Exhibit 10.10

FOURTH AMENDMENT TO LOAN AND SERVICING AGREEMENT

FOURTH AMENDMENT TO THE LOAN AND SERVICING AGREEMENT, dated as of May 29, 2015 (this Fourth Amendment) is entered into
among SUNS SPV LLC, a Delaware limited liability company (the Borrower), Solar Senior Capital Ltd., a Maryland corporation (Solar Senior Capital), as the transferor and the servicer, Citibank, N.A., as the
administrative agent and collateral agent, each of the Conduit Lenders, Lender Agents, Liquidity Banks and Institutional Lenders listed on the signature pages hereto, and Wells Fargo Bank, N.A., as the account bank, the collateral custodian and the
backup servicer. Capitalized terms used herein and not otherwise defined herein shall have the meanings ascribed thereto in the Agreement (as defined below) as amended hereby.

RECITALS

A. The Borrower, Solar
Senior Capital, the Conduit Banks, the Liquidity Banks, the Lender Agents, the Institutional Lenders, the Collateral Agent, the Administrative Agent and the Account Bank, the Collateral Custodian and the Backup Servicer have entered into that
certain Loan and Servicing Agreement, dated as of August 26, 2011, as amended by the First Amendment, dated as of November 7, 2012, the Second Amendment, dated as of September 3, 2013, and the Third Amendment, dated as of
June 30, 2014 (prior to the effectiveness of this Fourth Amendment, the Existing Agreement and following the effectiveness of this Fourth Amendment, and as it may be further amended, restated, supplemented or otherwise
modified from time to time, the Agreement).

B. The parties to the Existing Agreement desire to amend the Existing
Agreement in the manner set forth herein.

AGREEMENT

NOW, THEREFORE, in consideration of the agreements hereinafter set forth, and for other good and valuable consideration, the receipt and
adequacy of which are hereby acknowledged, the parties hereto agree as follows:

1. Amendments to the Agreement. The Agreement
(including the Exhibits and Annexes thereto) is amended in its entirety to read in the form of the Loan and Servicing Agreement attached hereto as Annex I.

2. Effective Date. This Fourth Amendment shall become effective (the Effective Date) upon the satisfaction of the
following conditions (in form and substance reasonably acceptable to the Administrative Agent):



| | (a) | The Administrative Agent shall have received a copy of this Fourth Amendment duly executed by each of the Borrower, Solar Senior Capital, the Lender Agents, the Conduit Lenders, the Liquidity Banks, the Institutional
Lenders, the Collateral Agent, the Administrative Agent and the Account Bank, Backup Servicer and Collateral Custodian.
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| | (b) | The Administrative Agent shall have received a copy of the Amendment Fee Letter and Structuring Fee Letter, each dated as of the date hereof and duly executed by each of the Borrower, Solar Senior Capital and the
Administrative Agent, and the Administrative Agent shall have received the fees set forth therein that are due on the date hereof, in immediately available funds.
| | --- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | (c) | The Administrative Agent shall have received a copy of (i) an Assignment and Assumption, dated as of the date hereof and duly executed by each of
Suntrust Bank and Capital One,
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| | N.A. and consented and accepted by the Borrower and the Administrative Agent, and (ii) a Joinder Supplement, dated as of the date hereof and duly executed by each of Capital One, N.A., the
Borrower, the Administrative Agent and the Collateral Agent.
| | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | (d) | The Administrative Agent shall have received a copy of (i) an Assignment and Assumption, dated as of the date hereof and duly executed by each of Suntrust Bank and ING Bank and consented and accepted by the
Borrower and the Administrative Agent, and (ii) a Joinder Supplement, dated as of the date hereof and duly executed by each of ING Bank, the Borrower, the Administrative Agent and the Collateral Agent
| | --- | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

3. Miscellaneous.

(a) Amended Terms. On and after the date hereof, all references to the Agreement in each of the Transaction Documents
shall hereafter mean the Agreement as amended by this Fourth Amendment. Except as specifically amended hereby or otherwise agreed, the Agreement is hereby ratified and confirmed and shall remain in full force and effect according to its terms.

(b) Representations and Warranties of the Borrower and Servicer. Each of the Borrower and the Servicer, severally, for
itself only, represents and warrants as of the date of this Fourth Amendment as follows:

(i) It has taken all necessary
action to authorize the execution, delivery and performance of this Fourth Amendment.

(ii) This Fourth Amendment has been
duly executed and delivered by such Person and each of this Fourth Amendment and the Agreement, as amended by this Fourth Amendment constitutes such Persons legal, valid and binding obligation, enforceable in accordance with its terms, except
as such enforceability may be subject to (A) bankruptcy, insolvency, reorganization, fraudulent conveyance or transfer, moratorium or similar laws affecting creditors rights generally and (B) general principles of equity (regardless
of whether such enforceability is considered in a proceeding at law or in equity).

(iii) No consent, approval,
authorization or order of, or filing, registration or qualification with, any court or governmental authority or third party is required in connection with the execution, delivery or performance by such Person of this Third Amendment other than such
as has been met or obtained and are in full force and effect.

(iv) The representations and warranties set forth in
Sections 4.01, 4.02 and 4.03 of the Agreement are true and correct in all material respects as of the date hereof (except for those which expressly relate to an earlier date).

(v) No event has occurred and is continuing which constitutes a Event of Default or an Unmatured Event of Default.

(c) Transaction Document. This Fourth Amendment shall constitute a Transaction Document under the terms of the
Agreement.

(d) Counterparts: Electronic Signatures; Severability; Integration. This Fourth Amendment may be
executed in any number of counterparts and by different parties hereto in separate counterparts, each of which when so executed shall be deemed to be an original and all of which when taken together shall constitute one and the same agreement.
Delivery of an



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executed counterpart of a signature page to this Fourth Amendment by e-mail in portable document format (.pdf) or facsimile shall be effective as delivery of a manually executed counterpart of
this Fourth Amendment.

(e) GOVERNING LAW. THIS FOURTH AMENDMENT SHALL, IN ACCORDANCE WITH SECTION 5-1401 OF THE
GENERAL OBLIGATIONS LAW OF THE STATE OF NEW YORK, BE GOVERNED BY THE LAWS OF THE STATE OF NEW YORK. EACH OF THE PARTIES HERETO WAIVES, TO THE FULLEST EXTENT PERMITTED BY LAW, ANY RIGHT IT MAY HAVE TO A TRIAL BY JURY IN RESPECT OF ANY LITIGATION
ARISING DIRECTLY OR INDIRECTLY OUT OF, UNDER OR IN CONNECTION WITH THIS FOURTH AMENDMENT OR ANY OF THE TRANSACTIONS CONTEMPLATED HEREUNDER.

(f) Successors and Assigns. This Fourth Amendment shall be binding upon and inure to the benefit of the Borrower, the
Servicer, the Administrative Agent, each Lender, the Lender Agents, the Collateral Agent, the Account Bank, the Collateral Custodian and their respective successors and permitted assigns.

[Signature pages to follow.]



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IN WITNESS WHEREOF, the parties hereto have caused this Fourth Amendment to be duly executed as
of the date first above written.



SUNS SPV LLC, as BorrowerBy:

/s/ RICHARD L. PETEKAName:

RICHARD L. PETEKATitle:

CHIEF FINANCIAL OFFICERSOLAR SENIOR CAPITAL LTD., as Servicer and TransferorBy:

/s/ RICHARD L. PETEKAName:

RICHARD L. PETEKATitle:

CHIEF FINANCIAL OFFICER


(SIGNATURE PAGES CONTINUE ON FOLLOWING PAGE]



FOURTH AMENDMENT TO LOAN
AND SERVICING AGREEMENT



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CITIBANK, N.A., as Administrative Agent and as Collateral AgentBy:

/s/ JOHN C. DAHLName:

JOHN C. DAHLTitle:

MANAGING DIRECTOR


[SIGNATURE PAGES CONTINUE ON FOLLOWING PAGE]



FOURTH AMENDMENT TO LOAN
AND SERVICING AGREEMENT



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LENDER AGENT:CITIBANK, N.A.By:

/s/ Wayne GeeName:

Wayne GeeTitle:

Vice PresidentCONDUIT LENDER:CRC FUNDING, LLCBy:

Citibank, N.A., as Attorney-in-FactBy:

/s/ Linda MosesName:

Linda MosesTitle:

President


[SIGNATURE PAGES CONTINUE ON FOLLOWING PAGE]



FOURTH AMENDMENT TO LOAN
AND SERVICING AGREEMENT



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INSTITUTIONAL LENDER:ING CAPITAL LLCBy:

/s/ PATRICK FRISCHName:

PATRICK FRISCH, CFATitle:

MANAGING DIRECTORBy:

/s/ KUNDUCK MOONName:

KUNDUCK MOONTitle:

MANAGING DIRECTOR




FOURTH AMENDMENT TO LOAN
AND SERVICING AGREEMENT



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INSTITUTIONAL LENDER:CAPITAL ONE, N.A.By:

/s/ Young SonName:

Young SonTitle:

Director




FOURTH AMENDMENT TO LOAN
AND SERVICING AGREEMENT



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BACK-UP SERVICER:WELLS FARGO BANK, N.A.By:

/s/ Kristen L. PuttinName:

Kristen L. PuttinTitle:

Vice President


[SIGNATURE PAGES CONTINUE ON FOLLOWING PAGE]



FOURTH AMENDMENT TO LOAN
AND SERVICING AGREEMENT



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COLLATERAL CUSTODIAN:WELLS FARGO BANK, N.A.By:

/s/ Kristen L. PuttinName:

Kristen L. PuttinTitle:

Vice President


[SIGNATURE PAGES CONTINUE ON FOLLOWING PAGE]



FOURTH AMENDMENT TO LOAN
AND SERVICING AGREEMENT



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ACCOUNT BANK:WELLS FARGO BANK, N.A.By:

/s/ Rupinder SurlName:

Rupinder SurlTitle:

Vice President


[SIGNATURE PAGES CONTINUE ON FOLLOWING PAGE]



FOURTH AMENDMENT TO LOAN
AND SERVICING AGREEMENT