Sustainability and Energy Internships for Summer 2027: ESG, Environmental Consulting, and Clean Energy

TL;DR

• Sustainability and energy internships for summer 2027 cover ESG consulting, environmental consulting, renewable energy, sustainability project management, and environmental law, with applications at major firms opening as early as August 2026.

• This guide lists 38 companies hiring sustainability interns with direct career page links, organized by sub-niche so you can start clicking today.

• ESG consulting is the fastest-growing sub-niche right now. Big 4 firms, management consultancies, and corporate sustainability teams are doing most of the hiring.

• You don't need an environmental science degree. Business, engineering, data science, and policy majors all break into sustainability every year.

• Want to build sustainability experience before you apply? A remote Externship lets you work on real company projects with professional mentorship. Explore all Externships →

Is Energy Actually a Good Career Path?

Yes. The numbers make a strong case. The BLS projects wind turbine service technician roles to grow 50% from 2024 to 2034, and solar photovoltaic installer roles to grow 42%. Both rank among the fastest-growing occupations in the entire economy. The WEF's Future of Jobs Report 2025 lists environmental engineers and renewable energy engineers among its top 15 fastest-growing roles globally through 2030.

Why Sustainability Hiring Keeps Accelerating

The Inflation Reduction Act changed the math. According to the Department of Energy, clean energy jobs grew more than three times faster than overall U.S. employment in 2023, adding roughly 150,000 new positions. That brought the total to 3.46 million clean energy workers nationwide.

And corporate demand is piling on. SEC climate disclosure rules, investor pressure for ESG transparency, and net-zero pledges from Fortune 500 companies have turned sustainability from a side initiative into a core business function. Five years ago, most companies didn't have a dedicated sustainability team. Now they can't hire fast enough.

If you're researching jobs in high demand for the future, energy and sustainability consistently land near the top of every projection.

What Do Sustainability Interns Actually Do All Day?

It depends on the sub-niche. Here's a realistic breakdown:

ESG consulting interns help companies measure and report their environmental, social, and governance performance. You'll work on carbon footprint analysis, sustainability reporting using frameworks like GRI and SASB, stakeholder research, and ESG data visualization. It's more spreadsheets and strategy decks than you'd expect.

Environmental consulting interns support site assessments, environmental sampling, GIS mapping, data analysis, and regulatory compliance research. Some days you're in the field collecting soil or water samples. Other days you're in the office writing reports. The variety is real.

Renewable energy interns work on project development, grid integration, engineering analysis, and operations. At a solar company, that might mean modeling energy output for a new installation. At a wind company, it could mean analyzing turbine performance data across a fleet.

What Kinds of Sustainability and Energy Internships Exist?

Sustainability and energy internships fall into five main categories: ESG consulting, environmental consulting, renewable energy operations, sustainability project management, and environmental law. ESG consulting is growing fastest, driven by SEC disclosure rules and corporate net-zero commitments. Environmental consulting has the most entry-level openings. Renewable energy roles cluster around solar and wind.

ESG Consulting and Corporate Sustainability

ESG (Environmental, Social, and Governance) consulting sits where business strategy meets environmental impact. The Big 4 accounting firms (Deloitte, PwC, EY, and KPMG) all run dedicated ESG practices that hire summer interns. Management consultancies like McKinsey, BCG, and Bain have built sustainability practices that didn't exist a decade ago and are now some of their fastest-growing service lines.

In-house corporate sustainability teams at companies like Microsoft, Salesforce, and Unilever also hire interns to work on carbon accounting, ESG reporting, and net-zero strategy. These roles tend to be more operational than consulting, which can be a good thing if you want to see the full lifecycle of a sustainability initiative.

Environmental Consulting and Engineering

Environmental consulting is the more established side of the field. Firms like WSP, AECOM, Arcadis, Tetra Tech, and Jacobs help organizations comply with environmental regulations, assess environmental impact, and manage remediation projects. The BLS reports a median salary of $80,060 for environmental scientists and specialists, with about 8,500 openings projected per year through 2034.

Do you like mixing fieldwork with data analysis? This is probably your sub-niche.

Renewable Energy and Clean Tech

Solar and wind companies are hiring at a pace that would've seemed absurd ten years ago. NextEra Energy, First Solar, Vestas, Ørsted, Tesla's energy division, and Rivian all run internship programs. Roles span engineering, project development, data analysis, and business operations.

If you're also browsing tech internships for summer 2027, clean tech sits right at the intersection of technology and sustainability. Many of these roles require the same technical skills.

Environmental Law and Policy

Environmental law internships exist at law firms with environmental practices, nonprofits like Earthjustice and NRDC, and government agencies like the EPA and DOE. Environmental lawyers help enforce regulations, challenge polluters, and shape climate policy. The BLS notes that environmental law employment is driven by expanding regulations at both federal and state levels.

Most of these internships are geared toward law students. But pre-law undergrads can land policy and research positions at nonprofits and government agencies without a JD.

Which Companies Are Hiring Sustainability Interns for Summer 2027?

Major employers include the Big 4 accounting firms, environmental consulting firms, renewable energy companies, corporate sustainability teams at Fortune 500 companies, and environmental nonprofits. Applications at large firms typically open August to November 2026. Below is every company we found with a verified career page link.

Big 4 and Management Consulting

The Big 4 run the largest ESG internship programs. Deloitte's Sustainability & Climate practice, PwC's ESG team, EY's Climate Change and Sustainability Services (CCaSS), and KPMG's ESG Advisory group all hire summer interns. Pay ranges from $30-$45/hour depending on the firm and office.

McKinsey, BCG, and Bain have built dedicated sustainability practices too. BCG even has a "Climateship" program specifically for climate-focused candidates.

Career pages (Big 4 & consulting): Deloitte Careers · PwC Jobs · EY Climate & Sustainability Careers · KPMG Early Career · McKinsey Sustainability Careers · BCG Climate & Sustainability · Bain Internships

Environmental Consulting Firms

WSP, AECOM, Arcadis, Tetra Tech, Jacobs, Ramboll, Stantec, and HDR all hire environmental consulting interns. Programs typically run 10-12 weeks and involve a mix of fieldwork (site assessments, sampling) and office work (data analysis, GIS mapping, report writing).

Pay ranges from $20-$30/hour. And many of these firms have strong intern-to-full-time pipelines, so a good summer can turn into a job offer.

Career pages (environmental consulting): WSP Early Career · AECOM Early Careers · Arcadis Early Careers · Tetra Tech Careers · Jacobs Early Careers · Ramboll Early Careers · Stantec Students & Grads · HDR Internships

Renewable Energy and Clean Tech Companies

Solar, wind, and clean tech companies are hiring interns across engineering, business, and operations. NextEra Energy runs 10-12 week summer programs. Vestas offers student jobs embedded in business areas across global wind operations. Tesla's energy division hires for Solar Roof, Powerwall, and Megapack projects. Rivian's internships pay $25-$51/hour and include sustainability-focused roles on their Product Sustainability team.

Career pages (renewable energy & clean tech): NextEra Energy Internships · First Solar Careers · Vestas Student Jobs · Ørsted Careers · Tesla Internships · Sunrun Careers · Enphase Careers · Rivian Careers · Bloom Energy Careers · Enel Green Power Careers

Corporate Sustainability Teams and Nonprofits

Fortune 500 companies are building out dedicated sustainability teams. Microsoft, Google, Apple, Salesforce, Unilever, and Patagonia all hire sustainability interns. These roles focus on carbon footprint reduction, ESG reporting, renewable energy procurement, and supply chain sustainability.

Environmental nonprofits offer internships in advocacy, policy research, and litigation. EDF hires roughly 100 paid summer interns annually with weekly speaker series and mentor matching. Earthjustice runs paid legal and policy internships. Government agencies like the EPA and DOE offer Pathways internship programs and research positions at 17 National Laboratories.

Career pages (corporate sustainability): Microsoft Internships · Google Internships · Apple Internships · Salesforce Careers · Unilever Careers · Patagonia Internships

Career pages (nonprofits & government): Earthjustice Student Opportunities · NRDC Careers · Sierra Club Careers · EDF Internships · WRI Internships · EPA Students · DOE Internships & Fellowships

What Skills and Certifications Do You Need?

Most sustainability internships care about foundational knowledge in environmental science, data analysis, or business strategy rather than a specific degree. ESG roles value financial modeling and ESG reporting frameworks (GRI, SASB, TCFD). Environmental consulting roles want GIS, data analysis, and fieldwork skills. The right certification can make a real difference.

Top Certifications for Sustainability Careers

The CFA ESG Investing Certificate is the gold standard for ESG consulting roles. It covers ESG analysis, integration, and stewardship. The LEED Green Associate credential from the U.S. Green Building Council is valuable for roles in green building and sustainable real estate. The GRI Certified Sustainability Professional covers sustainability reporting standards used by thousands of companies worldwide. And the ISSP Sustainability Associate is a solid entry-level credential that shows broad sustainability knowledge.

These aren't free. The CFA ESG Certificate costs around $800, but it signals serious commitment to employers. LEED Green Associate runs about $250 for students. Whether that's worth it depends on your target sub-niche, but for ESG consulting specifically, the CFA credential pays for itself in interview callbacks.

Skills That Actually Show Up in Job Postings

Beyond certifications, these skills consistently appear in sustainability internship listings:

ESG data visualization (Tableau, Power BI for sustainability dashboards), sustainability reporting (GRI Standards, SASB, TCFD frameworks), carbon accounting and greenhouse gas inventories, life cycle assessment (LCA), and GIS mapping for environmental site work.

Here's what hiring managers won't tell you outright: if you can combine sustainability knowledge with data skills, you'll stand out from 90% of applicants. Most sustainability candidates come from environmental science or policy backgrounds. The ones who also know their way around a dataset get hired faster.

Check the best websites to find internships for platform-specific tips on where to search for sustainability roles.

When Do Summer 2027 Applications Open?

Sustainability internship applications for summer 2027 follow a staggered timeline. Big 4 and management consulting ESG roles open August to October 2026 and fill by December. Environmental consulting firms post January to March 2027. Renewable energy companies and nonprofits hire on rolling timelines, some as late as April 2027.

Month-by-Month Timeline

August-October 2026: Big 4 ESG internships (Deloitte, PwC, EY, KPMG) and management consulting sustainability programs (McKinsey, BCG, Bain) open applications. Apply early. These fill fast.

November-December 2026: Environmental consulting firms (WSP, AECOM, Arcadis, Tetra Tech) begin posting summer programs. Corporate sustainability teams at Fortune 500 companies start opening roles too.

January-March 2027: Renewable energy companies post summer internships. Clean tech startups hire on rolling timelines. Government agencies (EPA, DOE) post Pathways positions.

April 2027 and beyond: Nonprofits (Earthjustice, NRDC, EDF, Sierra Club) often hire into spring. Smaller firms and startups keep rolling applications open.

For a complete breakdown across all industries, see the full 2027 internship timeline by industry.

Already Missed the Big 4 Deadlines?

It's not over. Environmental consulting firms, renewable energy companies, and nonprofits hire much later than the Big 4. Government agencies post positions year-round through USAJobs.

So use the extra time. Earn a certification. Add a sustainability project to your portfolio. Or complete a remote Externship that gives you real company experience to talk about in interviews.

Can You Get a Sustainability Internship With No Experience?

Yes. Honestly, sustainability is one of the more forgiving fields for first-timers. The field itself is new enough that hiring managers don't expect years of prior work history. What they do expect is demonstrated interest: relevant coursework, certifications, volunteer work with environmental organizations, and project-based experience. Students from business, engineering, data science, and policy backgrounds break into sustainability every year.

What "Experience" Means in Sustainability Hiring

Campus sustainability clubs, environmental volunteer work, relevant coursework in environmental science or ESG, and independent projects all qualify. An Externship project where you worked on ESG data visualization or sustainability strategy for a real company carries weight because it shows you can deliver in a professional context.

If you're trying to land an internship with no experience, sustainability might actually be the easiest field to break into without a traditional resume. The barrier is interest, not credentials.

Curious about what a remote Externship looks like? It's a short-term, project-based professional experience with a real company and a dedicated mentor.

Free and Low-Cost Ways to Build Sustainability Skills

The CFA ESG Investing Certificate is the most recognized credential for ESG roles (~$800). For free options, UN SDG Learn offers courses on all 17 Sustainable Development Goals. Coursera hosts sustainability specializations from Yale, Johns Hopkins, and the University of Michigan. edX has climate and energy courses from MIT and Harvard.

The EPA also runs internship-to-career programs through its Pathways program. If you're considering federal sustainability work, that pipeline is worth knowing about.

What Do Sustainability Interns Get Paid?

It varies a lot. ESG consulting interns at Big 4 firms earn $30-$45/hour. Environmental consulting interns earn $20-$30/hour. Renewable energy interns at major companies earn $22-$35/hour (Rivian pays up to $51/hour for some roles). Corporate sustainability interns at Fortune 500 companies earn $25-$40/hour. Nonprofit and government positions pay less ($15-$22/hour), and some smaller nonprofits still post unpaid positions.

Pay by Sub-Niche and Company Type

ESG consulting at the Big 4 pays the most in this field, with EY's CCaSS internships paying $36-$44/hour. Management consulting sustainability roles at McKinsey, BCG, and Bain pay comparably.

Environmental consulting firms pay $20-$30/hour, which is lower but comes with strong intern-to-full-time conversion rates. Renewable energy companies vary widely. A NextEra Energy intern and a Rivian intern earn very different rates depending on the role and location.

Government internships through EPA's Pathways program and DOE's National Laboratory programs offer competitive federal pay scales, typically $18-$25/hour depending on your education level. Not glamorous, but the benefits and job security are real.

Yet even the lowest-paid sustainability internships tend to beat unpaid research assistant positions in the humanities.

If you're exploring fun jobs that pay well, sustainability is one of the few fields where purpose-driven work comes with genuinely competitive compensation. Especially in ESG consulting and clean tech.

FAQs

What is an ESG internship?

An ESG (Environmental, Social, and Governance) internship involves helping companies measure, report, and improve their sustainability performance. ESG interns typically work on carbon footprint analysis, sustainability reporting using frameworks like GRI and SASB, stakeholder research, and ESG data visualization. These roles sit at the intersection of business strategy and environmental impact.

Do you need an environmental science degree for a sustainability internship?

No. Sustainability internships welcome students from business, engineering, data science, public policy, and liberal arts backgrounds. What matters more is demonstrated interest: relevant coursework, certifications like the CFA ESG Investing Certificate or LEED Green Associate, and project-based experience. Many ESG roles specifically seek finance or business majors who understand sustainability frameworks.

What do environmental consultants actually do?

Environmental consultants help organizations comply with environmental regulations, assess environmental impact, and develop remediation plans. Day-to-day work includes site assessments, environmental sampling, data analysis, report writing, and client communication. Interns at environmental consulting firms typically assist with field sampling, GIS mapping, data entry, and regulatory research.

Are sustainability internships paid?

Most sustainability internships at established companies and consulting firms are paid. ESG interns at Big 4 firms earn $30-$45/hour. Environmental consulting interns earn $20-$30/hour. Some nonprofit and government positions offer stipends rather than hourly pay, and a few smaller organizations still post unpaid roles. Paid positions are increasingly the standard.

What's the difference between ESG consulting and environmental consulting?

ESG consulting focuses on corporate sustainability strategy, reporting, and investor relations. Environmental consulting focuses on regulatory compliance, site remediation, and environmental impact assessment. ESG is newer, driven by SEC disclosure rules and investor demand. Environmental consulting is more established, driven by EPA regulations and cleanup requirements. Both are growing, but ESG consulting is expanding faster right now.