Insights

Local Market Focus A1 Sun, Inc. primarily operates within the Berkeley area and surrounding cities such as Oakland and El Cerrito, highlighting a strong local customer base. This presents opportunities to offer tailored, community-centric solar solutions and explore regional expansion strategies.

Experienced Leadership Founded by industry veterans with over 30 years of experience in solar installation and renewable energy initiatives, A1 Sun benefits from deep technical expertise. This indicates potential for sophisticated project collaborations and advanced system offerings.

Growing Revenue Range With an annual revenue between $1 million and $10 million, A1 Sun is a mid-sized company showing growth potential. This suggests open opportunities for partnership expansion or upselling premium solar and thermal energy solutions as they scale.

Technology Stack Compatibility Utilizing diverse technologies such as Vue.js, PHP, and Ubuntu, A1 Sun demonstrates a capability for integrating and customizing digital solutions. This presents prospects for offering innovative software tools for project management, monitoring, or customer engagement.

Competitive Positioning While operating in a competitive landscape with larger firms like Sunpower and Sunrun, A1 Sun’s local focus and experienced team position it uniquely for targeted local advertising, community outreach, and niche market opportunities in renewable energy.

Similar companies to A1 Sun, Inc.

A1 Sun, Inc. Tech Stack

A1 Sun, Inc. uses 8 technology products and services including Concrete CMS, Microsoft 365, Vue.js, and more. Explore A1 Sun, Inc.'s tech stack below.

Concrete CMS
Content Management System
Microsoft 365
Email
Vue.js
Javascript Frameworks
Moment.js
Javascript Libraries
Ubuntu
Operating Systems
PHP
Programming Languages
Bluehost
Web Hosting
Apache
Web Servers

Media & News

A1 Sun, Inc.'s Email Address Formats

A1 Sun, Inc. uses at least 1 format(s):

A1 Sun, Inc. Email Formats	Example	Percentage
FirstL@a1suninc.com	JohnD@a1suninc.com	50%
FirstL@a1suninc.com	JohnD@a1suninc.com	50%

Frequently Asked Questions

Where is A1 Sun, Inc.'s headquarters located?

A1 Sun, Inc.'s main headquarters is located at 1435 4th St, Berkeley, CA 94710, US. The company has employees across 1 continents, including North America.

What is A1 Sun, Inc.'s phone number?

You can contact A1 Sun, Inc.'s main corporate office by phone at

+1-510-526-****

. For more prospecting data, LeadIQ has access to up-to-date and accurate contact information within our platform. Find, capture, and sync contact data to your CRM and sales tools in one click.

What is A1 Sun, Inc.'s official website and social media links?

A1 Sun, Inc.'s official website is a1suninc.com and has social profiles on LinkedIn.

How much revenue does A1 Sun, Inc. generate?

As of October 2025, A1 Sun, Inc.'s annual revenue is estimated to be $1M.

What is A1 Sun, Inc.'s SIC code NAICS code?

A1 Sun, Inc.'s SIC code is 1711 - Plumbing, Heating and Air-Conditioning NAICS code is 33441 - Semiconductor and Other Electronic Component Manufacturing.

How many employees does A1 Sun, Inc. have currently?

As of October 2025, A1 Sun, Inc. has approximately 12 employees across 1 continents, including North America. Key team members include Technical Asset Manager: C. S.Solar Interconnection Specialist / Warehouse Associate: L. H.Installer: A. G.. Explore A1 Sun, Inc.'s employee directory with LeadIQ.

What industry does A1 Sun, Inc. belong to?

A1 Sun, Inc. operates in the Renewable Energy Semiconductor Manufacturing industry.

What technology does A1 Sun, Inc. use?

A1 Sun, Inc.'s tech stack includes Concrete CMSMicrosoft 365Vue.jsMoment.jsUbuntuPHPBluehostApache.

What is A1 Sun, Inc.'s email format?

A1 Sun, Inc.'s email format typically follows the pattern of FirstL@a1suninc.com. Find more A1 Sun, Inc. email formats with LeadIQ.

When was A1 Sun, Inc. founded?

A1 Sun, Inc. was founded in 2007.

A1 Sun, Inc.

Renewable Energy Semiconductor ManufacturingUnited States11-50 Employees

We incorporated A1 Sun, Inc. in 2007 with the goal of installing superb, affordable photovoltaic and thermal solar energy systems to benefit our neighbors, our community, and the larger global environment. 

We are located in Berkeley and work locally in our home town and the surrounding cities of Oakland, Emeryville, Albany, El Cerrito, Richmond and Orinda and beyond.  Founding members Larry Giustino and Paul Cooper both have 30+ years of experience in the solar field. 

Alameda County folks may remember Paul and Larry from the solar installation company Solar Station, Inc. and the nonprofit sister organization AEC - Alternative Energy Collective in the late 70’s and 80’s.

Company Overview

Headquarters: 1435 4th St, Berkeley, CA 94710, US
Phone number: +1-510-526-****
Website: a1suninc.com
SIC Code: 1711 - Plumbing, Heating and Air-Conditioning
NAICS Code: 33441 - Semiconductor and Other Electronic Component Manufacturing
Founded: 2007
Employees: 11-50