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Evidence · B2B marketing

B2B buying behavior: buying situations, risk and the buying group

Organizations buy through groups whose size and involvement depend on how new, complex and important the purchase is. Much of what buyers do is managing risk: they lean on familiar suppliers, trusted people and a narrow set of information sources, and brands carry more weight when the decision is riskier. Specifications matter, but so do influence, framing and trust inside the buying group.

Definition

B2B buying behavior describes how organizations, rather than individuals, decide what to buy and from whom. Three concepts organize the field. The buying situation ranges from a new task, through a modified rebuy, to a straight rebuy of something bought before. The buying group, or buying center, is the set of people who take part, such as users, influencers, procurement, deciders and gatekeepers. Perceived risk is the chance and cost of a wrong choice, which buyers try to reduce.

What the research finds

The buying situation shapes the buying group

Organizational buying has long been modelled as a decision process carried out by a group across several roles and stages. A meta-analysis links the type of purchase situation to the size of the buying center and how involved its members are, though some findings are robust and others vary with how the original studies were designed.[1][2][3][4]

Expertise is the main source of influence in the group

A field study of 251 organizational purchase decisions found expert power to be the strongest determinant of a member's influence, followed by reinforcement power, the ability to reward or sanction. How well each source of power works depends on group size, cohesion and time pressure. Members use influence strategies that range from sharing information to open threats.[5][6]

Vendor selection is a risk-handling decision

In experiments with national samples of industrial buyers, how buyers handle risk in choosing a vendor depended on their loyalty to current vendors and on whether they framed the decision as a gain or a loss. The organization's climate in turn shaped that framing.[7][8]

Brands matter more when the purchase is riskier

Business brands influence organizational buyers, but conditionally: brand information weighs more as purchase risk rises, which supports reading B2B brands as a way to make a safe choice. A survey of 273 buying center members found that what makes a brand important differs by setting, with buyers' general brand consciousness counting most for routine supplies and brand preference for high-tech products and intense competition.[9][10]

Trust attaches to the supplier and to the salesperson

Industrial buyers build trust in a supplier firm and in its salesperson through distinct processes, and both forms of trust shape whether buyers expect to keep doing business together.[11]

Search is selective and the journey is shared

Even in complex industrial purchases, buyers settle for good-enough information and rely on a small set of trusted sources. Conceptual work describes B2B customer journeys as collective, iterative and spread across purchase and use. An industry report adds that buying groups spend only a small part of the journey with any supplier's sales force.[12][13][14]

How strong is the evidence?

The core findings on buying centers, influence and risk rest on peer-reviewed field studies, experiments and one meta-analysis, but many are decades old and were run before digital buying channels existed. The meta-analysis itself shows that results depend on study design, so buying-center findings should not be read as fixed rules. How much brand matters varies with category, deal size and switching risk. The claim that buyers spend little time with sellers comes from a non-peer-reviewed industry report, and the journey framework is conceptual rather than measured.

References

  1. Frederick E. Webster, Yoram Wind (1972). A General Model for Understanding Organizational Buying Behavior. Journal of Marketing.
  2. Wesley J. Johnston, Thomas V. Bonoma (1981). The Buying Center: Structure and Interaction Patterns. Journal of Marketing.
  3. Jeffrey E. Lewin, Naveen Donthu (2004). The influence of purchase situation on buying center structure and involvement: a select meta-analysis of organizational buying behavior research. Journal of Business Research.
  4. Wesley J. Johnston, Jeffrey E. Lewin (1996). Organizational buying behavior: Toward an integrative framework. Journal of Business Research.
  5. Ajay Kohli (1989). Determinants of Influence in Organizational Buying: A Contingency Approach. Journal of Marketing.
  6. R. Venkatesh, Ajay K. Kohli, Gerald Zaltman (1995). Influence Strategies in Buying Centers. Journal of Marketing.
  7. Christopher P. Puto, Wesley E. Patton, Ronald H. King (1985). Risk Handling Strategies in Industrial Vendor Selection Decisions. Journal of Marketing.
  8. William J. Qualls, Christopher P. Puto (1989). Organizational Climate and Decision Framing: An Integrated Approach to Analyzing Industrial Buying Decisions. Journal of Marketing Research.
  9. Brian P. Brown, Alex R. Zablah, Danny N. Bellenger, Wesley J. Johnston (2011). When do B2B brands influence the decision making of organizational buyers? An examination of the relationship between purchase risk and brand sensitivity. International Journal of Research in Marketing.
  10. Alex R. Zablah, Brian P. Brown, Naveen Donthu (2010). The relative importance of brands in modified rebuy purchase situations. International Journal of Research in Marketing.
  11. Patricia M. Doney, Joseph P. Cannon (1997). An Examination of the Nature of Trust in Buyer-Seller Relationships. Journal of Marketing.
  12. Thomas G. Brashear, Christian Kowalkowski, João Gustavo da Silva Freire Ritter, Renato Zancan Marchetti, Paulo Henrique Müller Prado (2010). Information search in complex industrial buying: Empirical evidence from Brazil. Industrial Marketing Management.
  13. Arttu Purmonen, Elina Jaakkola, Harri Terho (2023). B2B customer journeys: Conceptualization and an integrative framework. Industrial Marketing Management.
  14. Gartner B2B Buyers Journey (2020). Gartner for Sales.

Bibliographic details only. Follow the DOI to read each study at its publisher.

Related topics

A synthesis of 14 studies, written by ScholarSignal. Last reviewed 2026-09-26.

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