How long should vetting a software agency take?

For a meaningful project, plan on two to four weeks from first contact to signed contract. That gives time for discovery conversations, a technical walkthrough, reference checks, and proposal comparison. Rushing this to a few days is where most bad partnerships start.

Should I always choose the agency with the most relevant portfolio?

Relevant experience helps, but it is not decisive on its own. A team that has built in your exact domain may still have weak process and communication, which matter more day to day. Weigh portfolio alongside how they scope, staff, and communicate.

How important are client references, really?

Very. A short call with a recent client reveals how the agency behaved when the project got hard, which no sales pitch will tell you. Ask references specifically about missed deadlines, budget changes, and responsiveness, not just whether they were happy overall.

What if I do not have technical expertise in-house to evaluate them?

Hire an independent engineer for a few hours to review a code sample or join one technical call. It is a small cost relative to the project and closes the biggest blind spot for non-technical buyers. Many experienced consultants offer exactly this kind of vendor evaluation.

Is a higher price a reliable sign of higher quality?

No. Price reflects overhead, positioning, and demand as much as quality. A mid-range firm with strong process can outperform a premium one with weak delivery. Judge on evidence, then treat price as one input among several.

Consultancyvendor selectionagencydue diligence

How to Vet a Software Development Agency

Choosing the wrong software agency can cost you months and six figures. Use this buyer's due diligence checklist to evaluate process, communication, and technical signals before you sign.

CodonomyJuly 17, 20269 min read4 views

How to Vet a Software Development Agency

vendor selectionagencydue diligence

Written by

CodonomyEditorial Team

Insights from the Codonomy team on custom software, AI, automation, and digital growth for B2B companies.

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