Insights

Specialized Solar Services 621 Energy offers end-to-end solar photovoltaic solutions including project development, turnkey installation, financing, and ongoing maintenance, presenting opportunities to upsell integrated solar management services or expand into related renewable energy solutions.

Focus on Peak Performance With a mission emphasizing optimal system operation aligned with the summer solstice, there is potential to promote advanced monitoring solutions, performance analytics, and efficiency optimization tools to maximize client system outputs.

Regional Market Presence Based in Massachusetts with a demonstrated expertise in commercial-scale solar projects, the company is well-positioned to target nearby businesses and municipalities seeking localized renewable energy investments and scalable solar infrastructure.

Growth Potential Operating with revenue between one and ten million dollars and a small team, 621 Energy presents opportunities for strategic partnerships or equipment supply agreements to support scaling operations and entering new markets.

Competitive Positioning While smaller than industry giants, 621 Energy distinguishes itself through comprehensive customer-centric solutions, offering tailored services that could be attractive to mid-sized corporations and organizations prioritizing customized renewable energy projects.

621 Energy, LLC Tech Stack

621 Energy, LLC uses 8 technology products and services including WordPress, Open Graph, Squarespace, and more. Explore 621 Energy, LLC's tech stack below.

  • WordPress
    Content Management System
  • Open Graph
    Content Management System
  • Squarespace
    Content Management System
  • Webpack
    Development
  • Google Fonts API
    Font Scripts
  • Twemoji
    Font Scripts
  • Modernizr
    Javascript Libraries
  • Choices
    Javascript Libraries

Media & News

621 Energy, LLC's Email Address Formats

621 Energy, LLC uses at least 1 format(s):
621 Energy, LLC Email FormatsExamplePercentage
LastF@621energy.comDoeJ@621energy.com
50%
LastF@621energy.comDoeJ@621energy.com
50%

Frequently Asked Questions

Where is 621 Energy, LLC's headquarters located?

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621 Energy, LLC's main headquarters is located at 152 Commonwealth Ave, Concord, Massachusetts 01742, US. The company has employees across 1 continents, including North America.

What is 621 Energy, LLC's official website and social media links?

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621 Energy, LLC's official website is 621energy.com and has social profiles on LinkedIn.

What is 621 Energy, LLC's NAICS code?

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621 Energy, LLC's NAICS code is 33441 - Semiconductor and Other Electronic Component Manufacturing.

How many employees does 621 Energy, LLC have currently?

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As of October 2025, 621 Energy, LLC has approximately 5 employees across 1 continents, including North America. Key team members include Project Manager: J. S.Operations And Maintenance Lead: C. B.Principal: B. C.. Explore 621 Energy, LLC's employee directory with LeadIQ.

What industry does 621 Energy, LLC belong to?

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621 Energy, LLC operates in the Renewable Energy Semiconductor Manufacturing industry.

What technology does 621 Energy, LLC use?

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621 Energy, LLC's tech stack includes WordPressOpen GraphSquarespaceWebpackGoogle Fonts APITwemojiModernizrChoices.

What is 621 Energy, LLC's email format?

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621 Energy, LLC's email format typically follows the pattern of LastF@621energy.com. Find more 621 Energy, LLC email formats with LeadIQ.

When was 621 Energy, LLC founded?

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621 Energy, LLC was founded in 2011.
621 Energy, LLC

621 Energy, LLC

Renewable Energy Semiconductor ManufacturingUnited States2-10 Employees

Massachusetts-based 621 Energy, LLC builds, owns, operates and services commercial-scale solar photovoltaic systems. We provide a complete range of solar PV solutions including:
- Project Development
- Turnkey Installation
- Financing
- Operation and Maintenance
- Solar and Energy Consulting Services

June 21st is most often the date of the summer solstice, when the sun’s position in the sky reaches its northernmost extreme. This is the longest day of the year and a peak solar power day in the northern hemisphere.

In the spirit of the summer solstice, the mission of 621 Energy is to ensure that our solar photovoltaic (PV) systems and those of our clients operate at a peak performance level.

The experienced 621 Energy team has developed standards for project management, engineering, product selection, installation, documentation and ongoing monitoring which are designed to meet the requirements of the most discerning customers.

Section iconCompany Overview

Headquarters
152 Commonwealth Ave, Concord, Massachusetts 01742, US
NAICS Code
33441 - Semiconductor and Other Electronic Component Manufacturing
Founded
2011
Employees
2-10

Section iconMedia & News

Section iconFunding & Financials

  • $1M$10M

    621 Energy, LLC's revenue is estimated to be in the range of $1M$10M

Section iconFunding & Financials

  • $1M$10M

    621 Energy, LLC's revenue is estimated to be in the range of $1M$10M

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