams in Vietnam, this gap is even more notable, because a culture that is not actively managed will form on its own in ways that are hard to control.

How to Build a Company Culture That Drives Performance

Building culture is not about rewriting the values statement or holding more engagement events. It is about making day-to-day behavior match strategy, through four moves that reinforce one another.

Define the culture you actually need, tied to strategy

There is no single best culture for every company. The right culture is one that serves a specific strategy. A company competing on innovation needs a culture that accepts risk and experimentation, while one competing on operational excellence needs a culture of discipline and consistency. Copying the culture of a famous tech company into a manufacturing business usually fails, because the behaviors it celebrates do not serve the same strategy. The first step is therefore to identify the few core behaviors the strategy demands, rather than a long list of generic values. A practical way to do this is to ask how employees would behave differently if the strategy succeeded. The answer yields a few observable behaviors, such as proactively sharing information across departments or stopping an ineffective project early. Concrete behaviors like these are far easier to communicate and reinforce than abstract values like integrity or excellence.

Leaders and managers model the culture

Culture is shaped from the top down faster than any communication program. Employees watch what leaders do, especially in difficult moments, and adjust their behavior accordingly. When leaders declare they value transparency but make decisions behind closed doors, the real message is that transparency does not matter. Conversely, a consistent leadership action, such as openly admitting a mistake, shapes culture more powerfully than an internal campaign. Without modeling from the top, every culture effort stops at slogans. This applies to managers at every level, not just the executive team. A manager who consistently gives feedback directly and respectfully teaches the whole team that feedback is safe, faster than any training on feedback culture.

Reinforce culture through systems, not just appeals

This is the most often skipped step. Culture is reinforced or broken by formal systems, including hiring, promotion, rewards, and performance management. If a company wants a culture of collaboration but rewards only individual achievement, the system will always beat the appeal. Building a durable culture requires reviewing these systems so they all reward the behaviors the strategy needs, from hiring criteria and promotion criteria to how people are evaluated and recognized day to day. A quick test is to look at three questions, namely who the company keeps, who it promotes, and who it lets go. The answers usually reflect real culture more accurately than any internal document. When systems contradict the stated values, fixing the system comes first, because no communication beats the reality employees see in personnel decisions.

Measure culture and close the say-do gap

Culture is intangible but not immeasurable. Regular surveys of engagement and cultural perception give a company a data baseline to track rather than judging by feel. More important than the number is the action that follows. When employees raise an issue through a survey and see no change, the next survey loses credibility, and asking without acting is itself a cultural signal. Measurement also does not need to be complex. Beyond periodic surveys, signals such as turnover by team, why employees leave, and participation in feedback channels all say a lot about culture. What matters is choosing a few consistent indicators and tracking the trend over time, rather than chasing a single culture score.

Middle Managers, Who Carry Culture to Employees Every Day

Although culture is shaped at the top, it is delivered every day through direct managers. Employees rarely experience culture through the CEO’s message, but through how their direct manager assigns work, gives recognition, handles mistakes, and makes decisions. According to Gallup, the direct manager accounts for about 70% of the difference in engagement between teams. That means two teams in the same company, with the same stated values, can have completely different cultural experiences simply because they have different managers.

The implication for leadership is clear. A culture strategy cannot stop at the executive level, it must equip middle managers to express that culture through everyday management behavior. Investing in managers’ skills, from how they communicate and recognize to how they handle conflict, is one of the most direct ways to change culture at scale. In practice, this is often overlooked. Many companies appoint managers based on technical expertise while doing little to equip them with people-leadership skills, then expect culture to spread on its own. Closing that gap, through training and through how leadership itself treats the management team, is an indispensable part of any culture effort.

Why Many Culture Efforts Fail

Most failures in building culture come not from a lack of goodwill but from a few systematic mistakes.

• Wall values that contradict real behavior. When the published values do not match what actually gets rewarded, employees believe the behavior, not the statement, and that gap erodes trust.
• Reward systems that run against the stated values. A company that appeals one way but promotes and rewards another lets the real message drown out every culture program.
• Pushing performance while neglecting employee wellbeing. Productivity pressure without attention to mental health easily leads to burnout, and burnout in turn erodes the very performance the company is chasing.
• Delegating culture to one department. When culture is treated as the job of HR or internal communications, it detaches from how the business actually runs and from leadership behavior, and quickly becomes a formality.

The core principle. A company’s real culture lies not in what it declares, but in the behavior it actually rewards.

Conclusion

Company culture is not a soft factor outside the performance equation, but the foundation that determines whether strategy gets executed. It is built not with slogans but through consistency between what a company says and what it actually rewards, from leadership behavior to formal systems and how each manager operates.

With its HR advisory and engagement survey capabilities, Talentnet works with companies to assess their current culture, define the culture the strategy demands, and build the systems that turn that culture into real behavior rather than a statement.

Frequently Asked Questions

How is company culture different from core values?

Core values are the principles a company declares it wants to pursue, while culture is the behavior that actually happens every day. When values are lived through behavior and systems, the two align. When values only sit on paper, the real culture is still shaped by what actually gets rewarded.

How long does it take to change company culture?

There is no fixed timeline, but culture change is usually measured in years rather than months, because it requires changing both leadership behavior and formal systems. Small, consistent changes that are continuously reinforced create more durable shifts than one big one-off campaign.

Do small companies or startups need to build culture deliberately?

Yes, and it is even easier while the company is still small. In the early stage, culture forms quickly and largely through the founders’ behavior. Shaping it deliberately from the start avoids having to fix a deeply embedded culture as the company grows, which is far harder and more costly.

Who is mainly responsible for company culture?

It is the responsibility of top leadership and cannot be fully delegated to HR. Leadership shapes culture through its own behavior and decisions, HR designs the systems and measurement tools, and managers at every level are the ones who enact culture day to day.

How is building culture different for remote or hybrid teams?

The principles stay the same, but reinforcement has to adapt. For remote teams, culture needs to be expressed more explicitly through how people communicate, recognize, and make decisions, because the informal signals of an office are missing. Gallup’s data shows that cultural connection does not necessarily depend on whether employees come into the office.