The following is an estimate of the expenses (all of which are to be paid by the registrant) that we may incur in connection with the securities being registered hereby.

We will bear all costs, expenses and fees in connection with the registration of the securities, including with regard to compliance with state securities or “blue sky” laws. The Selling Securityholders, however, will bear all underwriting commissions and discounts, if any, attributable to their sale of the securities.

Section 145(a) of the DGCL provides, in general, that a corporation may indemnify any person who was or is a party to or is threatened to be made a party to any threatened, pending or completed action, suit or proceeding, whether civil, criminal, administrative or investigative (other than an action by or in the right of the corporation), because he or she is or was a director, officer, employee or agent of the corporation, or is or was serving at the request of the corporation as a director, officer, employee or agent of another corporation, partnership, joint venture, trust or other enterprise, against expenses (including attorneys’ fees), judgments, fines and amounts paid in settlement actually and reasonably incurred by the person in connection with such action, suit or proceeding, if he or she acted in good faith and in a manner he or she reasonably believed to be in or not opposed to the best interests of the corporation and, with respect to any criminal action or proceeding, had no reasonable cause to believe his or her conduct was unlawful.

Section 145(b) of the DGCL provides, in general, that a corporation may indemnify any person who was or is a party or is threatened to be made a party to any threatened, pending or completed action or suit by or in the right of the corporation to procure a judgment in its favor because the person is or was a director, officer, employee or agent of the corporation, or is or was serving at the request of the corporation as a director, officer, employee or agent of another corporation, partnership, joint venture, trust or other enterprise, against expenses (including attorneys’ fees) actually and reasonably incurred by the person in connection with the defense or settlement of such action or suit if he or she acted in good faith and in a manner he or she reasonably believed to be in or not opposed to the best interests of the corporation, except that no indemnification shall be made with respect to any claim, issue or matter as to which he or she shall have been adjudged to be liable to the corporation unless and only to the extent that the Court of Chancery or other adjudicating court determines that, despite the adjudication of liability but in view of all of the circumstances of the case, he or she is fairly and reasonably entitled to indemnity for such expenses that the Court of Chancery or other adjudicating court shall deem proper.

Section 145(g) of the DGCL provides, in general, that a corporation may purchase and maintain insurance on behalf of any person who is or was a director, officer, employee or agent of the corporation, or is or was serving at the request of the corporation as a director, officer, employee or agent of another corporation, partnership, joint venture, trust or other enterprise against any liability asserted against such person and incurred by such person in any such capacity, or arising out of his or her status as such, whether or not the corporation would have the power to indemnify the person against such liability under Section 145 of the DGCL.

Aditionally, our Certificate of Incorporation eliminates our directors’ liability for monetary damages to the fullest extent permitted by applicable law. The DGCL provides that directors of a corporation will not be personally liable for monetary damages for breach of their fiduciary duties as directors, except for liability:

If the DGCL is amended to authorize corporate action further eliminating or limiting the personal liability of directors, then the liability of our directors will be eliminated or limited to the fullest extent permitted by the DGCL, as so amended.

The Certificate of Incorporation authorizes us to indemnify and advance expenses to, to the fullest extent permitted by applicable law, our directors, officers and agents. We maintain a directors’ and officers’ insurance policy pursuant to which our directors and officers are insured against liability for actions taken in their capacities as directors and officers. Finally, the Certificate of Incorporation prohibits any retroactive changes to the rights or protections or that increase the liability of any director in effect at the time of the alleged occurrence of any act or omission to act giving rise to liability or indemnification.

In addition, we have entered into separate indemnification agreements with our directors and officers. These agreements, among other things, require us to indemnify our directors and officers for certain expenses, including attorneys’ fees, judgments, fines and settlement amounts incurred by a director or officer in any action or proceeding arising out of their services as one of our directors or officers or any other company or enterprise to which the person provides services at our request.

We believe these provisions in the Certificate of Incorporation are necessary to attract and retain qualified persons as directors and officers.

The proposed form of Underwriting Agreement to be filed as Exhibit 1.1 to this registration statement provides for indemnification by the underwriters of us and our directors and officers, and by us and the selling securityholders of the underwriters, for certain liabilities arising under the Securities Act or otherwise in connection with this offering.

Insofar as indemnification for liabilities arising under the Securities Act may be permitted to directors, officers or persons controlling us pursuant to the foregoing provisions, we have been informed that in the opinion of the SEC, such indemnification is against public policy as expressed in the Securities Act and is therefore unenforceable.

In April 2019, the Sponsor purchased 5,750,000 shares of South Mountain Class B Common Stock for an aggregate price of $25,000. On June 19, 2019, SMMC effected a 1.125-for-1 stock split of South Mountain Class B Common Stock. As a result, the Sponsor held 6,468,750 South Mountain Class B Common Stock, of which up to 218,750 shares were subject to forfeiture following the underwriter’s election to partially exercise its over-allotment option in the IPO, so that the Sponsor would own, on an as-converted basis, 20% of SMMC’s issued and outstanding shares after the IPO (assuming the Sponsor did not purchase any shares of South Mountain Class A Common Stock in the IPO). The underwriter’s election to exercise the remaining over-allotment option expired unexercised on August 5, 2019 and, as a result, 218,750 shares of South Mountain Class B Common Stock were forfeited, resulting in 6,250,000 shares of South Mountain Class B Common Stock outstanding as of August 5, 2019. The South Mountain Class B Common Stock automatically converted into South Mountain Class A Common Stock upon the consummation of the Business Combination on a one-for-one basis, subject to adjustments.

On June 24, 2019, the Sponsor purchased from SMMC an aggregate of 6,954,500 Private Placement Warrants (for a purchase price of approximately $6.95 million). Each Private Placement Warrant entitles the holder thereof to purchase one share of our Common Stock at an exercise price of $11.50 per share. The sale of the Private Placement

Warrants was made pursuant to an exemption from registration contained in Section 4(a)(2) of the Securities Act. All 2,787,833 Private Placement Warrants held by the Sponsor were transferred to SMMC for cancellation pursuant to the terms set forth in the Share and Warrant Cancellation Agreement.

On January 12, 2021, the Subscribers purchased from the Company an aggregate of 20,000,000 shares of Common Stock, for a purchase price of $10.00 per share and an aggregate purchase price of $200.0 million, pursuant to Subscription Agreements entered into effective as of October 18, 2020.

The undersigned registrant, hereby undertakes:

Pursuant to the requirements of the Securities Act of 1933, the registrant has duly caused this Registration Statement to be signed on its behalf by the undersigned, thereunto duly authorized in the City of Lawrenceville, State of New Jersey on June 30, 2021.

Pursuant to the requirements of the Securities Act of 1933, as amended, this registration statement has been signed below by the following persons in the capacities and on the date indicated.