Insights

Local Market Potential A1 Sun operates primarily in Berkeley and the greater Bay Area, indicating strong local market familiarity and potential for expansion into neighboring cities with a focus on residential and commercial solar installations, maintenance services, and solar-thermal systems.

Sustainability Credibility Founders bring 30-plus years of solar industry experience and a history with nonprofit initiatives, which can support credibility for government, municipal, and school district projects while strengthening sustainability-focused marketing and partnerships.

Growth and Financing With revenue in the 10 to 25 million range and a lean team, there is room to scale through financing options, such as power purchase agreements or equipment leases, and by expanding into energy storage and larger commercial installations.

Digital Enablement Current tech stack suggests opportunities to enhance lead generation, CRM, and project workflow through modern marketing automation and integrations, enabling more efficient customer acquisition and project delivery.

Leadership Partnerships Leaders Larry Giustino and Paul Cooper offer deep industry pedigree, presenting a pathway for strategic partnerships, channel collaborations, and joint ventures to pursue larger projects in the Bay Area.

A1 Sun, Inc. Tech Stack

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

Concrete CMS

Content Management System

Fastmail

Vue.js

Javascript Frameworks

Moment.js

Javascript Libraries

jQuery

Javascript Libraries

GoDaddy

Web Hosting

Bluehost

Web Hosting

Apache HTTP Server

Web Servers

A1 Sun, Inc. Email Formats	Example	Percentage
FirstL@a1suninc.com	JohnD@a1suninc.com	100%

A1 Sun, Inc. Email Formats

Example

Percentage

FirstL@a1suninc.com

JohnD@a1suninc.com

100%

Frequently Asked Questions

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

A1 Sun, Inc.'s main headquarters is located at 1435 4th Street Berkeley, California 94710 United States. 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.

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

A1 Sun, Inc.'s NAICS code is 33441 - Semiconductor and Other Electronic Component Manufacturing.

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

As of June 2026, A1 Sun, Inc. has approximately 13 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 CMSFastmailVue.jsMoment.jsjQueryGoDaddyBluehostApache HTTP Server.

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.

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

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

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

A1 Sun, Inc. has approximately 13 employees.

Q: What technology does A1 Sun, Inc. use?

A1 Sun, Inc.'s tech stack includes Fastmail, Moment.js, Apache HTTP Server, jQuery, Concrete CMS.

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

A1 Sun, Inc.'s NAICS code is 33441 (Semiconductor and Other Electronic Component Manufacturing).

Renewable Energy Semiconductor ManufacturingCalifornia, United States11-50 Employees

A1 Sun, Inc. is a Berkeley, California-based company focused on installing photovoltaic and thermal solar energy systems in the renewable energy sector. It aims to provide high-quality, affordable solar installations that benefit local residents and the wider environment. The company serves the Berkeley area and nearby East Bay communities such as Oakland, Emeryville, Albany, El Cerrito, Richmond, and Orinda, extending its reach beyond these towns. The firm was incorporated in 2007 by Larry Giustino and Paul Cooper, both with decades of experience in the solar field. Their prior work in the local solar community includes leadership roles with Solar Station, Inc. and the nonprofit Alternative Energy Collective in the late 1970s and 1980s.

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A1 Sun, Inc. Tech Stack

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A1 Sun, Inc.'s Email Address Formats