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Top Energy Companies in Boston, MA (106)

Ekotrope
Cloud • Greentech • Information Technology • Software • Energy
Boston
37 Employees
34 Benefits Hiring Now
Ekotrope makes Energy Efficiency Easy!

Our software predicts how much energy homes will use and helps builders design and build more energy efficient homes. Our software is also used to verify compliance with dozens of energy codes, programs and to share information with homeowners. Our Home Energy Rating Software is the most widely used in the US, used on 1 in every 4 new homes. This...

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Ekotrope

Ekotrope's Top Stability & Growth Strengths

Strong Market Position & Advantage: Positioning as the #1 HERS software, deep RESNET integration (including accreditation through 2026 and registry workflows), and statements of use on roughly 1 in 4 new U.S. homes indicate an entrenched role in the HERS ecosystem. References such as “Builder Data Sharing powered by Ekotrope” and widespread program mentions reinforce ecosystem embed and influence.

Innovation-Driven Growth: Active 2026 releases (e.g., v5.2.2 and v5.2.3 beta) and alignment with evolving ANSI/RESNET 301 addenda, plus additions like HERS H2O, ONSITE, and Market Intelligence, point to sustained product investment and standards currency. Feature expansion into analytics, utility workflows, and inspections suggests growth beyond the core rating engine.

Investor Backing & Capital Strength: An $11M later‑stage investment in October 2025 and reported lifetime funding near $16.9–17.3M signal capacity to support product development and go‑to‑market initiatives. Inclusion on the Inc. 5000 in 2023 aligns with a multi‑year growth trajectory backed by external capital.

UL Solutions
Automotive • Professional Services • Software • Consulting • Energy • Chemical • Renewable Energy
28 Offices
15,000 Employees
47 Benefits Hiring Now
Our mission is to make the world a safer, more secure and sustainable place.

A global leader in applied safety science, UL Solutions transforms safety, security and sustainability challenges into opportunities for customers in more than 100 countries. UL Solutions delivers testing, inspection and certification services, together with software products and advisory offerings, that support our customers’ product innovation and business growth. The UL Certification Marks serve as a recognized symbol of trust in...

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UL Solutions

UL Solutions's Top Stability & Growth Strengths

Strong Revenue Growth: Recent results show full-year 2025 revenue of about $3.05B up roughly 6% year over year, with Q1 2026 up 7.5% and Q2 2026 up ~5% year over year alongside mid‑single‑digit organic gains. Consistent quarterly execution through 2025 underscores steady top‑line momentum.

Profitability: Management reported record revenue with “impressive margin expansion” in Q2 2026, and adjusted EBITDA margin expanded earlier in 2026. Strong operating cash generation in 2025 further supports the improving earnings profile.

Innovation-Driven Growth: New launches such as AI‑enabled sustainability software (ULTRUS 360), building‑compliance software, and certifications for AI‑enabled products and hydrogen fueling components indicate investment in adjacent, faster‑growing niches. These moves align the portfolio with regulation‑ and sustainability‑driven demand.

Alva Energy
Energy • Renewable Energy
Cambridge
12 Employees
Hiring Now

Alva Energy is on a mission to lead the fastest, most affordable nuclear power deployment in history. As the first independent nuclear project management and delivery organization, we're transforming how nuclear projects are executed, bringing unprecedented speed and efficiency to nuclear energy deployment.

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Alva Energy
AeroShield Materials, Inc.
Cambridge
17 Employees

AeroShield is developing super-insulating, transparent inserts for windows, bringing state-of-the-art thermal comfort and energy savings into buildings at an affordable price. We work with insulated-glass manufacturers to integrate our material inside of new windows, ready to install in your home. AeroShield’s material is a breakthrough in silica aerogel research. Developed at MIT by co-founder Dr. Elise Strobach, AeroShield is the first...

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AeroShield Materials, Inc.
eCurv
Greentech • Energy
Cambridge

eCurv introduces a new method for electric energy distribution through Queued Power Access - QPAC®. QPAC offers business customers lower energy costs by queueing power access of electric loads for a few seconds to minimize demand charges, capacity tags, and other associated real-time energy costs. QPAC is imperceptible to customers and delivers immediate savings to a wide range of applications:...

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eCurv
Union of Concerned Scientists
Professional Services • Social Impact • Energy • Renewable Energy
3 Offices
250 Employees
19 Benefits

The Union of Concerned Scientists is an independent national nonprofit that uses science to protect our health, safety, and environment by advocating for practical solutions to global problems.

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Union of Concerned Scientists
Energy Impact Partners
6 Offices
108 Employees
2 Benefits

Energy Impact Partners LP (EIP) is a global venture capital firm leading the transition to a sustainable future. EIP brings together entrepreneurs and the world’s most forward-looking energy and industrial companies to advance innovation. With over $2.5 billion in assets under management, EIP invests globally across venture, growth, credit, and infrastructure – and has a team of over 70 professionals...

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Energy Impact Partners
Acadia Micro
Greentech • Energy
Boston

Acadia Micro provides a software as a service (SaaS) business model for renewable energy asset management across the nation. Our back-office services support development, maintenance, and operation services to enhance the efficiency of our clients' renewable energy projects. Acadia Micro specializes in complex and high volume billing procedures, performance monitoring services, customer acquisition and engagement, and REC/SREC tracking. We meet...

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Acadia Micro
Vanderweil Engineers
Professional Services • Energy
Boston
572 Employees
Hiring Now
MEP/FP, sustainability, technology and power engineering firm dedicated to providing value-added service to our clients.

Vanderweil is a mechanical, electrical, plumbing, fire protection, technology, sustainability, commissioning, and power engineering firm dedicated to providing customized and innovative engineering solutions through excellent client service. We have designed MEP/FP systems for buildings of all types and sizes, as well as cogeneration plants up to 50 MW, chilled water plants up to 100,000 tons, hundreds of miles of transmission...

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Vanderweil Engineers
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Energy and Environmental Economics
3 Offices
127 Employees
Hiring Now

Energy. Environment. Economics. Three cornerstones that shape today’s transition to clean energy resources. E3 has operated at the nexus of energy, environment, and economics since its inception in 1989. We have long been a pioneer and thought leader on the topics key to the energy transition such as how to plan and operate highly renewable energy systems, what policies are...

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Energy and Environmental Economics
Medical Area Total Energy Plant
Greentech • Energy
Boston

Seventy four buildings occupying 12 million square feet of space within the LMA's 213 acre campus rely on MATEP for the energy demands of their mission critical activities. MATEP provides steam, electricity and chilled water to five major hospitals with more than 2,000 beds serving more than 100,000 inpatients & 2.4 million outpatients each year.

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Medical Area Total Energy Plant
Commonwealth Fusion Systems
Cambridge
327 Employees
3 Benefits Hiring Now

Commonwealth Fusion Systems (CFS) has the fastest, lowest cost path to commercial fusion energy. CFS is collaborating with MIT to leverage decades of research combined with new groundbreaking high-temperature superconducting (HTS) magnet technology. HTS magnets will enable compact fusion power plants that can be constructed faster and at lower cost. CFS is now building SPARC, the world's first commercially relevant,...

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Commonwealth Fusion Systems
Clean Harbors, Inc.
Greentech • Energy • Utilities • Industrial
28 Offices
25,000 Employees
27 Benefits Hiring Now

Clean Harbors is North America's leading provider of environmental and industrial services, offering hazardous and non-hazardous waste management, emergency spill response, industrial cleaning, and recycling services.

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Clean Harbors, Inc.
CIRCOR International, Inc.
Aerospace • Energy • Industrial
8 Offices
1,439 Employees
34 Benefits Hiring Now

CIRCOR International is a global manufacturer specializing in highly engineered, complex, and severe environment products that serve long-term, high growth infrastructure markets, including oil and gas, power generation, industrial, and aerospace & defense. CIRCOR. Excellence in Flow Control.

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CIRCOR International, Inc.

CIRCOR International, Inc.'s Top Stability & Growth Strengths

Market Expansion: Feedback suggests CIRCOR is expanding via targeted acquisitions in India and a herringbone gear pump product-line purchase, complemented by an expanded aerospace distribution partnership. These actions broaden geographic presence and channel reach in core industrial and A&D niches.

Investor Backing & Capital Strength: Following its take-private by KKR, the company highlights owner support for long-term investment in mission-critical franchises. Stated plans include funding new products, aftermarket, and factory investments to scale the platform.

Strong Revenue Growth: Before going private, revenue, orders, and backlog rose year over year, with backlog reaching record levels and orders growing double-digit organically. This pre-transaction momentum underpins the subsequent growth initiatives.

Alsym Energy
Woburn
42 Employees

Alsym™ Energy has developed an innovative, inexpensive, high-performance rechargeable energy storage technology that’s free of lithium and cobalt, and ideal for a range of stationary storage use cases, including utility grids, home storage, microgrids, industrial applications, and more. This will be followed by future products for marine applications and EVs including two-wheelers, three-wheelers, and passenger vehicles. Alsym batteries avoid many of...

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Alsym Energy
Munters
Energy • Renewable Energy
15 Offices
2,386 Employees
4 Benefits Hiring Now

Munters is a global leader in energy-efficient air treatment and climate solutions. Using innovative technologies, we create the perfect climate for customers in a wide range of industries. We have been defining the future of air treatment since 1955. Today, 3,940 employees carry out manufacturing and sales in more than 30 countries. Munters Group AB reported annual net sales of...

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Munters

Munters's Top Stability & Growth Strengths

Strong Market Position & Advantage: Munters is widely viewed as a leader in industrial desiccant dehumidification and battery dry rooms, and as a top‑tier player in indirect/evaporative data‑center cooling. Recent record order intake and a large AI cooling award underscore this positioning.

Resilient & Sustainable Growth: Order intake and backlog surged in 2025 and continued to rise in Q1 2026, supporting visibility into historically high 2026 turnover. Management indicates a stronger H2 2026 as backlog converts.

Future-Ready Strategy: The Geoclima acquisition and a U.S. chiller production ramp broaden the offering (including chillers and CDUs) and regionalize supply to align with AI data‑center demand. These actions also help mitigate tariff headwinds as deliveries scale.

Power Solar
9 Offices
30 Employees

At Power Solar we believe that everyone should be able to take part in upgrading their home away from fossil fuels and the cost savings that comes with it. One size does not fit all, there should be options that fit your home, your family and your lifestyle.

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Power Solar
WegoWise
Greentech • Energy
Boston

WegoWise provides a web-based utility analytics platform for the building performance industry. Bridging big data and energy efficiency, WegoWise distills large aggregations of energy and water data into actionable information for building owners, managers, energy auditors and energy efficiency programs. This enables them to track, understand and b

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WegoWise
Resonant Energy
Energy • Solar • Renewable Energy
City of Boston
44 Employees
2 Benefits Hiring Now

Resonant Energy exists to create coalitions that empower people to plan, finance, and build clean energy projects and put communities in control of their own energy. We believe that clean, affordable energy is a right, not just for those at the top, but for 100% of people.

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Resonant Energy
HomeWorks Energy
3 Offices
242 Employees
16 Benefits Hiring Now

At HomeWorks Energy, our mission is simple, literally: Energy Efficiency, Simplified. To help make homes smarter, greener, and more comfortable year-round, we specialize in home energy assessments, professional insulation work, and complete heating and cooling system upgrades. We figure, the more we help homeowners see how to be more energy efficient, the more they will. That benefits us all — increasing...

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HomeWorks Energy

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