Single sourcing
Single sourcing is a deliberate strategy of concentrating purchases with one supplier when alternatives exist. Unlike sole sourcing, where no options exist, single sourcing is a choice to work exclusively with a preferred supplier for strategic reasons. Organizations choose single sourcing to build deeper partnerships, simplify operations, maximize volume leverage, or enable supplier investments.
Examples
Strategic partnership: A medical device company single-sources a critical component to one supplier, providing volume commitment in exchange for dedicated engineering support, priority capacity allocation, and joint development of next-generation versions. The deep relationship delivers value beyond price.
Operational simplicity: A small manufacturer single-sources fasteners through one distributor rather than managing relationships with multiple suppliers. The modest potential savings from competition doesn't justify the added complexity for this low-strategic-value category.
Supplier investment: An electronics company single-sources a custom display to enable the supplier's investment in specialized tooling and dedicated production capacity. Splitting volume would make the supplier's investment uneconomic.
Definition
Single sourcing trades supply risk and competitive leverage for benefits of concentrated volume and deeper relationships. This tradeoff makes sense when relationship value outweighs competitive pricing, when the supplier offers unique capabilities worth nurturing, or when management complexity costs exceed potential multi-source benefits.
Successful single sourcing requires careful supplier selection since switching costs are high once the relationship is established. Ongoing performance management must maintain standards without competitive pressure to motivate the supplier. Clear agreements should specify service levels, pricing adjustments, and exit provisions.
Risk mitigation in single-source relationships includes monitoring supplier financial health, maintaining technical documentation enabling qualification of alternatives if needed, and contractual provisions protecting supply continuity. Some organizations qualify backup suppliers without giving them volume, preserving the option to pivot if problems arise.
Single sourcing isn't appropriate for all categories. Higher-risk items, commodity materials, and situations where supplier competition drives innovation may warrant multi-source strategies despite their added complexity.
Previous
Next
*GARTNER is a registered trademark and service mark of Gartner, Inc. and/or its affiliates in the U.S. and internationally, and COOL VENDORS is a registered trademark of Gartner, Inc. and/or its affiliates and are used herein with permission. All rights reserved. Gartner does not endorse any vendor, product or service depicted in its research publications, and does not advise technology users to select only those vendors with the highest ratings or other designation. Gartner research publications consist of the opinions of Gartner’s research organization and should not be construed as statements of fact. Gartner disclaims all warranties, expressed or implied, with respect to this research, including any warranties of merchantability or fitness for a particular purpose.