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Predictable Growth Decay in SaaS Companies


    The Child is Father of the Man
    – The Rainbow, Wordsworth

    As fall ends and winter approaches, management teams turn to the task of planning for the year ahead. In discussions with our portfolio CEO’s, a question that is frequently asked is: “How fast can, or should, we grow?”

    To answer the question, we looked at a wide variety of SaaS companies, both private and public, and found that the growth rate in any given year is highly predictive of the growth rate in the next.

    Looking at the scatter plot below, three points become clear:

    1. The persistence in growth rates holds across companies of varying size. Our data set included SaaS companies ranging from $1M to $1B in revenue.
    2. The persistence in growth rates holds for both fast- and slow-growing companies. We only looked at companies with growth rates between 10% and 120% because above and below that range very few rules seem to apply. Even in the high end of the range, though, growth rates prove to be fairly sticky.
    3. In a recurring-revenue business model, increasing the growth rate is exceptionally difficult; even maintaining the current level of revenue growth requires careful planning and great execution.

    The solid line on the chart represents the best fit to our data set. The slope of the best-fit line relates the current year’s growth rate to next year’s likely growth. As a rule of thumb, therefore, next year’s growth rate is likely to be 85% of what this year’s was. As is apparent from the relatively tight cluster of points around the line, growth rates decay within a fairly predictable range as companies mature.

    There are two corner cases worth exploring: large companies growing quickly and small companies growing slowly. Let’s look at as an example of the former. In the three years during which Salesforce grew from $100M to $500M (2005-2007) its annual growth rates were 84%, 76%, and 60%. A year later, it was still growing at 50% CAGR. Even as Salesforce approached $1B in revenue, it was able to maintain its growth rate from year to year.

    The second corner case is that of small companies growing slowly. All venture portfolios have a few companies in this category. While there is some satisfaction to be had from the annual increase in revenue, management teams are tempted to hope for (and often forecast) a sudden increase in growth rate. Our experience, though, is that low growth rates are frequently systemic to markets and are more suggestive of a constrained market size (or some other unfavorable dynamic) than a dysfunctional sales organization. In these cases, capital efficient growth is crucial to a good outcome.

    In our next post on SaaS valuations we will look at how current growth rate and the expected ‘growth decay trajectory’ relate to future outcomes and, consequently, valuation multiples today. More importantly, we will discuss what small, fast growing companies can do to maintain high growth rates.

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