Company lists · Data refreshed September 2026

Top 25 Grid integration software companies based in the United States

Name: Grid integration software companies based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 3, 2026 497 companies tracked

RevenueBase identified 497 grid integration software companies headquartered in the United States as of September 2026 and tracks 27,156 professional contacts across them, including 12,007 with verified work emails and 8,403 with mobile numbers. San Francisco is the largest hub.

This list covers grid integration software companies headquartered in the United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, how directly it supports the match, and when it was last checked. Data refreshed September 3, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row Match evidence on every row Refreshed Sep 3, 2026 86% judged on-target in blind review

497Companies

27,156Contacts tracked

12,007Verified emails

8,403Mobile numbers

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The 25 largest grid integration software companies based in the United States

Ranked by team size

Top 25 of 497 grid integration software companies based in the United States, ranked by team size, largest first. Data refreshed Sep 3, 2026. Evidence rates how directly each company's own description names grid integration software companies: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts
1	Hubbell IncorporatedIndirect evidence	Shelton, CT, United StatesHQ checked Sep 3, 2026	10001+	4,066
	“Hubbell Incorporated is a leading manufacturer of utility and electrical solutions that help build more reliable, resilient, and renewable energy infrastructure.” Source: company website · checked Sep 3, 2026
2	FluenceIndirect evidence	Arlington, CA, United StatesHQ checked Sep 3, 2026	1,001-5,000	1,842
	“To achieve our mission, we design, deploy, and operate the world’s most advanced modular energy storage products, comprehensive lifecycle services, and AI-enabled asset management…” Source: company website · checked Sep 3, 2026
3	GE DigitalPartial evidence	San Ramon, CA, United StatesHQ checked Sep 3, 2026	1,001-5,000	1,773
	“At GE Digital, our focus is clear: delivering software that accelerates a new era of energy.” Source: company website · checked Sep 3, 2026
4	Powersecure, INCIndirect evidence	Durham, NC, United StatesHQ checked Sep 3, 2026	501-1,000	733
	“PowerSecure, a Southern Company subsidiary, is a leading provider of innovative energy solutions to electric utilities and their industrial, institutional, and commercial…” Source: company website · checked Sep 3, 2026
5	Electric Power EngineersPartial evidence	Austin, IL, United StatesHQ checked Sep 3, 2026	501-1,000	619
	“Electric Power Engineers (EPE) is a global advisory and engineering firm advancing grid reliability, resilience, flexibility, and affordability.” Source: company website · checked Sep 3, 2026
6	QualitrolPartial evidence	Fairport, NY, United StatesHQ checked Sep 3, 2026	501-1,000	499
	“Qualitrol is a global leader in electrical grid monitoring solutions for businesses that manage, operate, or support the power grid.” Source: company website · checked Sep 3, 2026
7	UplightPartial evidence	Boulder, CO, United StatesHQ checked Sep 3, 2026	501-1,000	484
	“Uplight is a clean energy technology company that unlocks grid capacity by activating customers and their connected devices to generate, shift, and save energy.” Source: company website · checked Sep 3, 2026
8	Open Systems InternationalIndirect evidence	Bedford, MA, United StatesHQ checked Sep 3, 2026	1,001-5,000	444
	Source: company website · checked Sep 3, 2026
9	PCI Energy SolutionsIndirect evidence	Norman, OK, United StatesHQ checked Sep 3, 2026	201-500	345
	“PCIEnergySolutions is a tight-knit team of 300 diligent product experts, engineers, business analysts, and more.” Source: company website · checked Sep 3, 2026
10	AMSCIndirect evidence	Ayer, MA, United StatesHQ checked Sep 3, 2026	201-500	333
	“AMSC (NASDAQ: AMSC) generates the ideas, technologies and solutions that meet the world’s demand for smarter, cleaner … better energy.” Source: company website · checked Sep 3, 2026
11	VoltusIndirect evidence	San Francisco, CA, United StatesHQ checked Sep 3, 2026	201-500	268
	“Voltus is a leading DER technology platform and virtual power plant operator connecting distributed energy resources to electricity markets, delivering less expensive, more…” Source: company website · checked Sep 3, 2026
12	FlexgenPartial evidence	Durham, FL, United StatesHQ checked Sep 3, 2026	201-500	267
	“FlexGen delivers the best integrated energy storage systems by taking a functionality and software-first approach.” Source: company website · checked Sep 3, 2026
13	EnergyhubPartial evidence	Brooklyn, NY, United StatesHQ checked Sep 3, 2026	51-200	249
	“EnergyHub is a software technology company based in New York, NY.” Source: company website · checked Sep 3, 2026
14	ANB Systems, LLCPartial evidence	Houston, TX, United StatesHQ checked Sep 3, 2026	51-200	224
	“ANB Systems is a leading software provider for the energy industry.” Source: company website · checked Sep 3, 2026
15	Origis EnergyIndirect evidence	Miami, FL, United StatesHQ checked Sep 3, 2026	201-500	218
	“Origis Energy is accelerating the transition to a carbon-free future by Reimagining ZeroSM.” Source: company website · checked Sep 3, 2026
16	HOC INCPartial evidence	New York, NY, United StatesHQ checked Sep 3, 2026	51-200	217
	“HOC, founded in 2001, specializes in building software for the energy trading and financial services sectors.” Source: company website · checked Sep 3, 2026
17	Energy VaultIndirect evidence	Westlake Village, VA, United StatesHQ checked Sep 3, 2026	51-200	204
	“Energy Vault® is an integrated power infrastructure platform that builds, owns and operates flexible, reliable energy systems to accelerate time-to-power for utilities…” Source: company website · checked Sep 3, 2026
18	Motive EnergyIndirect evidence	Orange County, TX, United StatesHQ checked Sep 3, 2026	201-500	204
	“Motive Energy transforms how businesses source, store, convert, move, and manage their energy through end-to-end solutions that empower customers to take control of their energy.” Source: company website · checked Sep 3, 2026
19	Trimark Associates, INCIndirect evidence	Folsom, CA, United StatesHQ checked Sep 3, 2026	51-200	149
	“Follow us to discover company developments, our energy clients' successes and employment opportunities.” Source: company website · checked Sep 3, 2026
20	AlsoenergyIndirect evidence	Boulder, CO, United StatesHQ checked Sep 3, 2026	201-500	147
	“From its founding, AlsoEnergy has led the market in edge-to-cloud portfolio management solutions that make clean energy more resilient, manageable, and scalable.” Source: company website · checked Sep 3, 2026
21	GridwarePartial evidence	San Francisco, CA, United StatesHQ checked Sep 3, 2026	51-200	136
	“Gridware is a technology company focused on protecting and enhancing the electrical grid.” Source: company website · checked Sep 3, 2026
22	Clean Power ResearchPartial evidence	Bellevue, CA, United StatesHQ checked Sep 3, 2026	51-200	130
	“Our cloud software services are powering the energy transformation by enabling utilities to engage customers about their energy options, automate DER program administration and…” Source: company website · checked Sep 3, 2026
23	Emerson Ovation Automation PlatformIndirect evidence	Pittsburgh, PA, United StatesHQ checked Sep 3, 2026	10001+	109
	“Explore the ways the Ovation™ Automation Platform and Ovation Green renewable solutions remove data silos to provide a holistic operational view that helps utilities meet the…” Source: company website · checked Sep 3, 2026
24	Raptor MapsIndirect evidence	Somerville, MA, United StatesHQ checked Sep 3, 2026	51-200	105
	“Raptor Maps is on a mission to make solar energy the smartest, most reliable, and most competitive source of electricity in the global economy.” Source: company website · checked Sep 3, 2026
25	SENSEIndirect evidence	Cambridge, MA, United StatesHQ checked Sep 3, 2026	51-200	105
	“Sense is making the energy transition accessible for everyone.” Source: company website · checked Sep 3, 2026

Showing 25 of 497 grid integration software companies based in the United States

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Grid integration software companies based in the United States at a glance

As of Sep 3, 2026

11-50Median size (employees)

San FranciscoLargest hub · 24 HQs

8,403Contacts with mobile numbers

Sep 3, 2026Data refreshed

Companies by employee count

1-10

210

11-50

162

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Verified emails by last verification

0–30

31–60

1,006

61–90

6,839

90–180

3,997

180+

165

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among grid integration software companies, so some rows will be adjacent to the category rather than pure plays. The description and evidence rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in the United States whose own description of what they do matches “grid integration software companies”. Matching reads each company's description, not its industry code or its name.
What we exclude: Companies whose own description does not clearly place them among grid integration software companies, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and an evidence rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every listed company carries at least one verified work email, 12,007 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 3, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Frequently asked

How many grid integration software companies are there based in the United States?

RevenueBase identified 497 grid integration software companies headquartered in the United States as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Hubbell Incorporated, headquartered in Shelton, tops this list with the largest team on record.

Which city has the most grid integration software companies?

San Francisco leads with 24 headquartered companies, followed by Houston (23) and New York (18).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 12,007 verified decision-maker contacts tracked across these 497 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 3, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.