1  Rights Offering of Common SharesOTCQX: TRIN  Free Writing ProspectusFiled Pursuant to Rule 433Registration Statement No. 333-218952Dated September 22, 2017 

 2  Forward Looking Statements  This presentation contains forward looking statements of the Company within the meaning of the Private Securities Litigation Reform Act of 1995, with respect to the financial condition, results of operations, plans, objectives, future performance and business of the Company. Actual results could differ materially from the results indicated in this presentation because of risks and uncertainties, known or unknown (many of which are beyond the Company’s control), including those described in Item 1A “Risk Factors” in the Company’s Form 10-K for the year ended December 31, 2016 and the Company’s Registration Statement on Form S-1, as amended (No. 333-218952), filed with the Securities and Exchange Commission on June 23, 2017. Although the Company believes that the assumptions underlying the forward-looking statements are reasonable, any of the assumptions could prove to be inaccurate. All subsequent written and oral forward-looking statements in this presentation attributable to the Company or any person acting on its behalf are expressly qualified in their entirety by the cautionary statements above. All statements in this presentation, including forward-looking statements, speak only as of the date they are made, and the Company undertakes no obligation to update or revise any statement in light of new information or future events, except as required by law.  The Company has filed a registration statement (including a prospectus) with the Securities and Exchange Commission for the offering mentioned in this communication. Before you invest, you should read the prospectus in that registration statement and the other documents that the Company has filed with the Securities and Exchange Commission for more complete information about the Company and the offering. You may get these documents for free by visiting EDGAR on the SEC website at www.sec.gov. Alternatively, the Company, Boenning & Scattergood, Inc., as our financial advisor for the offering, or Continental Stock Transfer & Trust Company, as our subscription agent in the offering, will arrange to send you a prospectus, if you request it by contacting the Company at (505) 662-5171, Boenning & Scattergood at (866) 326-8186 or trinityinfo@boenninginc.com attn: Michael Marting or Continental at (917) 262-2378. 

 3  Issuer:  Trinity Capital Corporation  Securities Offered:  Voting Common Stock  Offering Price:  $4.75  Offering Size:  Approximately $10 million  Financial Advisor & Placement Agent:  Boenning & Scattergood, Inc.  Rights Offering Terms:  Basic subscription rights allow existing shareholders to purchase 1.000 new share for every 4.1747 shares owned as of the record date  Oversubscription Privilege:  Available to shareholders who fully subscribe to their shares, if additional shares are available after other subscribers and direct share purchase program  Record Date:  September 22, 2017  Offering Expiration:  November 3, 2017  Directed Share Program and Supplemental Community Offering:   Reserving 526,315 shares for sale to directors, officers, and employees. Shares not subscribed for in the rights offering, directed share program or by the standby purchaser will be allocated to the supplemental community offering and sold at the Company’s discretion.  Subscription Agent:  Continental Stock Transfer & Trust Company  Standby Purchaser:  Strategic Value Bank Partners, as an existing shareholder, has agreed to purchase up to 281,987 shares, if available  Offering Overview 

 4  Process Overview  Registered holders interested in participating in the offering should send a completed rights certificate and payment (other than by wire transfer) to:Continental Stock Transfer & Trust Company1 State Street Plaza - 30th FloorNew York, NY 10004A shareholder participating in the offering should submit payment for the full number of shares for which he or she is subscribing by any one of the following methods: Cashier’s check or personal check drawn upon a U.S. bank made payable to Continental Stock Transfer & Trust CompanyWire transfer of immediately available funds to the following account maintained by the subscription agent:Trinity Capital Corporation Escrow Accountc/o Continental Stock Transfer & Trust Company Account No.: 475-470656 ABA/Routing Number: 021.000.021Upon completion of the subscription period, the Company will determine the number of shares subscribed for in the rights offering and directed share program and determine whether to accept subscriptions from the supplemental community offering. The Company will credit the account of each rights holder with shares of voting common stock purchased pursuant to the exercise of the basic subscription right and the over-subscription privilege as soon as practicable after the rights offering has closed.Please consult the prospectus for further details on how to execute your subscription privileges. You may also contact Boenning & Scattergood, our financial advisor, at (866) 326-8186 or trinityinfo@boenninginc.com, Attn: Michael G. Marting. 

   5  Largest bank headquartered in the state of New Mexico The Bank celebrated 54th anniversary on June 12thSix offices in three markets Service-driven cultureCommunity - focused with annual donations to nearly 300 non-profit organizationsLANB has been voted one of the Best Banks in Santa Fe by the readers of the Santa Fe Reporter for the past 12 years  Franchise Summary   

 6  Our Turnaround Story    2006  NovemberMaterial weakness in financial reports dating back to 2006  NovemberTrinity receives $35.5 million in TARPOctoberOpened 3rd Santa Fe branchDecemberTotal assets at year end were $1.67 billion  2009  2011  NovemberOpened Albuquerque branch  2012  SeptemberBank enters into formal agreement with OCC  2013  JanuaryCompany receives subpoena from Securities and Exchange Commission (“SEC”) opening an investigation into restatementJulyThomas Lilly appointed Chief Credit OfficerSeptemberTrinity enters into written agreement with FedDecemberThe Bank enters into Consent Order with OCC (supersedes the formal agreement)  2014  MayJohn Gulas hired as CEO and PresidentSeptemberYin Y Ho appointed Chief Information OfficerDecemberRestated the 12/31/2911 year end financials as well as the 3/31/2012 & 6/30/2012 quarterly financials  2015  MayStan Sluder appointed Chief Lending OfficerSeptemberSettled SEC investigation paying $1.5 million in finesOctoberDaniel Thompson appointed CFODecemberReturn to profitability with consolidated net income for the year of $1.9 million  2016  JanuaryJoe Martony appointed Chief Risk OfficerJulyConversion of core systemsDecemberRaised $52.0 million of new capital  2017  JanuaryRedeemed TARPMarchRepaid all deferred interest on sub debtDaniel Thompson retired as CFO, Company appoints Michael Schuler as Interim CFOAprilTimely filed 2016 form 10KMayTimely filed Q1 2017 Form 10QJuneRelocated Albuquerque branchAppointment of Tom Dolan as CFO to the Company and the BankAugustTimely filed Q2 2017 Form 10Q 

 7  Continuing Recovery & Executing Business Plan  Building Shareholder Value 

 8  Superior Service Culture  WHYTo add value to the lives of our communities, customers and employees.HOWThrough excellent service that is designed to help customers identify and achieve financial goals.WHATProvide deposit and credit products and services that improve the lives of our customers by providing them improved access, information and ideas. 

 9  Investment Highlights 

 10  Significant Insider Ownership (as of July 31, 2017)  Not eligible to participate in the offering (has board representation)Standby Purchaser (does not have board representation)Chaired by Ms. Jeffrey F. Howell  If fully utilized, Directed Share Purchase will increase management ownership by 526,315 shares to approximately 4.3% ownership on a pro forma basis. *      Beneficial Shares  % of Voting  Gregory G. Antonsen  Director  8,657  NM  James F. Deutsch  Director  211  NM  Thomas Dolan  Chief Financial Officer  0  NM  James E. Goodwin, Jr.  Chairman  6,563  NM  John S. Gulas  Director and Chief Executive Officer  22,144  NM  Jeffrey F. Howell  Director  19,396  NM  Leslie Nathanson Juris  Director  8,026  NM  Thomas Lilly  Chief Credit Officer  2,987  NM  Arthur B. Montoya, Jr.  Director  29,965  NM  Tony Scavuzzo  Director  211  NM  Charles A. Slocomb  Director  21,019  NM  Robert P. Worcester  Director  33,306  NM  Total Officers and Directors    156,796  1.6%          Castle Creek Capital Partners VI, L.P. (1)    909,567  9.8%  Patriot Financial Partners II, L.P. (1)    909,567  9.8%  Strategic Value Investors LP (2)    842,105  9.1%  Trinity Capital Corporation ESOP (3)    671,578  7.3%  The Delle Foundation    567,097  6.1%  Total Shareholders > 5% Ownership    3,899,914  42.1%          Total Insider Ownership    4,052,399  43.8%  * Please see details in the prospectus for more information on insider ownership 

 11  Desirable Markets  Source: SNL Financial  LANB operates in the most attractive metro areas in New Mexico, which are very desirable when compared to all MSAs across the country.All three (Los Alamos, Santa Fe, and Albuquerque) are in the top half of MSAs for projected population growth. Santa Fe places in the 79th percentile amongst all MSAs in the country in terms of expected household income growth. 

 12  Deposit Market Share Overview as of 6/30/2016  Source: FDIC 

 13  Community Banking Philosophy  Source: SNL Financial  Franchise value driven by dedication to making a difference in markets served.Customers benefit from local decision-making and individual service.Customer-centric approach builds long term relationships with desirable customers.Respected position in communities served encourages recruitment of talented and experienced management team.Seasoned community banking executive management team.Contribute to nearly 300 non-profit organizations annually.Employee giving campaign raised over $50,000 in aggregate for United Way of Northern New Mexico, Santa Fe Community Foundation and United Way of Central New Mexico in 2016.Winner of the 2016 St. Vincent’s Hospital Foundation and Albuquerque Journal’s Philanthropist of the Year Award. Employees have cumulatively volunteered approximately 1,000 hours of community service as of August 31, 2017 

 14  Experienced Management Team  Name  Title  Years of Experience  Year started with LANB  Selected Professional Biography  John S. Gulas  President & Chief Executive Officer  34  2014   Most recently employed as President and Chief Executive Officer for Farmers National Bank in Ohio. Graduate of the University of Toledo College of Law, with a Juris Doctor degree in Law.   Tom Dolan  EVP, Chief Financial Officer  35  2017  Most recently employed at Anchor Bank in Madison, WI as the Chief Operating Officer.Graduated from Loyola University with a Bachelor of Science in Economics and earned an MBA at the University of Chicago with a concentration in Finance.  Joe Martony  EVP, Chief Risk Officer  30  2016  Most recently employed as Executive Vice President and Chief Risk Officer for SKBHC Holdings LLC, Starbuck Bancshares, Inc. and American West Bank in Washington. Graduate of Indiana University, with a Bachelor of Science degree in Business Finance.  Stan Sluder  EVP, Chief Lending Officer & Director of Sales  28  2015  Most recently employed as Market President and Chief Lending Officer for Peoples Bank in New Mexico. Graduate of New Mexico State University with a Bachelor of Science in Communication Studies.  Tom Lilly  EVP, Chief Credit Officer  25  2013  Most recently employed as Senior Vice President and Chief Credit Officer for The National Bank in Iowa.Graduated from the School of Banking at the University of Wisconsin and completed certifications from the Commercial Lending School in Norman, Okla., and the Consumer Lending School from the University of Wisconsin.   Eddie Ho  EVP, Chief Information Officer  39  2014  Previously employed as Executive Vice President and Chief Information Officer at OmniAmerican Bank in Fort Worth, Texas.Graduated with a BS from University of Wisconsin, an MS in Computer Science from North Dakota State University, and holds CIPP, CISA, CISM, CGEIT, and CISSP certification.  Jennifer Weller  SVP, Retail Operations & Delivery  27  2016  Most recently employed as VP Operations for Central Bancshares, Inc. in Iowa.Graduate of the University of South Dakota with a Bachelor of Science degree in Business Administration.   Liddie Martinez   SVP, Market President, Los Alamos  27  2016  Most recently employed as the Executive Director of Regional Development Corporation for Northern New Mexico. Currently serves on the board of the LANL Subcontractor Consortium, Think New Mexico, New Mexico Economic Development Rural Council, Northern New Mexico College Foundation, and the Los Alamos Commerce and Development.  Dion Silva  SVP, Market President, Santa Fe  16  2001  Served as the Vice President of Lending through 2016, when he became Market President for Santa Fe. Graduate of New Mexico State University, with a Bachelor of Science degree in Environmental Engineering and a Master of Business Administration Degree in Finance. 

 15  James E. Goodwin, Jr.New Chairman of the Board   Member of the Boards of Directors of Trinity and the Bank since 2013. Former chair of the Audit Committee and serves as the audit committee financial expert, as defined under the SEC rules and regulations. Former Chair of the Board’s Asset/Liability Management Committee and is a member of the Board’s Compensation, and Loan and Strategic Planning Committees. Previously a Partner in the firm of PricewaterhouseCoopers LLP and served as a member of the firm’s U.S. Board of Partners and Principals.  Member of the Board of Directors of The National Dance Institute of New Mexico.  Member of the Audit Committee of the New Mexico State Investment Council.    Experienced Management Team 

 16  Strong Balance Sheet & Capital Position  Demand deposits, noninterest bearing  $159.5  NOW and money market accounts  408.8  Savings deposits  405.2  Time certificates, $250,000 or more  24.4  Other time certificates  166.9  Total Deposits ($ in millions)  $1,164.7 

 17    7.00%  4.00%  8.50%  10.50%  CET1  Leverage  Tier 1  Total Capital  Summary Capital Position as of 6/30/2017    Buffered Risk Based Capital Ratios Required Under Basel III Rules  All banks have until January 1, 2019 before the Capital Conservation Buffer is fully phased in. As of June 30, 2017, we currently satisfy the new minimums and the totally phased in buffered ratios. 

 18  Summary Asset Quality  Source: SEC filings*NPAs = 90 + days past due & Accruing + Nonaccrual + OREO 

 19  Loan Portfolio Trends  Amount in Thousands  6/30/2017      Yield on Loans: 4.84%Net Interest Margin: 3.27%   12/31/2016    Yield on Loans: 4.79%Net Interest Margin: 3.16%    

 20  Scarcity Value  Trinity is the largest community bank headquartered in and focusing on New Mexico. Since 2010, four banks headquartered in New Mexico have been acquired, which has positioned Trinity as the “go-to” community bank in the state.   Source: FDIC, as of 6/30/2016Light blue shading indicates bank has been acquired or no longer operating in the state 

 21  Scarcity Value  Median Household Income      #1  #4          #2  #3  #6  #5  Trinity operates in some of the wealthiest areas in New Mexico.  Source: SNL and Nielson, FDIC as of 6/30/2016    > $75,001    $60,001 - $75,000    $45,001 - $60,000    $30,001 - $45,000    $30,000 

 22  Scarcity Value  LANB was founded in 1962 in Los Alamos, New Mexico, and added a second area branch in White Rock in 1971.Los Alamos is a genuinely unique market, with levels of stability and affluence that bely its relatively small population.The median household income in Los Alamos County was 88% higher than the national median as of 2016. As of 2014, 12.4% of households had over $1 million in assets, making Los Alamos the city with the highest concentration of millionaires in the U.S.The city is home to the famous Los Alamos National Laboratory, know best for coordinating the Manhattan Project. LANL’s budget is over $2.2 billion annually and it directly employs over 11,000 people.In 2016, 18.6% of residents over the age of 25 held a doctoral degree, compared to 1.3% for the United States overall.As of June 30, 2016, LANB dominated deposit market share in Los Alamos County with $707.5 million in deposits, or 89.8% of the $793.1 million of total deposits in the market.   Santa Fe has a strong tourism sector, owing to its rich cultural history that dates back to the 15th century. It is the oldest state capital and its Palace of the Governors is the oldest continuously occupied public building in the United States.In part due to its proximity to Los Alamos, Santa Fe has become a hub for science and technology, and has spawned the Santa Fe Institute and the National Center for Genome Research. The presence of these institutions and Santa Fe’s established tourist industry has led Santa Fe to routinely host a variety of scientific conferences, meetings and summer schools.As of June 30, 2016, the Bank ranked third out of ten institutions in Santa Fe by deposit market share, with $482.0 million of deposits, or 16.6% of the $3.3 billion of total deposits in the market. Since 2000, the Santa Fe deposit market has increased by 179.4%, or 6.6% compounded annually through 2016. In 2016, the greater Santa Fe MSA had a population of approximately 150,000 with a projected population growth rate of 2.1% over the next five years.  In 2006, Trinity entered the market with a branch in North Albuquerque and moved to its current location in June 2017 to be more accessible to customers. Albuquerque is the largest city in New Mexico, the fourth largest city on the Southwestern United States, and the 32nd most populous city in the United States. Sandia National Laboratories, located on the Kirkland Air Force Base, employs over 8,000 people towards the research and development of non-nuclear components of nuclear weapons and supporting technologies.The MSA is also the major manufacturing center of New Mexico, including Boeing, Intel, Eclipse Aerospace, SolAero Technologies and OSO BioPharmaceuticals Manufacturing.In 2016, the greater Albuquerque MSA boasted a population of approximately 908,000 with a projected population growth rate of 2.3% over the next five years.In Albuquerque, Trinity ranks 14th out of 21 institutions in the city by deposit market share, with $75.2 million of deposits, or 0.5% of the $14.6 billion of deposits in the market as of June 30, 2016.   Los Alamos County  Santa Fe MSA  Albuquerque MSA  Source: SNL Financial, Nielsen, Los Alamos National Laboratory, Kiplinger, Bureau of the Census, and Bureau of Economic Analysis  

 23  Annual Financial Performance  *  Note: $ in thousands* Reversal of the majority of the valuation allowance on DTA’s 

 24  Quarterly Financial Performance  Note: $ in thousands 

 25  Expense Ratio Trends  * Expense Ratio = Noninterest Expense / Total Assets 

 26  Strategic Business Review  The Company has undertaken a strategic business review designed to increase operating efficiencies through focused cost reductions without compromising customer service. We believe this review will:   Improve cost controls and overall efficiencies within the Bank.Identify opportunities for expense reduction (sunset legacy systems, space planning, vendor management, operating efficiencies).Improve the budgeting and strategic planning process.Create and distribute internal management reporting to help our managers make more informed decisions. Improve the planning and analysis around making investment decisions. 

 27  Profitability Trends 

 28  Investment Highlights 

 29  Contact Information  Tom DooleySenior Vice PresidentW: (614) 408-1224tdooley@boenninginc.com    Nick BickingSenior Vice President(614) 408-1223nbicking@boenninginc.com  Michael C. VoinovichManaging DirectorW: (216) 378-1302M: (440) 804-6254mvoinovich@boenninginc.com    Christopher M. ChapmanDirectorW: (216) 378-1297M: (216) 288-2924cchapman@boenninginc.com  Please consult the offering document for further details on how to execute your subscription privileges. You may also contact representatives from Boenning & Scattergood, our financial advisor below or, at (866) 326-8186 or trinityinfo@boenninginc.com, Attn: Michael G. Marting  John S. GulasChief Executive OfficerW: (505) 663-3990johnsg@lanb.com    Thomas DolanChief Financial OfficerW: (505) 662-1045thomasd@lanb.com