Startup cost: $100 - $3k

Setup costs for starting a Sustainability Consulting side hustle can range from $100 to $3,000. At the minimum end, you would need funds for basic online presence setup, such as a website domain and hosting. On the higher end, investing in professional website design, branding, and marketing tools could enhance your credibility and attract more clients. Essential expenses include domain registration, website hosting, and possibly software subscriptions for project management and analytics. Optional expenses might include advertising on social media platforms or industry directories. Hidden costs could arise from professional certifications or memberships in sustainability organizations. It's important to budget for these recurring fees to maintain your credentials and stay updated in the field. In online communities, people often mention that while starting a sustainability consulting business can be relatively low-cost initially, expenses tend to increase as you invest in marketing and professional development. To take this side hustle seriously, a friend should budget between $100 and $3,000 to cover essential setup costs and potential ongoing fees.