Company lists · Data refreshed September 2026

Top 25 Renewable energy forecasting software based in the United States

RevenueBase identified 94 renewable energy forecasting software headquartered in the United States as of September 2026 and tracks 3,523 professional contacts across them, including 1,974 with verified work emails and 1,118 with mobile numbers. San Francisco is the largest hub.

This list covers renewable energy forecasting software 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 5, 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 5, 2026 86% judged on-target in blind review
94Companies
3,523Contacts tracked
1,974Verified emails
1,118Mobile numbers
Explore all 94 companies → Free signup · no credit card · 500 free credits

The 25 largest renewable energy forecasting software based in the United States

Ranked by team size
Top 25 of 94 renewable energy forecasting software based in the United States, ranked by team size, largest first. Data refreshed Sep 5, 2026. Evidence rates how directly each company's own description names renewable energy forecasting software: 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.
#CompanyHeadquartersEmployeesContacts
1
Energy ExemplarPartial evidence
Salt Lake City, UT, United StatesHQ checked Sep 5, 2026501-1,000699

“In an era where the world is rapidly advancing towards a cleaner future through decarbonization, Energy Exemplar’s mission lies in ‘Empowering Transformative Energy Decisions’🪫…”

Source: company website · checked Sep 5, 2026
2
Power FactorsStrong evidence
Waltham, MA, United StatesHQ checked Sep 5, 2026501-1,000494

“Power Factors delivers renewable energy asset management software for global portfolios.”

Source: company website · checked Sep 5, 2026
3
Stem, INCPartial evidence
Houston, TX, United StatesHQ checked Sep 5, 2026501-1,000417

“At Stem, we’re reimagining technology to drive the energy transition.”

Source: company website · checked Sep 5, 2026
4
PCI Energy SolutionsIndirect evidence
Norman, OK, United StatesHQ checked Sep 5, 2026201-500346

“PCIEnergySolutions is a tight-knit team of 300 diligent product experts, engineers, business analysts, and more.”

Source: company website · checked Sep 5, 2026
5
AMSCPartial evidence
Ayer, MA, United StatesHQ checked Sep 5, 2026201-500334

“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 5, 2026
6
AlsoenergyPartial evidence
Boulder, CO, United StatesHQ checked Sep 5, 2026201-500142

“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 5, 2026
7
NRG SystemsIndirect evidence
Hinesburg, VT, United StatesHQ checked Sep 5, 202651-200120

“NRG Systems is the global leader in wind and solar resource measurement and intelligence.”

Source: company website · checked Sep 5, 2026
8
Raptor MapsPartial evidence
Somerville, MA, United StatesHQ checked Sep 5, 202651-200110

“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 5, 2026
9
AmperonStrong evidence
Houston, TX, United StatesHQ checked Sep 5, 202651-200103

“Amperon is the leading energy forecasting company, positioned at the intersection of energy data and AI.”

Source: company website · checked Sep 5, 2026
10
Energy ToolbaseStrong evidence
Jensen Beach, FL, United StatesHQ checked Sep 5, 202651-20093

Energy Toolbase is an industry-leading software platform that provides a cohesive suite of project modeling, storage control, and asset monitoring products that enable solar and…”

Source: company website · checked Sep 5, 2026
11
Enerzinx, LLCIndirect evidence
Irving, TX, United StatesHQ checked Sep 5, 202651-20085

“Traditionally, power systems around the world were designed based on synchronous machines being the primary source of generation.”

Source: company website · checked Sep 5, 2026
12
PowergemStrong evidence
Clifton Park, NY, United StatesHQ checked Sep 5, 202651-20071

“PowerGEM provides advanced power grid and energy market simulation software and services.”

Source: company website · checked Sep 5, 2026
13
Kitu Systems, INCIndirect evidence
San Diego, CA, United StatesHQ checked Sep 5, 202611-5043

“Kitu Systems accelerates consumer adoption of solar, battery storage, and electric vehicle charging by enabling a new generation of interconnection and providing communications…”

Source: company website · checked Sep 5, 2026
14
Nira EnergyStrong evidence
New York City, NY, United StatesHQ checked Sep 5, 202611-5029

“Nira is grid-planning software built for the clean energy transition.”

Source: company website · checked Sep 5, 2026
15
Pearl Street TechnologiesIndirect evidence
Pittsburgh, PA, United StatesHQ checked Sep 5, 202611-5024

“Pearl Street Technologies, a Part of Enverus, is an interconnection solutions company based in Pittsburgh, Pennsylvania.”

Source: company website · checked Sep 5, 2026
16
EncoordStrong evidence
Edgewater, CO, United StatesHQ checked Sep 5, 202611-5023

“encoord provides software tools, data, and advisory services to help energy stakeholders plan for the energy transition.”

Source: company website · checked Sep 5, 2026
17
Utopus InsightsIndirect evidence
Valhalla, NY, United StatesHQ checked Sep 5, 202651-20021

“Utopus Insights, Inc.”

Source: company website · checked Sep 5, 2026
18
ISL AnalyticsStrong evidence
Las Vegas, NV, United StatesHQ checked Sep 5, 202611-5019

“We empower industries tackling the challenges of Climate Change and Energy Transition with actionable data and insightful solutions through our advanced Software Suite.”

Source: company website · checked Sep 5, 2026
19
NewgridPartial evidence
Somerville, MA, United StatesHQ checked Sep 5, 20261-1017

“NewGrid is a software firm in the electric power industry.”

Source: company website · checked Sep 5, 2026
20
AcelerexStrong evidence
Cambridge, MA, United StatesHQ checked Sep 5, 202611-5017

“Acelerex is a global pioneer in providing SaaS-based solutions to the challenges of integrating renewables, energy storage and electric vehicles into the 21st century power grid.”

Source: company website · checked Sep 5, 2026
21
SunairioStrong evidence
Baltimore, MD, United StatesHQ checked Sep 5, 20261-1016

“Sunairio is the first software company to leverage high-resolution probabilistic climate data for energy investment, portfolio strategy, and business insights.”

Source: company website · checked Sep 5, 2026
22
EIRISStrong evidence
Newport Beach, CA, United StatesHQ checked Sep 5, 20261-1016

“At EIRIS, we empower the future of energy resilience through innovative software solutions.”

Source: company website · checked Sep 5, 2026
23
NeurogridStrong evidence
Salt Lake City, UT, United StatesHQ checked Sep 5, 20261-1015

“Data and analytics platform to revolutionize the way developers evaluate, advance, manage and sell renewable energy projects.”

Source: company website · checked Sep 5, 2026
24Northbrook, IL, United StatesHQ checked Sep 5, 202611-5012

“UL Solutions HOMER software delivers industry-leading system simulations, optimization, sensitivity analysis and best-in-class storage models across three categories of hybrid…”

Source: company website · checked Sep 5, 2026
25
WattmoreStrong evidence
Denver, CO, United StatesHQ checked Sep 5, 202611-5010

“WATTMORE is building a software infrastructure which seamlessly integrates and manages millions of distributed energy resources.”

Source: company website · checked Sep 5, 2026

Showing 25 of 94 renewable energy forecasting software based in the United States

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Renewable energy forecasting software based in the United States at a glance

As of Sep 5, 2026
1-10Median size (employees)
San FranciscoLargest hub · 7 HQs
1,118Contacts with mobile numbers
Sep 5, 2026Data refreshed

Companies by employee count

1-10
53
11-50
24
51-200
9
201-500
3
501-1,000
3
1,001-5,000
1

Verified emails by last verification

0–30
1,869
31–60
96
61–90
0
90–180
0
180+
9

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 renewable energy forecasting software, 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 “renewable energy forecasting software”. 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 renewable energy forecasting software, 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, 1,974 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 5, 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 renewable energy forecasting software are there based in the United States?

RevenueBase identified 94 renewable energy forecasting software 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?

Energy Exemplar, headquartered in Salt Lake City, tops this list with the largest team on record.

Which city has the most renewable energy forecasting software?

San Francisco leads with 7 headquartered companies, followed by Boulder (5) and Dallas (4).

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 1,974 verified decision-maker contacts tracked across these 94 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 5, 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.