Growth hacking
Growth hacking is an approach to business growth that prioritises rapid experimentation, data analysis, and unconventional tactics to find the most scalable and cost-efficient ways to acquire and retain customers. The term was coined in the early days of the startup ecosystem, where companies needed to grow fast without large marketing budgets, and it has since become a widely adopted mindset across marketing and product teams of all sizes.
Growth hackers combine marketing thinking with product and data skills, running continuous experiments across acquisition channels, onboarding flows, referral mechanics, and retention programmes to identify the levers that produce disproportionate results. Every tactic is measured; what works gets scaled, what does not gets dropped. Classic growth hacking examples include Hotmail adding a signature link to every outgoing email, Dropbox’s referral programme offering extra storage for referrals, and Airbnb’s integration with Craigslist to reach a large existing audience. Each was a low-cost, high-leverage insight unlocked by thinking creatively about distribution.
For B2B marketing teams, growth hacking principles translate into a culture of structured experimentation: defining a clear growth metric, generating hypotheses about what will move it, designing lightweight tests, measuring results rigorously, and scaling winners. The most effective B2B growth experiments tend to sit at the intersection of product and marketing, using product behaviour data to trigger timely, relevant communications that accelerate activation, expansion, and referral.
What is the difference between growth hacking and traditional marketing?
Traditional marketing typically involves planned campaigns with defined budgets, channels, and creative. Growth hacking is more experimental and cross-functional: it treats every assumption as testable, moves faster, and is as likely to find growth in product decisions or referral mechanics as in advertising. Growth hackers are comfortable in data, product, and marketing simultaneously. The distinction has blurred as data-driven marketing has become mainstream, but the growth hacking mindset is still characterised by its speed, frugality, and willingness to test unconventional ideas.
What metrics do growth hackers focus on?
Growth hackers typically focus on a single primary metric, sometimes called the North Star metric, that best represents sustainable growth for the business. For a SaaS company this might be monthly active users or activated accounts; for an e-commerce business it might be repeat purchase rate. Subsidiary metrics track the levers that drive the North Star, such as acquisition cost, activation rate, retention rate, and referral rate. The AARRR framework (Acquisition, Activation, Retention, Referral, Revenue) is a common structure for organising growth metrics.
Can growth hacking work for established B2B businesses, not just startups?
Yes, though the application looks different. Established businesses have more data, more existing customer relationships, and more channels to experiment within. Growth hacking principles apply well to optimising onboarding flows to improve activation rates, building referral or advocacy programmes for existing customers, running systematic A/B tests across email and paid channels, and using product usage data to trigger timely upsell and cross-sell communications. The mindset of rapid, data-driven experimentation is as valuable in a mature business as in an early-stage startup.