Every entrepreneur eventually faces the same question: Where will the next customer come from? For many Philippine small and medium enterprises, the answer usually involves spending more on Facebook advertising, Google search, influencers or online marketplaces.
But research published in Harvard Business Review suggests many companies may be overlooking one of their most profitable sources of growth: the customers they already have. The article, written by Fred Reichheld, Jamie Cleghorn and Wojtek Kokoszka, analyzed the behavior of more than 10 million consumers and found that although only about 20 percent of new customers came through referrals, they generated roughly 72 percent of the profits from new customers.
That finding suggests referrals do much more than reduce advertising costs. They may improve the quality of the customer base itself because referred customers tend to arrive with a degree of trust already established through the person who recommended the business.
Not all new customers are equally valuable
Many businesses evaluate marketing success through familiar measures such as customer acquisition cost, website traffic and sales conversions. These measures help determine how efficiently a company acquires customers, but they often fail to explain whether customers acquired through different channels create the same amount of long-term value.
This is why the HBR authors argue that companies should ask another question: How did this customer find us? A person who discovers a business through a recommendation from a friend or colleague may behave differently from someone who responds to a paid advertisement.
Referred customers can cost less to acquire, stay longer and spend more over time. They can also become another source of referrals, which means their economic contribution can extend well beyond their own purchases.
Customers can become part of the growth engine
For many Philippine SMEs, referrals already happen naturally. A satisfied diner recommends a restaurant to family members, a homeowner introduces a trusted contractor to neighbors, while a client may refer an accountant, architect or financial adviser to colleagues.
The problem is that few small businesses systematically measure these relationships. An entrepreneur may know exactly which Facebook campaign produced an online inquiry but have no record that one loyal customer brought in five new clients over the past year.
That represents a missed opportunity because referrals should be treated as a measurable business asset rather than simply an accidental result of good service. The HBR authors argue that businesses should identify which customers consistently generate referrals and understand how much additional business those introductions eventually create.
Word of mouth should not be left entirely to chance
Many business owners assume that if customers are satisfied, referrals will naturally follow. While good service is essential, the research suggests businesses can take a more deliberate approach by tracking referral sources, identifying customers who regularly recommend the business and understanding what encourages those recommendations.
This may be particularly important for Philippine SMEs because most cannot compete with the advertising budgets of national companies. A neighborhood clinic, independent restaurant or small professional services firm may never spend as much on marketing as a large chain, but it can still create customer experiences that people are willing to recommend.
Referrals can create compounding growth
One of the most interesting aspects of referral-driven growth is that one recommendation can lead to another. A satisfied customer introduces a friend, that friend later recommends the company to a colleague, and the new customer may eventually introduce someone else.
The result is a network effect in which customer relationships create additional customer relationships. Unlike paid advertising, where results often decline once the campaign stops, referrals can continue producing new business long after the original recommendation was made.
This is one reason the economic value of a referral can be much larger than the initial sale. The original customer may be worth not only what he or she spends but also the future value generated by customers introduced to the company.
Philippine SMEs may already have an advantage
Large corporations spend substantial amounts building brand awareness, but smaller businesses often possess something different: closer relationships with their customers. Restaurant owners may know their regular diners by name, salon owners remember customer preferences and professional service providers may work with the same clients for many years.
These relationships create trust, which is especially important in businesses where customers rely heavily on recommendations. Filipinos often ask friends, relatives or colleagues before choosing a doctor, contractor, school, financial adviser, insurance agent or restaurant, so a trusted referral can carry more influence than another advertisement.
That makes referral-based growth particularly relevant for service-oriented SMEs.
The customer metric many businesses may be missing
Most companies understand the concept of Customer Lifetime Value, which estimates how much revenue or profit a customer may generate during the entire relationship. The HBR authors argue that this measure may still underestimate a customer’s true economic contribution because it usually ignores the customers that person later refers.
Consider two customers who each spend ₱100,000 with a company over five years. Their conventional lifetime value may appear identical, but if one of them introduces six additional customers while the other refers none, their actual economic contribution to the business is clearly different.
A company that measures only direct purchases would fail to capture this difference. A company that tracks referral activity begins to understand which customers are not only buyers but also valuable sources of future growth.
A different way to think about marketing
The findings do not mean Philippine SMEs should stop advertising. Paid marketing remains important for attracting new audiences, creating awareness and introducing unfamiliar brands.
The larger lesson is that advertising and referrals should be viewed as complementary growth strategies. Businesses should consider whether they are spending enough effort on creating customer experiences that people genuinely want to recommend, rather than relying mainly on increasingly expensive acquisition channels.
For some SMEs, improving the customer experience may ultimately produce a better long-term return than simply increasing advertising spending year after year.
The bigger lesson
Every business wants more customers, but the HBR research suggests that the best source of future customers may already be connected to the people a business serves today. For Philippine SMEs, the challenge is therefore not only to acquire new customers but also to identify, measure and cultivate the existing customers who consistently bring others with them.
Those customers can become more than repeat buyers. Over time, they can become one of the company’s most powerful and least appreciated engines of growth.
