Should B2B start-ups invest in marketing?

Start-up firms play a major role in the economy, with B2B start-ups often developing new technologies and offerings to business customers that incumbent firms do not provide. However, little is known about the cost-effectiveness of start-up firms' investments in marketing. We integrate insights from managerial interviews with signaling theory to posit how conducting systematic marketing affects start-up firm valuation, and how the combination of the firm's primary customer-type (B2B versus B2C) and development stage (early versus late) moderates that effect. Our empirical analysis reveals that marketing investments affect firm valuation positively for some start-ups and negatively for others depending on the noted moderators. In particular, we find that investments in systematic marketing by early-stage B2B start-ups increase firm valuation, yet more than half of early-stage B2B start-up firms choose not to invest in systematic marketing, apparently believing such investments will not pay off.