Most conversations about sustainability consulting hinge on a single question: What is this going to cost? Fair enough. But the number that should come first — and rarely does — is what you’re actually already spending. While it’s more complex to quantify, that cost is real and significant. And for most mid-size companies doing the work internally, it’s often considerably larger than the invoice they’re trying to avoid.
Let’s take a sustainability report, for example. Producing a credible report that meets disclosure requirements, stands up to stakeholder scrutiny, and actually communicates something meaningful to your audience is a massive project. It requires significant time from sustainability, finance, legal, and communications staff. For a mid-size company without a large dedicated sustainability team, that often means pulling senior people away from work that directly moves the business forward.
But the burden doesn’t stop at report production. Sustainability disclosure frameworks are evolving faster than ever — CSRD, IFRS, TCFD, GRI — and someone on your internal team has to track every update. A specialized consultancy maintains that body of regulatory knowledge across dozens of client engagements, continuously. Your internal team has to rebuild it from scratch, every time.
Meanwhile, as regulations evolve, the stakes of getting it wrong are increasing. The reputational and financial consequences of that can be significant and rarely show up in any internal cost estimate.
Read more: The cost of doing nothing
The math is more significant than most companies realize. According to Glassdoor, total pay for a sustainability team typically spans three roles: a director ($151,000–$279,000/yr), a manager ($101,000–$178,000/yr), and an associate ($65,000–$112,000/yr). At 30% time allocation to sustainability reporting across all three, that's roughly $95,000–$170,000 in annual compensation cost. But Glassdoor's figures reflect employee-facing pay — base, bonus, and equity. Employer taxes, benefits, and overhead typically add another 25–40% on top, pushing the true cost of those three roles to somewhere between $120,000 and $240,000 annually.
Of course, outsourcing doesn't eliminate your internal time commitment, it just reduces it. A well-managed external engagement typically brings your team's allocation down from around 30% to roughly 10%. That 20-point reduction reclaims roughly $80,000–$160,000 in annual labor capacity across the three roles — before you account for what those people can now do with their time.
The hidden cost isn't the hours but what those hours aren’t doing.
A sustainability director spending Q3 formatting a report is not acting on your climate strategy. They’re not engaging your supply chain, building partnerships, or moving emissions reduction opportunities forward.They’re not positioning the company for what’s coming next in regulation or investor expectations. They’re not mitigating business risk or capitalizing on cost-saving change.
Give that person their time back. Let them do the work that only they can do.
An experienced sustainability consultancy completes the reporting work faster and at lower total cost while bringing current regulatory expertise maintained across dozens of client engagements, so you’re always working with up-to-date guidance. They reduce your non-compliance risk, because specialists make fewer errors (because their business necessitates it) and are more likely to catch issues before they become problems. And they create a lighter internal lift year over year, freeing your sustainability team to focus on strategy, tangible transformation, and the high-value decisions that require internal knowledge.
So, what is your team’s time actually worth, and what do you want them doing with it?