Who Just Raised
Get Pro

Waltham, MA · Energy · Form D filed Oct 5, 2026

Adden Energy, Inc. raised $16.9M

Adden Energy, Inc. is an energy company based in Waltham, Massachusetts. In a Form D filed with the SEC on October 5, 2026, it reported raising $16,897,972 from 7 investors as part of an offering of up to $26,641,463. The first sale in the offering took place on September 18, 2026.

$37M raised since 2020

3 Form D offerings, as reported to the SEC, the first in Feb 25, 2022. Amendments update a round; they aren't counted twice.

FiledSoldOffering sizeInvestors
Oct 5, 2026$16.9M$26.6M7
Sep 3, 2024$15M$15M4
Feb 25, 2022$5.1M$5.1M3

Lead score

48 out of 100

filed recently early raise still raising budget to spend website found

Outreach kit How it works 1:21

A first message that shows you did your homework, written from this filing. Fill in the brackets and send.

Email · subject: Congrats on the new round

Hi [first name],

Congrats on the new round. I saw the raise in your SEC filing.

Teams at this stage usually start looking at [what you do] right after a round...

[Your name]

LinkedIn note

Congrats on the new round. I work with [who you help] on [what you do] right after a raise. Open to connecting?

Call opener

Hi, this is [your name] from [company]. I am calling because you just filed a raise with the SEC...

Find the right person Founders & CEO · Finance · Operations · People & hiring · Sales & marketing

Track this company How it works 0:56

Saved to your dashboard pipeline, with a badge in Explore.

Loading your outreach kit…

The outreach kit is part of Pro. Copy-ready email, LinkedIn and call openers for every new raise, plus daily alerts for the companies you sell to.

Start your free trial Already on Pro? Sign in

Filing details

Website
addenenergy.com
Amount raised
$16,897,972
Offering size
$26,641,463
Investors so far
7
First sale
September 18, 2026
Securities offered
Equity
Exemption claimed
Rule 506(b)
Industry
Energy
Headquarters
Waltham, Massachusetts
Incorporated
Delaware
Entity type
Corporation

Filings

FiledFormRaisedOffering sizeInvestorsSource
D (new notice) $16,897,972 $26,641,463 7 SEC filing

Figures come from the company's own filing with the SEC and are shown as reported. How to read a Form D.

Updated · Raises in the week of Oct 5, 2026 · Raises in Massachusetts

Similar raises

All energy raises →

Health Care $1.7M

FluidForm Bio, Inc.

Waltham, MA · filed Aug 27

We build living human tissue using cells, proteins, and nothing else. Our technology leverages the intersection of personalized medicine, synthetic and computational biology, advanced materials,…

First Form DStill raising

Energy $18.3M

Mantel Capture, Inc.

Cambridge, MA · filed Aug 24

4th Form D since 2022Still raising

EnergyNo press found $8.9M

Sapphire Technologies, Inc.

Cypress, CA · filed Oct 15

Sapphire Technologies’ Turboexpander solution harnesses the power of gas expansion for clean energy recovery. Ideal for Natural gas industrial applications, this energy recovery turboexpander system…

5th Form D since 2021Still raising

Who Just Raised Pro

The raises that matter to you, in your inbox every weekday morning.

Your sectors, states and deal size · first-time vs repeat raisers · open rounds · a watchlist · every raise as a spreadsheet each Monday.