What Does Diamond Energy Do?

Total employees75
HeadquartersMelbourne
Founded2004

Diamond Energy is an Australian-owned electricity retailer dedicated to providing customers with renewable energy solutions sourced from a portfolio of renewable generators across Australia. They focus on making sustainable energy accessible and affordable for residential and business customers. The company emphasizes its commitment to supporting the growth of renewable energy in Australia and is known for its customer service and green energy plans. They operate in Victoria, New South Wales, Queensland, and South Australia.

Where Is Diamond Energy's Headquarters?

HQ Function

Serves as the primary hub for strategic decision-making, customer operations, marketing, regulatory affairs, and financial management for Diamond Energy's Australian operations.

Notable Features:

Located in a central business district high-rise, offering modern office amenities and accessibility. The office likely incorporates energy-efficient practices aligning with the company's ethos.

Work Culture:

A dynamic and mission-driven environment focused on sustainability, innovation in the energy sector, and customer satisfaction. Collaboration and a passion for renewable energy are likely key cultural aspects.

HQ Significance:

The Melbourne headquarters is central to Diamond Energy's ability to serve its national customer base and manage its partnerships with renewable energy generators across Australia.

Values Reflected in HQ: Professionalism, commitment to sustainability (potentially through office energy practices), and customer-centric operations.

Location:

Diamond Energy's operations are primarily focused within Australia, serving residential and business customers in Victoria, New South Wales, Queensland, and South Australia. While its parent company, Osaka Gas, has a global presence, Diamond Energy itself operates as an Australian domestic energy retailer.

Street Address:

Level 11, 570 Bourke Street

City:

Melbourne

State/Province:

VIC

Country:

Australia

Where Else Does Diamond Energy Operate Around the World?

No additional office locations available.

Buying Intent Signals for Diamond Energy

Highperformr Signals uncover buying intent and give you clear insights to target the right accounts at the right time — helping your sales, marketing, and GTM teams close more deals, faster.

Notable news
Hiring actively
Corporate Finance
Corporate Finance
Corporate Finance
Corporate Finance
Corporate Finance
*Example signal, not calculated in real time

Who's Leading Diamond Energy? Meet the Executive Team

As of April 2025, Diamond Energy' leadership includes:

Tony Sennitt - Managing Director
Mark Bertoncello - General Manager - Regulation and Business Development
Geoff Gourley - Head of Commercial & Industrial Sales

Who's Investing in Diamond Energy?

Diamond Energy has been backed by several prominent investors over the years, including:

Osaka Gas Energy Oceania Pty. Ltd. (Parent Company)

What Leadership Changes Has Diamond Energy Seen Recently?

Hire0
Exits0

No major executive hires or exits at Diamond Energy have been publicly announced in the last 12 months. The leadership team appears to have maintained stability.

What Technology (Tech Stack) Is Used byDiamond Energy?

Discover the tools Diamond Energy uses. Highperformr reveals the technologies powering your target accounts — helping your sales, marketing, and GTM teams prioritize smarter and close faster.

Diamond Energy Email Formats and Examples

Diamond Energy commonly uses the email format of the first initial followed by the last name. Other formats might exist within the organization.

f[last]@diamondenergy.com.au

Format

tsennitt@diamondenergy.com.au

Example

80%

Success rate

What's the Latest News About Diamond Energy?

Mozo.com.auOctober 19, 2023

Diamond Energy wins Mozo Experts Choice Awards for electricity

Diamond Energy was recognized in the Mozo Experts Choice Awards for Electricity 2023, winning awards for their small business electricity plan in NSW and their solar-friendly electricity plan in SA. This highlights their commitment to providing value and supporting renewable energy....more

Diamond Energy NewsAugust 22, 2023

Diamond Energy Partners with RayGen for Innovative Solar and Storage Project

Diamond Energy announced its involvement in supporting RayGen's innovative solar and thermal storage project in Carwarp, Victoria, by offtaking electricity. This project aims to provide dispatchable renewable energy....more

Canstar BlueFebruary 1, 2024

Diamond Energy Review & Ratings

Canstar Blue provides an overview of Diamond Energy's offerings, noting its focus on renewable energy and competitive plans. Customer satisfaction ratings and plan features are regularly updated....more

Highperformr's free tools for company research

Explore Employees by Region or Country

See where a company’s workforce is located, by country or region.

View Funding Details

View past and recent funding rounds with amounts and investors.

Understand Revenue Insights

Understand company revenue estimates and financial scale.

Track Active Job Openings

Track active roles and hiring trends to spot growth signals.

Review Product and Offerings

Discover what a company offers—products, platforms, and solutions.

Get SIC or NAICS Codes

Get the company’s official SIC and NAICS classifications.

Analyze Website Traffic Trends

Analyze visitor volume, engagement, and top traffic sources.

Discover Social Profiles and Engagement

Explore LinkedIn, Twitter, and other active social profiles.

Identify Top Competitors

Identify top competitors based on similar business traits.

Research and Discover Companies with Highperformr — Smarter, Faster

Explore companies in depth — from the tech they use to recent funding, hiring trends, and buyer signals — all in one powerful view.

Highperformr AI helps you surface the right accounts and enrich your CRM with verified company and contact insights, so your teams can prioritize and engage faster.

  • Track intent signals to find buyers who are actively in-market
  • Enrich contacts and companies instantly, no need to switch tools
  • Automate workflows to stay ahead of every change
  • Connect your CRM & tools for seamless data sync and activation

Thousands of companies, including Diamond Energy, are just a search away.