Exhibit 99.4



Environmental
Solutions Worldwide, INC.



66,666,667 SHARES OF COMMON STOCK

ISSUABLE UPON EXERCISE OF SUBSCRIPTION RIGHTS



THE SUBSCRIPTION RIGHTS ARE EXERCISABLE UNTIL
5:00 P.M. NEW YORK CITY TIME

ON[__],
2011, SUBJECT TO EXTENSION OR EARLIER TERMINATION.



May [__], 2011



To: Securities Dealers, Commercial Banks, Trust Companies, and Other
Nominees



This letter is being distributed to securities
dealers, commercial banks, trust companies and other nominees in connection with a rights offering (the “Rights Offering”)
by Environmental Solutions Worldwide, Inc., a Florida corporation (the “Company”), to the holders of its common
stock, par value $0.001 per share (“Common Stock”), as described in the Company’s prospectus dated May
[__], 2011 (the “Prospectus”). Holders of record of Common Stock at the close of business on [__], 2011 (the
“Record Date”) will receive at no charge non-transferable subscription rights (each, a “Subscription
Right”) to purchase up to an aggregate of 66,666,667 shares of Common Stock at a subscription price of $0.12 per share
(the “Subscription Price”), for up to an aggregate purchase price of $8.0 million in cash, or by the delivery
to us by the holder of an equivalent amount of principal and accrued and unpaid interest of indebtedness owed by us to such holder,
or a combination thereof.



Each stockholder will receive one Subscription
Right for each share of Common Stock owned on the Record Date, evidenced by a subscription certificate (the “Subscription
Certificate”) registered in the stockholder’s name or in the name of the stockholder’s nominee. Each Subscription
Right will entitle its holder to purchase [0.51494] shares of Common Stock at the Subscription Price (the “Basic Subscription
Right”). Each Subscription Right also entitles the holder thereof to subscribe for additional shares of Common Stock
that have not been purchased by other Subscription Rights holders pursuant to their Basic Subscription Rights, at the Subscription
Price, if such holder has fully exercised its Basic Subscription Rights (the “Oversubscription Right”). The
Company will not issue fractional shares, but rather will round down the aggregate number of shares holders are entitled
to receive to the nearest whole number. See“The Rights Offering—Subscription Rights” in the Prospectus.



If you exercise the Oversubscription Right on
behalf of beneficial owners of Subscription Rights, you will be required to certify to Bay City Transfer Agency & Registrar
(the “Subscription Agent”) and the Company, in connection with the exercise of the Oversubscription Right, as
to the aggregate number of Subscription Rights that have been exercised pursuant to the Basic Subscription Right, whether the Basic
Subscription Right of each beneficial owner of Subscription Rights on whose behalf you are acting has been exercised in full, and
the number of shares of Common Stock being subscribed for pursuant to the Oversubscription Right by each beneficial owner of Subscription
Rights on whose behalf you are acting. If an insufficient number of shares is available to fully satisfy all Oversubscription Right
requests, the available shares will be distributed proportionately among holders who exercise their Oversubscription Right based
on the number of shares each such holder subscribed for under the Basic Subscription Right. The subscription agent will return
any excess payments by mail without interest or deduction, in the form in which made or if made in a combination of cash and indebtedness,
in the form indicated, or if not indicated, Company indebtedness will be applied first, followed by cash, promptly after the expiration
of the subscription period. See “The Rights Offering—Subscription Rights—Oversubscription Rights”
in the Prospectus.



We are asking you to contact your clients for
whom you hold shares of Common Stock registered in your name or in the name of your nominee to obtain instructions with respect
to the Subscription Rights. In addition, if you exercise Subscription Rights on behalf of beneficial owners who have advised you
that they reside in, have an address in or are located in the State of Arizona, you will be required to certify to the Company
and to the Subscription Agent as to the number of Subscription Rights that have been exercised by you on behalf of a beneficial
owner that is a resident of or is located in Arizona.



Enclosed are copies of the following documents
for you to use:



1.      Prospectus;








2.      Form of
Letter from the Company to its stockholders;



3.      Instructions
for Use of Environmental Solutions Worldwide, Inc. Subscription Certificate (including Substitute Form W-9);



4.      Notice of Guaranteed
Delivery;



5.      A form letter
which may be sent to your clients for whose accounts you hold Common Stock registered in your name or in the name of your nominee;



6.      Beneficial
Owner Election Form, on which you may obtain your clients’ instructions with regard to the Subscription Rights;



7.      Nominee Holder
Certification Form; and



8.      Other Company
Information.



Your prompt action is requested.  The
Subscription Rights will expire at 5:00 P.M., New York City time, on [__], 2011, subject to extension or earlier termination (the
“Expiration Date”).



To exercise Subscription Rights, properly completed
and executed Subscription Certificates and payment in full, which shall be paid in cash or by delivery of an equivalent amount
of principal and accrued and unpaid interest of indebtedness owed by the Company to the holder of such indebtedness, or a combination
thereof, for all Subscription Rights exercised must be delivered to the Subscription Agent as indicated in the Prospectus prior
to the Expiration Date, unless the guaranteed delivery procedures described in the Prospectus are followed in lieu of delivery
of a Subscription Certificate prior to the Expiration Date.



If you have any questions concerning the rights
offering, please contact us at Environmental Solutions Worldwide, Inc., 335 Connie Crescent, Concord, Ontario, Canada L4K 5R2 or
by telephone at (905) 695-4142.



| | Sincerely,                 
| | ---------------------------
| |                            
| |                            
| | Mark YungExecutive Chairman

NOTHING HEREIN OR IN THE ENCLOSED DOCUMENTS
SHALL CONSTITUTE YOU OR ANY PERSON AS AN AGENT OF THE COMPANY, THE SUBSCRIPTION AGENT, THE INFORMATION AGENT OR ANY OTHER PERSON
MAKING OR DEEMED TO BE MAKING OFFERS OF THE COMMON STOCK ISSUABLE UPON VALID EXERCISE OF THE SUBSCRIPTION RIGHTS, OR AUTHORIZE
YOU OR ANY OTHER PERSON TO MAKE ANY STATEMENTS ON BEHALF OF ANY OF THEM WITH RESPECT TO THE OFFERING EXCEPT FOR STATEMENTS MADE
IN THE PROSPECTUS.