Exhibit 99.1

FOR IMMEDIATE RELEASE

Hill International Reports 2022 Third Quarter Financial Results

PHILADELPHIA, PA - November 11, 2022 - Hill International, Inc. (NYSE:HIL) ("Hill" or the "Company"), delivering the infrastructure of change, announced today its financial results for the third quarter and nine months ended September 30, 2022.

Third Quarter 2022 Overview

· Total revenue increased to $109.6 million from $96.6 million in the prior year period.

· Consulting Fee Revenue (CFR) rose 10.5% to $85.1 million from $77.1 million in the prior year period

· Gross profit up 6.8% to $34.6 million from $32.4 million in the prior year period

· Net loss of $(0.7) million, or $(0.01) per diluted share, compared to net income of $1.3 million, or $0.02 per diluted share in the prior year period

· Net cash provided by operating activities in Q3 2022 was $1.4 million compared to net cash provided by operating activities of $6.2 million in Q3 2021.

· Unrestricted cash at September 30, 2022 was $22.8 million compared to unrestricted cash of $21.8 million at December 31, 2021.

· At September 30, 2022, the Company had approximately $3.6 million in available and undrawn credit facilities and total liquidity was $26.5 million.

Proposed Transaction with Global Infrastructure Solutions Inc.

As previously announced, the Company entered into a merger agreement with Global Infrastructure Solutions Inc. (GISI).

The transaction was approved by Hill shareholders on November 2, 2022. Pursuant to the terms of the Merger Agreement, the consummation of the Merger remains subject to various closing conditions, including but not limited to (i) the receipt of consent or authorization under certain foreign antitrust laws, and (ii) the absence of any order that has the effect of preventing, making illegal or otherwise prohibiting the consummation of the Merger. As of the date hereof, the Company continues to expect to complete the merger in the fourth calendar quarter of 2022.

For more information about the pending transaction with GISI, see the Company’s Current Report on Form 8-K filed with the U.S. Securities and Exchange Commission (“SEC”) on August 29, 2022.

Investor Communications

In light of the proposed merger with GISI, Hill will not host an earnings conference call or provide financial guidance in conjunction with this earnings release. For further detail and discussion of Hill's financial performance please refer to Hill's Quarterly Report on Form 10-Q for the quarter ended September 30, 2022, which Hill intends to file with the SEC on November 14, 2022. The Company plans to continue to file reports with the SEC until the transaction has been completed.

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About Hill International

Hill International, with more than 3,200 professionals in over 100 offices worldwide, provides program management, project management, construction management, project management oversight, construction claims, dispute resolution, advisory, facilities management, and other consulting services to clients in a variety of market sectors. Engineering News-Record magazine recently ranked Hill as one of the largest construction management firms in the United States. For more information on Hill, please visit our website at www.hillintl.com.

Forward Looking Statements

Certain statements contained herein may be considered "forward-looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995, and it is our intent that any such statements be protected by the safe harbor created thereby. Except for historical information, the matters set forth herein including, but not limited to, any statements of belief or intent, any statements concerning our plans, strategies, and objectives for future operations are forward-looking statements. These forward-looking statements are based on our current expectations, estimates and assumptions and are subject to certain risks and uncertainties. Although we believe that the expectations, estimates, and assumptions reflected in our forward-looking statements are reasonable, actual results could differ materially from those projected or assumed in any of our forward-looking statements. Important factors that could cause our actual results to differ materially from estimates or projections contained in our forward-looking statements are set forth in the Risk Factors section and elsewhere in the reports we have filed with the Securities and Exchange Commission, including that unfavorable global economic conditions may adversely impact our business, our backlog may not be fully realized as revenue, our expenses may be higher than anticipated and that the proposed merger with Global Infrastructure Solutions remains subject to the satisfaction of certain closing conditions. We do not intend, and undertake no obligation, to update any forward-looking statement.

Hill International, Inc.	The Equity Group Inc.
Elizabeth J. Zipf, LEED AP BD+C	Devin Sullivan
Senior Vice President Hill International, Inc	Senior Vice President
One Commerce Square	(212) 836-9608
2005 Market Street, 17th Floor	dsullivan@equityny.com
Philadelphia, PA 19103
(215) 309-7707	Lena Cati
elizabethzipf@hillintl.com	Vice President
	(212) 836-9611
	lcati@equityny.com

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HILL INTERNATIONAL, INC. AND SUBSIDIARIES

CONSOLIDATED BALANCE SHEETS

(In thousands)

	September 30, 2022			December 31, 2021
		(Unaudited)
Assets
Cash and cash equivalents	$	22,834		$	21,821
Cash - restricted		4,131			5,562
Accounts receivable, net		136,267			119,516
Current portion of retainage receivable		7,511			9,743
Accounts receivable - affiliates		19,702			21,741
Prepaid expenses and other current assets		9,224			9,937
Income tax receivable		1,397			2,163
Total current assets		201,066			190,483
Property and equipment, net		8,416			8,895
Cash - restricted, net of current portion		2,843			3,063
Operating lease right-of-use assets		15,825			18,347
Financing lease right-of-use assets		613			801
Retainage receivable		5,910			7,491
Acquired intangibles, net		2,963			3,002
Goodwill		40,105			44,127
Investments		1,139			2,038
Deferred income tax assets		1,944			2,165
Other assets		4,018			2,645
Total assets	$	284,842		$	283,057
Liabilities and Stockholders’ Equity
Current maturities of notes payable and long-term debt	$	31,335		$	25,841
Accounts payable and accrued expenses		74,028			63,856
Income taxes payable		4,438			2,610
Current portion of deferred revenue		4,406			4,088
Current portion of operating lease liabilities		4,788			4,777
Current portion of financing lease liabilities		250			246
Other current liabilities		6,997			6,006
Total current liabilities		126,242			107,424
Notes payable and long-term debt, net of current maturities		28,816			29,302
Retainage payable		326			279
Deferred income taxes		918			959
Deferred revenue		3,627			9,541
Non-current operating lease liabilities		15,981			18,565
Non-current financing lease liabilities		385			573
Other liabilities		10,990			13,175
Total liabilities		187,285			179,818
Commitments and contingencies
Stockholders’ equity:
Preferred stock, $0.0001 par value; 1,000 shares authorized, none issued		—			—
Common stock, $0.0001 par value; 100,000 shares authorized, 63,674 shares and 63,291 shares issued at September 30, 2022 and December 31, 2021, respectively		6			6
Additional paid-in capital		219,116			217,471
Accumulated deficit		(83,616	)		(83,813	)
Accumulated other comprehensive loss		(9,342	)		(1,813	)
Less treasury stock of 6,807 at September 30, 2022 and December 31, 2021		(29,056	)		(29,056	)
Hill International, Inc. share of equity		97,108			102,795
Noncontrolling interests		449			444
Total equity		97,557			103,239
Total liabilities and stockholders’ equity	$	284,842		$	283,057

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HILL INTERNATIONAL, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF OPERATIONS

(In thousands, except per share data)

(Unaudited)

	Three Months Ended September 30,					Nine Months Ended September 30,
	2022			2021		2022			2021
Consulting fee revenue	$	85,142		$	77,061	$	254,262		$	227,158
Reimbursable expenses		24,429			19,543		63,275			58,079
Total revenue	$	109,571		$	96,604	$	317,537		$	285,237
Direct expenses		74,917			64,196		213,620			194,314
Gross profit		34,654			32,408		103,917			90,923
Selling, general and administrative expenses		31,035			28,121		92,831			82,906
Foreign currency exchange loss		803			511		3,730			2,751
Plus: Share of profit of equity method affiliates		506			551		1,456			1,805
Operating profit	$	3,322		$	4,327	$	8,812		$	7,071
Less: Interest and related financing fees, net		2,098			1,226		4,805			4,077
Other loss, net		104			—		319			—
Earnings before income taxes	$	1,120		$	3,101	$	3,688		$	2,994
Income tax expense		1,823			1,784		3,602			4,653
Net earnings (loss)	$	(703	)	$	1,317	$	86		$	(1,659	)
Less: net (loss) earnings - noncontrolling interests		(14	)		58		(112	)		265
Net (loss) earnings attributable to Hill International, Inc.	$	(689	)	$	1,259	$	198		$	(1,924	)
Basic (loss) earnings per common share - Hill International, Inc.	$	(0.01	)	$	0.02	$	—		$	(0.03	)
Basic weighted average common shares outstanding		58,073			57,245		57,858			57,102
Diluted (loss) earnings per common share - Hill International, Inc.	$	(0.01	)	$	0.02	$	—		$	(0.03	)
Diluted weighted average common shares outstanding		58,073			57,245		59,767			57,102

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HILL INTERNATIONAL, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF CASH FLOWS

(In thousands)

(Unaudited)

	Nine Months Ended September 30,
	2022			2021
Cash flows from operating activities:
Net earnings (loss)		86			(1,659	)
Adjustments to reconcile net loss to net cash provided by (used in):
Depreciation and amortization		1,784			1,856
Recovery for bad debt		(431	)		(2,794	)
Amortization of deferred loan fees		344			568
Deferred tax expense		140			(120	)
Share-based compensation		1,589			1,814
Operating lease right-of-use assets		3,908			3,306
Foreign currency remeasurement losses		1,544			2,510
Changes in operating assets and liabilities:
Accounts receivable		(23,773	)		(15,521	)
Accounts receivable - affiliate		2,039			(5,728	)
Prepaid expenses and other current assets		253			(3,951	)
Income taxes receivable		399			1,232
Retainage receivable		3,534			(953	)
Other assets		(976	)		(1,926	)
Accounts payable and accrued expenses		13,440			13,181
Income taxes payable		1,944			(1,202	)
Deferred revenue		(4,351	)		1,482
Operating lease liabilities		(3,702	)		(2,698	)
Other current liabilities		1,139			3,432
Retainage payable		47			(314	)
Finance lease liabilities		(13	)		—
Other liabilities		(1,260	)		492
Net cash used in operating activities		(2,316	)		(6,993	)
Cash flows from investing activities:
Purchase of NEYO Group		—			(681	)
Purchase of property and equipment		(1,472	)		(1,197	)
Net cash used in investing activities		(1,472	)		(1,878	)
Cash flows from financing activities:
Repayment of term loans		(505	)		(802	)
Proceeds from revolving loans		31,667			29,785
Repayment of revolving loans		(25,336	)		(25,816	)
Proceeds from stock issued under employee stock purchase plan		56			118
Net cash provided by financing activities		5,698			3,285
Effect of exchange rate changes on cash, cash equivalents and restricted cash		(2,548	)		(2,654	)
Net decrease in cash, cash equivalents and restricted cash		(638	)		(8,240	)
Cash, cash equivalents and restricted cash — beginning of period		30,446			41,413
Cash, cash equivalents and restricted cash — end of period	$	29,808		$	33,173

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	Nine Months Ended September 30,
	2022		2021
Supplemental disclosures of cash flow information:
Interest and related financing fees paid	$	4,668	$	3,520
Income taxes paid		2,218		3,830
Cash paid for amounts included in the measurement of lease liabilities		5,681		4,897
Right-of-use assets obtained in exchange for operating lease liabilities		1,648		8,568
Right-of-use assets obtained in exchange for finance lease liabilities		—		538

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